From 5e411e1f9bdec6c734dd188eed03617b9b81fff4 Mon Sep 17 00:00:00 2001
From: ryan <ryanennns@gmail.com>
Date: Sat, 21 Mar 2026 10:56:14 -0400
Subject: [PATCH 01/32] remove all load balancing logic from intervals

---
 load-balancer/index.ts                |   4 +-
 load-balancer/package-lock.json       |   1 -
 load-balancer/src/intervals.ts        | 198 +-------------------------
 load-balancer/src/utils.ts            |   9 ++
 load-balancer/tests/intervals.spec.ts | 175 +----------------------
 package-lock.json                     |   3 -
 6 files changed, 14 insertions(+), 376 deletions(-)

diff --git a/load-balancer/index.ts b/load-balancer/index.ts
index 86ce6eb..814a558 100644
--- a/load-balancer/index.ts
+++ b/load-balancer/index.ts
@@ -1,7 +1,7 @@
 import { app } from "./src/app.ts";
 import { terminalUi } from "./terminal-ui.ts";
-import { childServerMap, shutdown } from "./src/utils.ts";
-import { spawnServer, startIntervals } from "./src/intervals.ts";
+import { childServerMap, shutdown, spawnServer } from "./src/utils.ts";
+import { startIntervals } from "./src/intervals.ts";
 
 const port = 3000;
 terminalUi.setRuntimeInfo({ port, serviceName: "load-balancer" });
diff --git a/load-balancer/package-lock.json b/load-balancer/package-lock.json
index 56c4a17..7e560d4 100644
--- a/load-balancer/package-lock.json
+++ b/load-balancer/package-lock.json
@@ -54,7 +54,6 @@
       "resolved": "https://registry.npmjs.org/@redis/client/-/client-5.11.0.tgz",
       "integrity": "sha512-GHoprlNQD51Xq2Ztd94HHV94MdFZQ3CVrpA04Fz8MVoHM0B7SlbmPEVIjwTbcv58z8QyjnrOuikS0rWF03k5dQ==",
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "cluster-key-slot": "1.1.2"
       },
diff --git a/load-balancer/src/intervals.ts b/load-balancer/src/intervals.ts
index 02dc27f..2eebc7a 100644
--- a/load-balancer/src/intervals.ts
+++ b/load-balancer/src/intervals.ts
@@ -4,11 +4,8 @@ import {
   redisClient,
   runtimeState,
   serverBlacklist,
-  websocketServerFactory,
 } from "./utils.ts";
 import {
-  debugLog,
-  redisRedistributeChannelFactory,
   removeServerFromRedis,
   serversChatRoomsCountKey,
   serversClientCountKey,
@@ -17,7 +14,6 @@ import {
   serversSocketWritesPerSecondKey,
   type ServerState,
 } from "@chat/shared";
-import { v4 } from "uuid";
 
 const PPS_SURGE_THRESHOLD = 40;
 
@@ -37,72 +33,6 @@ const AVERAGE_INTERVAL_TIMEOUT_CRITICAL_THRESHOLD = Number(
   process.env.AVERAGE_INTERVAL_TIMEOUT_CRITICAL_THRESHOLD ?? 10,
 );
 
-const shouldRedistribute = (
-  distribution: number,
-  totalClients: number,
-  totalServers: number,
-) => {
-  const optimalDistribution = totalClients / totalServers;
-
-  return (
-    distribution > optimalDistribution &&
-    distribution - optimalDistribution > 1 &&
-    distribution / optimalDistribution > redistributeThreshold &&
-    !isSurge()
-  );
-};
-
-export async function redistributeLoad() {
-  const [serverConnections, serverWritesPerSecond] = await Promise.all([
-    redisClient.zRangeWithScores(serversClientCountKey, 0, -1),
-    redisClient.zRangeWithScores(serversSocketWritesPerSecondKey, 0, -1),
-  ]);
-  const serverConnectionsMap = serverConnections.filter(
-    (serverConnection) => !serverBlacklist.has(serverConnection.value),
-  );
-  runtimeState.serverMps = serverWritesPerSecond.map(({ value, score }) => [
-    value,
-    score,
-  ]);
-  runtimeState.lastRedistribution = null;
-  const numberOfClients = serverConnectionsMap.reduce(
-    (a, b) => Number(a) + Number(b.score),
-    0,
-  );
-  serverConnectionsMap.sort((a, b) => b.score - a.score);
-  runtimeState.serverLoads = serverConnectionsMap.map(({ value, score }) => [
-    value,
-    score,
-  ]);
-  runtimeState.totalClients = Number(numberOfClients.toFixed(2));
-  runtimeState.totalServers = serverConnectionsMap.length;
-  const optimal = numberOfClients / serverConnectionsMap.length;
-  runtimeState.optimalDistribution = Number.isFinite(optimal) ? optimal : 0;
-
-  for (const serverScoreMap of serverConnectionsMap) {
-    if (
-      shouldRedistribute(
-        serverScoreMap.score,
-        numberOfClients,
-        serverConnectionsMap.length,
-      )
-    ) {
-      const redistributeBy = serverScoreMap.score - Math.floor(optimal);
-      runtimeState.lastRedistribution = {
-        amount: redistributeBy,
-        serverId: serverScoreMap.value,
-        timestamp: new Date().toLocaleTimeString("en-US", {
-          hour12: false,
-        }),
-      };
-      await redisClient.publish(
-        redisRedistributeChannelFactory(serverScoreMap.value),
-        JSON.stringify(redistributeBy),
-      );
-    }
-  }
-}
-
 const detectTimedOutServers = async () => {
   const now = Date.now();
   const cutoff = now - wssServerTimeoutMs;
@@ -184,123 +114,11 @@ export const healthChecks = async () => {
 
   await detectTimedOutServers();
   purgeBlacklistedServers();
-};
-
-export const spawnServer = async () => {
-  const output = await websocketServerFactory(v4());
-
-  if (output) {
-    childServerMap.set(output.server.id, output);
-  }
-};
-
-let lastSpawnedServer = 0;
-export const shouldSpawnNewServer = () => {
-  const lastFiveSecondsOfSocketWrites: Array<Array<number>> = [
-    ...childServerMap.values(),
-  ].map((process) => {
-    const arr = process.state.socketWrites;
-    const sampleSize = 5;
-    if (!arr.length) {
-      return Array.from({ length: sampleSize }).map(() => 0);
-    }
-
-    return arr.slice(arr.length - sampleSize, arr.length);
-  });
-  const serversAboveSocketWriteThreshold = lastFiveSecondsOfSocketWrites.filter(
-    (n) =>
-      n.reduce((a, b) => a + b) / n.length >
-      SOCKET_WRITES_PER_SECOND_CRITICAL_MASS,
-  );
-
-  const maxCapacity = 100_000 * childServerMap.size;
-  const lastFiveSecondsOfTotalLoad = [];
-  const len = lastFiveSecondsOfSocketWrites[0]?.length ?? 1;
-  for (let i = 0; i < len; i++) {
-    let sum = 0;
-    for (let j = 0; j < lastFiveSecondsOfSocketWrites.length; j++) {
-      sum += lastFiveSecondsOfSocketWrites[j][i];
-    }
-    lastFiveSecondsOfTotalLoad.push(sum);
-  }
-
-  const serverStartedRecently = Date.now() - lastSpawnedServer < 10_000;
-  const serverAboveCriticalMass = Boolean(
-    serversAboveSocketWriteThreshold.length,
-  );
-  const cumulativeSocketLoadAboveSafeAverage = Boolean(
-    lastFiveSecondsOfTotalLoad.reduce((a, b) => a + b) /
-      lastFiveSecondsOfTotalLoad.length >
-    maxCapacity,
-  );
-  const areServersTimingOut = Boolean(
-    [...childServerMap.values()].filter((server) => {
-      const len = server.state.timeouts.length;
-      const lastFive = server.state.timeouts.slice(len - 5, len);
-      return (
-        lastFive.reduce((a, b) => a + b) / lastFive.length >
-        AVERAGE_INTERVAL_TIMEOUT_CRITICAL_THRESHOLD
-      );
-    }).length,
-  );
 
-  const val =
-    !serverStartedRecently &&
-    (serverAboveCriticalMass ||
-      cumulativeSocketLoadAboveSafeAverage ||
-      areServersTimingOut);
-
-  if (val) {
-    debugLog({
-      serverStartedRecently,
-      serverAboveCriticalMass,
-      averageSocketLoadAboveSafeAverage: `${cumulativeSocketLoadAboveSafeAverage} - ${lastFiveSecondsOfTotalLoad.reduce((a, b) => a + b) / lastFiveSecondsOfTotalLoad.length} > ${maxCapacity}`,
-      areServersTimingOut,
-    });
-  }
-  return val;
-};
-
-const spawnServerIfRequired = async () => {
-  if (shouldSpawnNewServer()) {
-    debugLog("spawning new process");
-    await spawnServer();
-    lastSpawnedServer = Date.now();
-  }
+  updatePps();
 };
 
-export async function cleanupDeadServers() {
-  const loadKeys = await redisClient.zRangeByScore(
-    serversSocketWritesPerSecondKey,
-    "-inf",
-    "+inf",
-  );
-  const timeoutKeys = await redisClient.zRangeByScore(
-    serversHeartbeatKey,
-    "-inf",
-    "+inf",
-  );
-
-  loadKeys.forEach((key) => {
-    if (timeoutKeys.includes(key)) {
-      return;
-    }
-
-    removeServerFromRedis(key);
-    childServerMap.get(key)?.process?.kill(0);
-    childServerMap.delete(key);
-  });
-
-  childServerMap.forEach((server, key) => {
-    if (server.process.killed) {
-      void removeServerFromRedis(key);
-      childServerMap.delete(key);
-    }
-  });
-}
-
 export let pps = 0;
-export const isSurge = () => pps > PPS_SURGE_THRESHOLD;
 export let provisionsThisSecond = 0;
 export const incrProvisionsThisSecond = () => provisionsThisSecond++;
 const updatePps = () => {
@@ -336,20 +154,6 @@ const syncTerminalUi = () => {
 export const startIntervals = () => {
   setInterval(async () => {
     await healthChecks();
-  }, 1000);
-  setInterval(async () => {
-    await spawnServerIfRequired();
-  }, 1000);
-  setInterval(async () => {
-    await cleanupDeadServers();
-  }, 1000);
-  setInterval(() => {
-    updatePps();
-  }, 1000);
-  setInterval(async () => {
-    await redistributeLoad();
-  }, 1000);
-  setInterval(() => {
     syncTerminalUi();
   }, 1000);
 };
diff --git a/load-balancer/src/utils.ts b/load-balancer/src/utils.ts
index 5ef3a19..d7e5be3 100644
--- a/load-balancer/src/utils.ts
+++ b/load-balancer/src/utils.ts
@@ -10,6 +10,7 @@ import {
   type Server,
   type ServerState,
 } from "@chat/shared";
+import { v4 } from "uuid";
 
 export const redisClient = createClient();
 await redisClient.connect();
@@ -66,6 +67,14 @@ await subscriptionClient.subscribe("panic", (server: string) => {
   );
 });
 
+export const spawnServer = async () => {
+  const output = await websocketServerFactory(v4());
+
+  if (output) {
+    childServerMap.set(output.server.id, output);
+  }
+};
+
 export interface ChildProcess {
   server: Server;
   process: ChildProcessWithoutNullStreams;
diff --git a/load-balancer/tests/intervals.spec.ts b/load-balancer/tests/intervals.spec.ts
index cb15a5e..287b930 100644
--- a/load-balancer/tests/intervals.spec.ts
+++ b/load-balancer/tests/intervals.spec.ts
@@ -1,24 +1,7 @@
 import { beforeEach, describe, expect, it, vi } from "vitest";
-import {
-  cleanupDeadServers,
-  healthChecks,
-  redistributeLoad,
-  shouldSpawnNewServer,
-} from "@load-balancer/src/intervals.js";
+import { healthChecks } from "@load-balancer/src/intervals.js";
 import { v4 } from "uuid";
-import {
-  ChildProcess,
-  childServerMap,
-  serverBlacklist,
-} from "@load-balancer/src/utils.js";
-import {
-  defaultServerState,
-  redisRedistributeChannelFactory,
-  serversClientCountKey,
-  serversHeartbeatKey,
-  serversSocketWritesPerSecondKey,
-} from "@chat/shared";
-import { ChildProcessWithoutNullStreams } from "node:child_process";
+import { serverBlacklist } from "@load-balancer/src/utils.js";
 
 const mockRedisClient = vi.hoisted(() => ({
   connect: vi.fn(),
@@ -52,68 +35,6 @@ describe("intervals", () => {
     serverBlacklist.clear();
   });
 
-  describe("redistributeLoad", () => {
-    it("redistributes when distribution is above threshold", async () => {
-      mockRedisClient.publish = vi.fn();
-      const uuid = v4();
-
-      mockRedisClient.zRangeWithScores = vi
-        .fn()
-        .mockResolvedValueOnce([
-          { value: v4(), score: 0 },
-          { value: uuid, score: 10 },
-        ])
-        .mockResolvedValueOnce([{ value: uuid, score: 3 }])
-        .mockResolvedValueOnce([]);
-
-      await redistributeLoad();
-
-      expect(mockRedisClient.zRangeWithScores).toHaveBeenCalledTimes(2);
-      expect(mockRedisClient.zRangeWithScores).toHaveBeenNthCalledWith(
-        1,
-        serversClientCountKey,
-        0,
-        -1,
-      );
-      expect(mockRedisClient.zRangeWithScores).toHaveBeenNthCalledWith(
-        2,
-        serversSocketWritesPerSecondKey,
-        0,
-        -1,
-      );
-      expect(mockRedisClient.publish).toHaveBeenCalledExactlyOnceWith(
-        redisRedistributeChannelFactory(uuid),
-        "5",
-      );
-    });
-
-    it("doesn't trigger redistribution when server is blacklisted", async () => {
-      mockRedisClient.publish = vi.fn();
-      const now = Date.now();
-      vi.useFakeTimers();
-      vi.setSystemTime(now);
-
-      const healthyServerOne = v4();
-      const healthyServerTwo = v4();
-      const deadServer = v4();
-
-      mockRedisClient.zRangeWithScores = vi
-        .fn()
-        .mockResolvedValueOnce([
-          { value: healthyServerOne, score: 500 },
-          { value: healthyServerTwo, score: 500 },
-          { value: deadServer, score: 500 },
-        ])
-        .mockResolvedValueOnce([]);
-
-      serverBlacklist.set(deadServer, Date.now());
-
-      await redistributeLoad();
-
-      expect(mockRedisClient.publish).not.toHaveBeenCalled();
-    });
-  });
-
   describe("healthChecks", () => {
     it("adds timed-out servers to server blacklist", async () => {
       expect(serverBlacklist.size).toBe(0);
@@ -148,96 +69,4 @@ describe("intervals", () => {
       expect(mockedRemoveServerFromRedis).toHaveBeenCalledOnce();
     });
   });
-
-  describe("cleanupDeadServers", () => {
-    it("removes servers that has a ratio key but no timeout key", async () => {
-      const uuid = v4();
-      mockRedisClient.zRangeByScore = vi
-        .fn()
-        .mockResolvedValueOnce([uuid])
-        .mockResolvedValueOnce(["timeout-server-1"]);
-      childServerMap.set(uuid, {
-        process: {
-          kill: vi.fn(),
-          killed: false,
-        } as unknown as ChildProcessWithoutNullStreams,
-        server: {
-          id: uuid,
-          url: "ws://localhost:3001",
-        },
-        state: defaultServerState(),
-      });
-
-      await cleanupDeadServers();
-
-      expect(mockRedisClient.zRangeByScore).toHaveBeenCalledTimes(2);
-      expect(mockRedisClient.zRangeByScore).toHaveBeenCalledWith(
-        ...[serversSocketWritesPerSecondKey, "-inf", "+inf"],
-      );
-      expect(mockRedisClient.zRangeByScore).toHaveBeenCalledWith(
-        serversHeartbeatKey,
-        "-inf",
-        "+inf",
-      );
-      expect(mockedRemoveServerFromRedis).toHaveBeenCalledExactlyOnceWith(uuid);
-      expect(childServerMap.get(uuid)).toBeUndefined();
-    });
-  });
-
-  describe("shouldSpawnNewServer", () => {
-    const childServerFactory = (overrides: Partial<ChildProcess>) => {
-      const id = v4();
-      return {
-        server: {
-          id,
-          url: "ws://snickers.com:8080,",
-        },
-        process: {} as ChildProcessWithoutNullStreams,
-        state: defaultServerState(),
-        ...overrides,
-      };
-    };
-
-    it("spawns new server if cumulative socket write load is above max capacity", () => {
-      const a = childServerFactory({
-        state: {
-          ...defaultServerState(),
-          socketWrites: [100_000, 100_000, 100_000, 100_000, 100_000],
-        },
-      });
-      childServerMap.set(a.server.id, a);
-      const b = childServerFactory({
-        state: {
-          ...defaultServerState(),
-          socketWrites: [100_000, 100_000, 100_000, 100_000, 100_000],
-        },
-      });
-      childServerMap.set(b.server.id, b);
-      const c = childServerFactory({
-        state: {
-          ...defaultServerState(),
-          socketWrites: [100_000, 100_000, 100_000, 100_000, 100_000],
-        },
-      });
-      childServerMap.set(c.server.id, c);
-
-      const outcome = shouldSpawnNewServer();
-
-      expect(outcome).toBeTruthy();
-    });
-
-    it("spawns new server if one server has average socket load above critical mass", () => {
-      const a = childServerFactory({
-        state: {
-          ...defaultServerState(),
-          socketWrites: [100_000, 80_000, 110_000, 50_000, 60_000],
-        },
-      });
-      childServerMap.set(a.server.id, a);
-
-      const outcome = shouldSpawnNewServer();
-
-      expect(outcome).toBeTruthy();
-    });
-  });
 });
diff --git a/package-lock.json b/package-lock.json
index 3e013a7..74e69dd 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -404,7 +404,6 @@
       "resolved": "https://registry.npmjs.org/@types/node/-/node-25.5.0.tgz",
       "integrity": "sha512-jp2P3tQMSxWugkCUKLRPVUpGaL5MVFwF8RDuSRztfwgN1wmqJeMSbKlnEtQqU8UrhTmzEmZdu2I6v2dpp7XIxw==",
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "undici-types": "~7.18.0"
       }
@@ -1314,7 +1313,6 @@
       "resolved": "https://registry.npmjs.org/picomatch/-/picomatch-4.0.3.tgz",
       "integrity": "sha512-5gTmgEY/sqK6gFXLIsQNH19lWb4ebPDLA4SdLP7dsWkIXHWlG66oPuVvXSGFPppYZz8ZDZq0dYYrbHfBCVUb1Q==",
       "license": "MIT",
-      "peer": true,
       "engines": {
         "node": ">=12"
       },
@@ -1589,7 +1587,6 @@
       "resolved": "https://registry.npmjs.org/vite/-/vite-8.0.0.tgz",
       "integrity": "sha512-fPGaRNj9Zytaf8LEiBhY7Z6ijnFKdzU/+mL8EFBaKr7Vw1/FWcTBAMW0wLPJAGMPX38ZPVCVgLceWiEqeoqL2Q==",
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "@oxc-project/runtime": "0.115.0",
         "lightningcss": "^1.32.0",

From 5c35a57261434e1f27440609f82ca64318b88f2a Mon Sep 17 00:00:00 2001
From: ryan <ryanennns@gmail.com>
Date: Sat, 21 Mar 2026 11:04:16 -0400
Subject: [PATCH 02/32] oh my god it was this the whole time

---
 chat-server/index.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/chat-server/index.ts b/chat-server/index.ts
index 3110096..84c92d3 100644
--- a/chat-server/index.ts
+++ b/chat-server/index.ts
@@ -14,7 +14,7 @@ import {
   serversEventLoopTimeoutKey,
   serversHeartbeatKey,
   serversSocketWritesPerSecondKey,
-  WebSocketMessage,
+  type WebSocketMessage,
 } from "@chat/shared";
 import {
   ClientSocket,

From e8804d0fea5f16636bd94038225ff9092f79edff Mon Sep 17 00:00:00 2001
From: ryan <ryanennns@gmail.com>
Date: Sat, 21 Mar 2026 11:04:27 -0400
Subject: [PATCH 03/32] try and surface errors

---
 load-balancer/src/utils.ts | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

diff --git a/load-balancer/src/utils.ts b/load-balancer/src/utils.ts
index d7e5be3..d24a5b1 100644
--- a/load-balancer/src/utils.ts
+++ b/load-balancer/src/utils.ts
@@ -73,6 +73,10 @@ export const spawnServer = async () => {
   if (output) {
     childServerMap.set(output.server.id, output);
   }
+
+  if (!output) {
+    debugLog("error; unable to spawn server");
+  }
 };
 
 export interface ChildProcess {
@@ -96,11 +100,22 @@ export const websocketServerFactory = async (
     },
   );
 
-  const args = [path.resolve("../chat-server/dist/chat-server/index.js")];
+  const args = [
+    "--experimental-transform-types",
+    path.resolve("../chat-server/dist/chat-server/index.js"),
+  ];
   args.push(`--id=${id}`);
 
   const child = spawn(process.execPath, args);
 
+  child.on("error", (e) => debugLog(`child process error: ${e.message}`));
+  child.on("exit", (code, signal) =>
+    debugLog(`child exited with code=${code} signal=${signal}`),
+  );
+  child.stderr.on("data", (chunk) =>
+    debugLog(`child stderr: ${chunk.toString().trim()}`),
+  );
+
   const timeoutMs = 5_000;
   const now = Date.now();
   const poll = async () => {

From 93d2c379864677c98d80ee2452ac8627bcf7fda7 Mon Sep 17 00:00:00 2001
From: ryan <ryanennns@gmail.com>
Date: Sat, 21 Mar 2026 11:35:30 -0400
Subject: [PATCH 04/32] remove offloading logic

---
 chat-server/index.ts         | 52 ------------------------------------
 chat-server/src/state.ts     |  3 ---
 chat-server/src/utils.ts     |  6 +----
 load-balancer/terminal-ui.ts |  3 ++-
 package-lock.json            | 16 +++++++++++
 package.json                 |  4 ++-
 6 files changed, 22 insertions(+), 62 deletions(-)

diff --git a/chat-server/index.ts b/chat-server/index.ts
index 84c92d3..6c71f98 100644
--- a/chat-server/index.ts
+++ b/chat-server/index.ts
@@ -18,13 +18,9 @@ import {
 } from "@chat/shared";
 import {
   ClientSocket,
-  EVENTLOOP_TIMEOUT_THRESHOLD_MS,
   flushRoom,
-  redistributeBy,
   redistributeListener,
-  REQUEST_HELP_EVERY_MS,
   Room,
-  setRedistributeBy,
 } from "./src/utils.js";
 import {
   chatRoomCount,
@@ -33,8 +29,6 @@ import {
   decrementClientCount,
   incrementChatCount,
   incrementClientCount,
-  notTakingNewConnections,
-  setNotTakingNewConnections,
 } from "./src/state.js";
 
 const redisClient = createClient();
@@ -80,14 +74,7 @@ void addSelfToRedis();
 
 const rooms: Map<string, Room> = new Map();
 
-setNotTakingNewConnections(false);
 wss.on("connection", async (socket) => {
-  if (notTakingNewConnections) {
-    socket.close(1);
-
-    return;
-  }
-
   const client = socket as ClientSocket;
   client.id = v4();
 
@@ -173,47 +160,8 @@ const updateMetrics = () => {
   });
 };
 
-const offload = () => {
-  if (socketWritesThisSecond > 75_000) {
-    const multi = Math.min(socketWritesThisSecond / 150_000 / 2, 0.5);
-    void redisClient.publish(
-      "message",
-      JSON.stringify({ message: `nuking ${clientCount * multi}`, serverId }),
-    );
-    setRedistributeBy(redistributeBy + clientCount * multi);
-  }
-};
-
-let lastRequestedHelp = 0;
 const lastFiveTimeoutValues = new Array(5).fill(0);
-const updateTimeoutNumbers = async (timeout: number) => {
-  const shouldPanic = () => {
-    return (
-      lastFiveTimeoutValues.reduce((a, b) => a + b) /
-        lastFiveTimeoutValues.length >
-        EVENTLOOP_TIMEOUT_THRESHOLD_MS &&
-      Date.now() - lastRequestedHelp > REQUEST_HELP_EVERY_MS
-    );
-  };
-
-  lastFiveTimeoutValues.shift();
-  lastFiveTimeoutValues.push(timeout);
-  if (shouldPanic()) {
-    lastRequestedHelp = Date.now();
-    debugLog("event loop is blocking! timeout: " + timeout);
-    void redisClient.publish("panic", JSON.stringify({ serverId, timeout }));
-  }
-};
-
-setInterval(() => {
-  setNotTakingNewConnections(false);
-}, 1_500);
 setInterval(updateMetrics, 1000);
-setInterval(offload, 500);
-setInterval(() => {
-  const start = performance.now();
-  setImmediate(() => void updateTimeoutNumbers(performance.now() - start));
-}, 1000);
 
 const registerSocket = async (
   registrationMessage: WebSocketMessage<RegistrationPayload>,
diff --git a/chat-server/src/state.ts b/chat-server/src/state.ts
index 9dfed02..e651440 100644
--- a/chat-server/src/state.ts
+++ b/chat-server/src/state.ts
@@ -1,9 +1,6 @@
 export let chatRoomCount = 0;
 export let clientCount = 0;
-export let notTakingNewConnections = false;
 export const incrementChatCount = () => chatRoomCount++;
 export const decrementChatCount = () => chatRoomCount--;
 export const incrementClientCount = () => clientCount++;
 export const decrementClientCount = () => clientCount--;
-export const setNotTakingNewConnections = (b: boolean) =>
-  (notTakingNewConnections = b);
diff --git a/chat-server/src/utils.ts b/chat-server/src/utils.ts
index 77b57ce..eec814d 100644
--- a/chat-server/src/utils.ts
+++ b/chat-server/src/utils.ts
@@ -49,11 +49,7 @@ export interface Room {
 }
 
 export const redistributeListener = (message: string) => {
-  // redistributeBy = Math.floor(
-  //   Math.max(Number(message) * REDISTRIBUTE_BY_FACTOR, 1),
-  // );
-  // setNotTakingNewConnections(true);
-  debugLog(`over by ${message}; nuking ${redistributeBy} clients`);
+  redistributeBy = Math.floor(Math.max(Number(message) * 0.15, 1));
 };
 
 export const flushRoom = (room: Room, callback: () => void = () => {}) => {
diff --git a/load-balancer/terminal-ui.ts b/load-balancer/terminal-ui.ts
index 2ce041f..54ead7b 100644
--- a/load-balancer/terminal-ui.ts
+++ b/load-balancer/terminal-ui.ts
@@ -53,7 +53,8 @@ const timestamp = () =>
 const formatNumber = (value: number) => value.toFixed(2);
 const formatNumberArray = (values: number[]) =>
   values
-    .slice(0, MAX_RENDERED_ARRAY_ITEMS)
+    .slice(values.length - 10, values.length)
+    .reverse()
     .map((value) => Number(formatNumber(value)));
 const formatServerJson = (value: unknown) =>
   JSON.stringify(value, null, 2)
diff --git a/package-lock.json b/package-lock.json
index 74e69dd..657fa48 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -7,6 +7,7 @@
       "name": "chat-workspace",
       "dependencies": {
         "@types/supertest": "^7.2.0",
+        "prettier": "^3.8.1",
         "supertest": "^7.2.2",
         "vitest": "^4.1.0"
       }
@@ -1348,6 +1349,21 @@
         "node": "^10 || ^12 || >=14"
       }
     },
+    "node_modules/prettier": {
+      "version": "3.8.1",
+      "resolved": "https://registry.npmjs.org/prettier/-/prettier-3.8.1.tgz",
+      "integrity": "sha512-UOnG6LftzbdaHZcKoPFtOcCKztrQ57WkHDeRD9t/PTQtmT0NHSeWWepj6pS0z/N7+08BHFDQVUrfmfMRcZwbMg==",
+      "license": "MIT",
+      "bin": {
+        "prettier": "bin/prettier.cjs"
+      },
+      "engines": {
+        "node": ">=14"
+      },
+      "funding": {
+        "url": "https://github.com/prettier/prettier?sponsor=1"
+      }
+    },
     "node_modules/qs": {
       "version": "6.15.0",
       "resolved": "https://registry.npmjs.org/qs/-/qs-6.15.0.tgz",
diff --git a/package.json b/package.json
index f8a7992..554d1e1 100644
--- a/package.json
+++ b/package.json
@@ -3,10 +3,12 @@
   "private": true,
   "dependencies": {
     "@types/supertest": "^7.2.0",
+    "prettier": "^3.8.1",
     "supertest": "^7.2.2",
     "vitest": "^4.1.0"
   },
   "scripts": {
-    "test": "vitest --run"
+    "test": "vitest --run",
+    "prettier": "prettier --write ."
   }
 }

From 6872f4bc0c1c9975ac388da9e979ea81c349e395 Mon Sep 17 00:00:00 2001
From: ryan <ryanennns@gmail.com>
Date: Sat, 21 Mar 2026 11:53:08 -0400
Subject: [PATCH 05/32] fix timeout value updates

---
 chat-server/index.ts | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/chat-server/index.ts b/chat-server/index.ts
index 6c71f98..38317cb 100644
--- a/chat-server/index.ts
+++ b/chat-server/index.ts
@@ -162,7 +162,13 @@ const updateMetrics = () => {
 
 const lastFiveTimeoutValues = new Array(5).fill(0);
 setInterval(updateMetrics, 1000);
-
+setInterval(() => {
+  const start = performance.now();
+  setImmediate(() => {
+    lastFiveTimeoutValues.shift();
+    lastFiveTimeoutValues.push(performance.now() - start);
+  });
+}, 1000);
 const registerSocket = async (
   registrationMessage: WebSocketMessage<RegistrationPayload>,
   socket: ClientSocket,

From 0757b8834b4ff9f24966202b574168b1b41820f3 Mon Sep 17 00:00:00 2001
From: ryan <ryanennns@gmail.com>
Date: Sat, 21 Mar 2026 12:09:41 -0400
Subject: [PATCH 06/32] numeric list

---
 packages/shared/src/index.ts | 34 ++++++++++++++++++++++++----------
 1 file changed, 24 insertions(+), 10 deletions(-)

diff --git a/packages/shared/src/index.ts b/packages/shared/src/index.ts
index 9a67dad..f5b8110 100644
--- a/packages/shared/src/index.ts
+++ b/packages/shared/src/index.ts
@@ -5,17 +5,31 @@ export interface Server {
   url: string;
 }
 
+class NumericList extends Array<number> {
+  max() {
+    return Math.max(...this);
+  }
+
+  min() {
+    return Math.min(...this);
+  }
+
+  average() {
+    return this.reduce((a, b) => a + b) / this.length;
+  }
+}
+
 export interface ServerState {
-  clients: Array<number>;
-  chatRooms: Array<number>;
-  socketWrites: Array<number>;
-  timeouts: Array<number>;
+  clients: NumericList;
+  chatRooms: NumericList;
+  socketWrites: NumericList;
+  timeouts: NumericList;
 }
-export const defaultServerState = () => ({
-  clients: Array.from({ length: 100 }).map(() => 0),
-  chatRooms: Array.from({ length: 100 }).map(() => 0),
-  socketWrites: Array.from({ length: 100 }).map(() => 0),
-  timeouts: Array.from({ length: 100 }).map(() => 0),
+export const defaultServerState = (): ServerState => ({
+  clients: new NumericList(...Array.from({ length: 100 }).map(() => 0)),
+  chatRooms: new NumericList(...Array.from({ length: 100 }).map(() => 0)),
+  socketWrites: new NumericList(...Array.from({ length: 100 }).map(() => 0)),
+  timeouts: new NumericList(...Array.from({ length: 100 }).map(() => 0)),
 });
 
 export const redistributeChannel = "wss-redistribute";
@@ -110,7 +124,7 @@ export const getLowestLoadServers = async (
   const ids = await redisClient.zRange(
     serversSocketWritesPerSecondKey,
     0,
-    (count ?? 10) - 1,
+    (count ?? 100) - 1,
   );
 
   const results: Array<{ id: string; url: string }> = [];

From bbf665a0653c87a3c9849317e05a962100aaa4f1 Mon Sep 17 00:00:00 2001
From: ryan <ryanennns@gmail.com>
Date: Sat, 21 Mar 2026 12:51:20 -0400
Subject: [PATCH 07/32] track pps

---
 load-balancer/src/intervals.ts | 6 ++++++
 packages/shared/src/index.ts   | 2 +-
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/load-balancer/src/intervals.ts b/load-balancer/src/intervals.ts
index 2eebc7a..4114b2e 100644
--- a/load-balancer/src/intervals.ts
+++ b/load-balancer/src/intervals.ts
@@ -6,6 +6,7 @@ import {
   serverBlacklist,
 } from "./utils.ts";
 import {
+  NumericList,
   removeServerFromRedis,
   serversChatRoomsCountKey,
   serversClientCountKey,
@@ -118,12 +119,17 @@ export const healthChecks = async () => {
   updatePps();
 };
 
+export const ppsHistory: NumericList = new NumericList(
+  ...Array.from({ length: 100 }).map(() => 0),
+);
 export let pps = 0;
 export let provisionsThisSecond = 0;
 export const incrProvisionsThisSecond = () => provisionsThisSecond++;
 const updatePps = () => {
   pps = provisionsThisSecond;
   runtimeState.pps = pps;
+  ppsHistory.shift();
+  ppsHistory.push(pps);
   provisionsThisSecond = 0;
 };
 
diff --git a/packages/shared/src/index.ts b/packages/shared/src/index.ts
index f5b8110..ab8bb25 100644
--- a/packages/shared/src/index.ts
+++ b/packages/shared/src/index.ts
@@ -5,7 +5,7 @@ export interface Server {
   url: string;
 }
 
-class NumericList extends Array<number> {
+export class NumericList extends Array<number> {
   max() {
     return Math.max(...this);
   }

From 8d57881498d308a7fe8a07c7667caf12c5140eb4 Mon Sep 17 00:00:00 2001
From: ryan <ryanennns@gmail.com>
Date: Sat, 21 Mar 2026 12:51:39 -0400
Subject: [PATCH 08/32] forEach --> for of

---
 load-balancer/src/utils.ts | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/load-balancer/src/utils.ts b/load-balancer/src/utils.ts
index d24a5b1..e158f83 100644
--- a/load-balancer/src/utils.ts
+++ b/load-balancer/src/utils.ts
@@ -48,10 +48,10 @@ export const shutdown = async () => {
     terminalUi.destroy();
     await redisClient.quit();
     await subscriptionClient.quit();
-    childServerMap.forEach((server: ChildProcess, id: string) => {
-      void removeServerFromRedis(id);
-      server.process.kill(1);
-    });
+    for (let [id, childServerMapElement] of childServerMap) {
+      await removeServerFromRedis(id);
+      childServerMapElement.process.kill(1);
+    }
   } catch {
     redisClient.destroy();
     subscriptionClient.destroy();
@@ -72,10 +72,14 @@ export const spawnServer = async () => {
 
   if (output) {
     childServerMap.set(output.server.id, output);
+
+    return output.server;
   }
 
   if (!output) {
     debugLog("error; unable to spawn server");
+
+    return undefined;
   }
 };
 

From 83d052e35712c0fd933815ede111655bbab8cbeb Mon Sep 17 00:00:00 2001
From: ryan <ryanennns@gmail.com>
Date: Sat, 21 Mar 2026 12:51:51 -0400
Subject: [PATCH 09/32] basic load balancing logic

---
 .../src/controllers/servers.provision.ts      | 41 +++++++++++++++++--
 load-balancer/src/state.ts                    |  3 ++
 2 files changed, 41 insertions(+), 3 deletions(-)
 create mode 100644 load-balancer/src/state.ts

diff --git a/load-balancer/src/controllers/servers.provision.ts b/load-balancer/src/controllers/servers.provision.ts
index 92ed5e1..abec4ba 100644
--- a/load-balancer/src/controllers/servers.provision.ts
+++ b/load-balancer/src/controllers/servers.provision.ts
@@ -1,14 +1,49 @@
-import { runtimeState } from "../utils.ts";
+import {
+  type ChildProcess,
+  childServerMap,
+  runtimeState,
+  spawnServer,
+} from "../utils.ts";
 import express from "express";
 import { incrProvisionsThisSecond } from "../intervals.ts";
-import { getLowestLoadServer } from "@chat/shared";
+import { type Server } from "@chat/shared";
+import { lastSpawnedServer, setLastSpawnedServer } from "../state.ts";
+
+const MAX_SOCKET_SPIKE_LOAD = 75_000;
+const serverAtMaxCapacity = (server: ChildProcess): boolean => {
+  return server.state.socketWrites.max() > MAX_SOCKET_SPIKE_LOAD;
+};
+const shouldSpawnServer = () => Date.now() - lastSpawnedServer > 10_000;
+export const getBestCandidateServer = async (): Promise<Server | undefined> => {
+  const servers = [...childServerMap.values()];
+
+  let candidate: ChildProcess | undefined = undefined;
+  servers.forEach((server) => {
+    if (serverAtMaxCapacity(server)) {
+      return;
+    }
+
+    if (true /* some other conditions... */) {
+      // early return
+    }
+
+    candidate = server;
+  });
+
+  if (!candidate && shouldSpawnServer()) {
+    setLastSpawnedServer(Date.now());
+    return await spawnServer();
+  }
+
+  return (candidate as ChildProcess | undefined)?.server;
+};
 
 export const provisionServer = async (
   req: express.Request,
   res: express.Response,
 ) => {
   incrProvisionsThisSecond();
-  let server = await getLowestLoadServer();
+  let server = await getBestCandidateServer();
 
   if (!server) {
     res.sendStatus(404);
diff --git a/load-balancer/src/state.ts b/load-balancer/src/state.ts
new file mode 100644
index 0000000..e3ffea4
--- /dev/null
+++ b/load-balancer/src/state.ts
@@ -0,0 +1,3 @@
+export let lastSpawnedServer = Date.now();
+export const setLastSpawnedServer = (time: number) =>
+  (lastSpawnedServer = time);

From 0d295f2d10bd48d47d9ef9176ad05243fba3098d Mon Sep 17 00:00:00 2001
From: ryan <ryanennns@gmail.com>
Date: Sun, 22 Mar 2026 10:14:27 -0400
Subject: [PATCH 10/32] delete redundant file

---
 chat-client/monitor.ts        | 349 ----------------------------------
 chat-client/package-lock.json |  12 --
 2 files changed, 361 deletions(-)
 delete mode 100644 chat-client/monitor.ts

diff --git a/chat-client/monitor.ts b/chat-client/monitor.ts
deleted file mode 100644
index a6b001c..0000000
--- a/chat-client/monitor.ts
+++ /dev/null
@@ -1,349 +0,0 @@
-import { createClient } from "redis";
-import blessed from "blessed";
-import { format } from "node:util";
-
-// Redis keys (mirrors @chat/shared constants)
-const serversClientCountKey = "servers:clients";
-const serversChatRoomsCountKey = "servers:chats";
-const serversHeartbeatKey = "servers:heartbeat";
-const serversSocketWritesPerSecondKey = "servers:mps";
-const serversEventLoopTimeoutKey = "servers:event-loop";
-const redisServerKeyFactory = (id: string) => `server:${id}`;
-
-const POLL_INTERVAL_MS = 1000;
-const MAX_SERVER_LINES = 20;
-const UUID_DISPLAY_LEN = 8;
-
-const trim = (id: string) => id.slice(0, UUID_DISPLAY_LEN);
-const timestamp = () =>
-  new Date().toLocaleTimeString("en-US", { hour12: false });
-const fmt = (n: number, decimals = 2) => n.toFixed(decimals);
-const fmtAge = (ms: number) => {
-  if (ms < 1000) return `${ms}ms`;
-  if (ms < 60_000) return `${(ms / 1000).toFixed(1)}s`;
-  return `${Math.floor(ms / 60_000)}m${Math.floor((ms % 60_000) / 1000)}s`;
-};
-const fmtDuration = (startedAt: number) => {
-  const s = Math.max(0, Math.floor((Date.now() - startedAt) / 1000));
-  const h = Math.floor(s / 3600);
-  const m = Math.floor((s % 3600) / 60);
-  const sec = s % 60;
-  return [h, m, sec].map((v) => v.toString().padStart(2, "0")).join(":");
-};
-
-interface ServerMetrics {
-  id: string;
-  url: string;
-  clients: number;
-  chatRooms: number;
-  mps: number;
-  eventLoopTimeout: number;
-  heartbeatAgeMs: number;
-}
-
-interface Snapshot {
-  servers: ServerMetrics[];
-  totalClients: number;
-  totalChatRooms: number;
-  totalMps: number;
-  pollCount: number;
-  lastPolledAt: string;
-  redisStatus: "connected" | "connecting" | "error";
-}
-
-async function pollRedis(
-  client: ReturnType<typeof createClient>,
-): Promise<ServerMetrics[]> {
-  const now = Date.now();
-
-  const [clients, chatRooms, heartbeats, mps, eventLoop] = await Promise.all([
-    client.zRangeWithScores(serversClientCountKey, 0, -1),
-    client.zRangeWithScores(serversChatRoomsCountKey, 0, -1),
-    client.zRangeWithScores(serversHeartbeatKey, 0, -1),
-    client.zRangeWithScores(serversSocketWritesPerSecondKey, 0, -1),
-    client.zRangeWithScores(serversEventLoopTimeoutKey, 0, -1),
-  ]);
-
-  const serverIds = new Set([
-    ...clients.map((e) => e.value),
-    ...heartbeats.map((e) => e.value),
-    ...mps.map((e) => e.value),
-  ]);
-
-  const servers: ServerMetrics[] = [];
-  for (const id of serverIds) {
-    const url =
-      (await client.hGet(redisServerKeyFactory(id), "url")) ?? "unknown";
-
-    servers.push({
-      id,
-      url,
-      clients: clients.find((e) => e.value === id)?.score ?? 0,
-      chatRooms: chatRooms.find((e) => e.value === id)?.score ?? 0,
-      mps: mps.find((e) => e.value === id)?.score ?? 0,
-      eventLoopTimeout: eventLoop.find((e) => e.value === id)?.score ?? 0,
-      heartbeatAgeMs:
-        now - (heartbeats.find((e) => e.value === id)?.score ?? 0),
-    });
-  }
-
-  return servers;
-}
-
-function heartbeatColor(ageMs: number): string {
-  if (ageMs < 2000) return "{green-fg}";
-  if (ageMs < 5000) return "{yellow-fg}";
-  return "{red-fg}";
-}
-
-function formatServerBlock(s: ServerMetrics): string {
-  const hbColor = heartbeatColor(s.heartbeatAgeMs);
-  const hbReset = "{/}";
-  return [
-    `  id           ${trim(s.id)}`,
-    `  url          ${s.url}`,
-    `  clients      ${s.clients}`,
-    `  chat rooms   ${s.chatRooms}`,
-    `  mps          ${fmt(s.mps)}`,
-    `  event loop   ${fmt(s.eventLoopTimeout)}ms`,
-    `  heartbeat    ${hbColor}${fmtAge(s.heartbeatAgeMs)} ago${hbReset}`,
-  ].join("\n");
-}
-
-class RedisMonitorUi {
-  private readonly startedAt = Date.now();
-  private readonly originalConsole = {
-    error: console.error.bind(console),
-    log: console.log.bind(console),
-    warn: console.warn.bind(console),
-  };
-
-  private screen: blessed.Widgets.Screen;
-  private headerBox: blessed.Widgets.BoxElement;
-  private metricsBox: blessed.Widgets.BoxElement;
-  private serversBox: blessed.Widgets.BoxElement;
-  private logBox: blessed.Widgets.Log;
-
-  private snapshot: Snapshot = {
-    servers: [],
-    totalClients: 0,
-    totalChatRooms: 0,
-    totalMps: 0,
-    pollCount: 0,
-    lastPolledAt: "-",
-    redisStatus: "connecting",
-  };
-
-  constructor() {
-    this.screen = blessed.screen({
-      smartCSR: true,
-      title: "redis-monitor",
-      dockBorders: true,
-      fullUnicode: false,
-    });
-
-    this.headerBox = blessed.box({
-      parent: this.screen,
-      top: 0,
-      left: 0,
-      width: "100%",
-      height: 4,
-      tags: true,
-      border: "line",
-      style: { border: { fg: "cyan" } },
-    });
-
-    this.metricsBox = blessed.box({
-      parent: this.screen,
-      top: 4,
-      left: 0,
-      width: "50%",
-      height: 11,
-      tags: true,
-      border: "line",
-      label: " totals ",
-      style: { border: { fg: "green" } },
-    });
-
-    this.serversBox = blessed.box({
-      parent: this.screen,
-      top: 4,
-      left: "50%",
-      width: "50%",
-      height: "100%-4",
-      tags: true,
-      border: "line",
-      label: " servers ",
-      scrollable: true,
-      alwaysScroll: true,
-      mouse: true,
-      keys: true,
-      vi: true,
-      scrollbar: { ch: " " },
-      style: { border: { fg: "yellow" } },
-    });
-
-    this.logBox = blessed.log({
-      parent: this.screen,
-      top: 15,
-      left: 0,
-      width: "50%",
-      height: "100%-15",
-      tags: false,
-      border: "line",
-      label: " events ",
-      scrollable: true,
-      alwaysScroll: true,
-      mouse: true,
-      keys: true,
-      vi: true,
-      scrollbar: { ch: " " },
-      style: { border: { fg: "magenta" } },
-    });
-
-    this.screen.key(["C-c", "q", "escape"], () => {
-      process.kill(process.pid, "SIGINT");
-    });
-    this.screen.key(["pageup"], () => this.logBox.scroll(-5));
-    this.screen.key(["pagedown"], () => this.logBox.scroll(5));
-    this.screen.key(["S-pageup"], () => this.serversBox.scroll(-5));
-    this.screen.key(["S-pagedown"], () => this.serversBox.scroll(5));
-
-    this.patchConsole();
-    this.render();
-  }
-
-  setSnapshot(snapshot: Snapshot) {
-    this.snapshot = snapshot;
-    this.render();
-  }
-
-  destroy() {
-    this.restoreConsole();
-    try {
-      this.screen.destroy();
-    } catch {
-      // ignore
-    }
-  }
-
-  private patchConsole() {
-    console.log = (...args: unknown[]) => this.writeLog("log", args);
-    console.warn = (...args: unknown[]) => this.writeLog("warn", args);
-    console.error = (...args: unknown[]) => this.writeLog("error", args);
-  }
-
-  private restoreConsole() {
-    console.log = this.originalConsole.log;
-    console.warn = this.originalConsole.warn;
-    console.error = this.originalConsole.error;
-  }
-
-  private writeLog(level: "log" | "warn" | "error", args: unknown[]) {
-    const line = `[${timestamp()}] ${level.toUpperCase()} ${format(...args)}`;
-    this.logBox.log(line);
-    this.render();
-  }
-
-  private render() {
-    const { snapshot } = this;
-    const statusColor =
-      snapshot.redisStatus === "connected"
-        ? "{green-fg}"
-        : snapshot.redisStatus === "connecting"
-          ? "{yellow-fg}"
-          : "{red-fg}";
-
-    this.headerBox.setContent(
-      [
-        `{bold}redis-monitor{/bold}  ${statusColor}${snapshot.redisStatus}{/}`,
-        `uptime ${fmtDuration(this.startedAt)}  polls ${snapshot.pollCount}  last ${snapshot.lastPolledAt}`,
-        `watching: ${[serversClientCountKey, serversChatRoomsCountKey, serversHeartbeatKey, serversSocketWritesPerSecondKey, serversEventLoopTimeoutKey].join("  ")}`,
-      ].join("\n"),
-    );
-
-    this.metricsBox.setContent(
-      [
-        `total servers     ${snapshot.servers.length}`,
-        `total clients     ${snapshot.totalClients}`,
-        `total chat rooms  ${snapshot.totalChatRooms}`,
-        `total mps         ${fmt(snapshot.totalMps)}`,
-        ``,
-        `healthy           ${snapshot.servers.filter((s) => s.heartbeatAgeMs < 2000).length}`,
-        `degraded          ${snapshot.servers.filter((s) => s.heartbeatAgeMs >= 2000 && s.heartbeatAgeMs < 5000).length}`,
-        `dead              ${snapshot.servers.filter((s) => s.heartbeatAgeMs >= 5000).length}`,
-      ].join("\n"),
-    );
-
-    const serverBlocks = snapshot.servers
-      .sort((a, b) => a.id.localeCompare(b.id))
-      .slice(0, MAX_SERVER_LINES)
-      .map(formatServerBlock);
-
-    this.serversBox.setContent(
-      serverBlocks.length > 0
-        ? serverBlocks.join("\n{gray-fg}──────────────────────────{/}\n")
-        : "{gray-fg}no servers in redis{/}",
-    );
-
-    this.screen.render();
-  }
-}
-
-async function main() {
-  const client = createClient();
-  const ui = new RedisMonitorUi();
-
-  let pollCount = 0;
-
-  const poll = async () => {
-    try {
-      const servers = await pollRedis(client);
-      pollCount++;
-      ui.setSnapshot({
-        servers,
-        totalClients: servers.reduce((s, sv) => s + sv.clients, 0),
-        totalChatRooms: servers.reduce((s, sv) => s + sv.chatRooms, 0),
-        totalMps: servers.reduce((s, sv) => s + sv.mps, 0),
-        pollCount,
-        lastPolledAt: timestamp(),
-        redisStatus: "connected",
-      });
-    } catch (err) {
-      console.error("poll failed:", err);
-      ui.setSnapshot({
-        servers: [],
-        totalClients: 0,
-        totalChatRooms: 0,
-        totalMps: 0,
-        pollCount,
-        lastPolledAt: timestamp(),
-        redisStatus: "error",
-      });
-    }
-  };
-
-  const shutdown = async () => {
-    ui.destroy();
-    await client.quit();
-    process.exit(0);
-  };
-
-  process.on("SIGINT", shutdown);
-  process.on("SIGTERM", shutdown);
-
-  try {
-    await client.connect();
-    console.log("redis connected");
-  } catch (err) {
-    console.error("redis connect failed:", err);
-  }
-
-  await poll();
-  setInterval(poll, POLL_INTERVAL_MS);
-}
-
-main().catch((err) => {
-  console.error(err);
-  process.exit(1);
-});
diff --git a/chat-client/package-lock.json b/chat-client/package-lock.json
index a88ed4c..c8c66e2 100644
--- a/chat-client/package-lock.json
+++ b/chat-client/package-lock.json
@@ -61,7 +61,6 @@
       "integrity": "sha512-CGOfOJqWjg2qW/Mb6zNsDm+u5vFQ8DxXfbM09z69p5Z6+mE1ikP2jUXw+j42Pf1XTYED2Rni5f95npYeuwMDQA==",
       "dev": true,
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "@babel/code-frame": "^7.29.0",
         "@babel/generator": "^7.29.0",
@@ -618,7 +617,6 @@
       "resolved": "https://registry.npmjs.org/@redis/client/-/client-5.11.0.tgz",
       "integrity": "sha512-GHoprlNQD51Xq2Ztd94HHV94MdFZQ3CVrpA04Fz8MVoHM0B7SlbmPEVIjwTbcv58z8QyjnrOuikS0rWF03k5dQ==",
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "cluster-key-slot": "1.1.2"
       },
@@ -981,7 +979,6 @@
       "integrity": "sha512-ilcTH/UniCkMdtexkoCN0bI7pMcJDvmQFPvuPvmEaYA/NSfFTAgdUSLAoVjaRJm7+6PvcM+q1zYOwS4wTYMF9w==",
       "dev": true,
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "csstype": "^3.2.2"
       }
@@ -1041,7 +1038,6 @@
       "integrity": "sha512-XZzOmihLIr8AD1b9hL9ccNMzEMWt/dE2u7NyTY9jJG6YNiNthaD5XtUHVF2uCXZ15ng+z2hT3MVuxnUYhq6k1g==",
       "dev": true,
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "@typescript-eslint/scope-manager": "8.57.0",
         "@typescript-eslint/types": "8.57.0",
@@ -1324,7 +1320,6 @@
       "integrity": "sha512-UVJyE9MttOsBQIDKw1skb9nAwQuR5wuGD3+82K6JgJlm/Y+KI92oNsMNGZCYdDsVtRHSak0pcV5Dno5+4jh9sw==",
       "dev": true,
       "license": "MIT",
-      "peer": true,
       "bin": {
         "acorn": "bin/acorn"
       },
@@ -1445,7 +1440,6 @@
         }
       ],
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "baseline-browser-mapping": "^2.9.0",
         "caniuse-lite": "^1.0.30001759",
@@ -1644,7 +1638,6 @@
       "integrity": "sha512-XoMjdBOwe/esVgEvLmNsD3IRHkm7fbKIUGvrleloJXUZgDHig2IPWNniv+GwjyJXzuNqVjlr5+4yVUZjycJwfQ==",
       "dev": true,
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "@eslint-community/eslint-utils": "^4.8.0",
         "@eslint-community/regexpp": "^4.12.1",
@@ -2592,7 +2585,6 @@
       "integrity": "sha512-5gTmgEY/sqK6gFXLIsQNH19lWb4ebPDLA4SdLP7dsWkIXHWlG66oPuVvXSGFPppYZz8ZDZq0dYYrbHfBCVUb1Q==",
       "dev": true,
       "license": "MIT",
-      "peer": true,
       "engines": {
         "node": ">=12"
       },
@@ -2669,7 +2661,6 @@
       "resolved": "https://registry.npmjs.org/react/-/react-19.2.4.tgz",
       "integrity": "sha512-9nfp2hYpCwOjAN+8TZFGhtWEwgvWHXqESH8qT89AT/lWklpLON22Lc8pEtnpsZz7VmawabSU0gCjnj8aC0euHQ==",
       "license": "MIT",
-      "peer": true,
       "engines": {
         "node": ">=0.10.0"
       }
@@ -2885,7 +2876,6 @@
       "integrity": "sha512-jl1vZzPDinLr9eUt3J/t7V6FgNEw9QjvBPdysz9KfQDD41fQrC2Y4vKQdiaUpFT4bXlb1RHhLpp8wtm6M5TgSw==",
       "dev": true,
       "license": "Apache-2.0",
-      "peer": true,
       "bin": {
         "tsc": "bin/tsc",
         "tsserver": "bin/tsserver"
@@ -2971,7 +2961,6 @@
       "integrity": "sha512-fPGaRNj9Zytaf8LEiBhY7Z6ijnFKdzU/+mL8EFBaKr7Vw1/FWcTBAMW0wLPJAGMPX38ZPVCVgLceWiEqeoqL2Q==",
       "dev": true,
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "@oxc-project/runtime": "0.115.0",
         "lightningcss": "^1.32.0",
@@ -3097,7 +3086,6 @@
       "integrity": "sha512-rftlrkhHZOcjDwkGlnUtZZkvaPHCsDATp4pGpuOOMDaTdDDXF91wuVDJoWoPsKX/3YPQ5fHuF3STjcYyKr+Qhg==",
       "dev": true,
       "license": "MIT",
-      "peer": true,
       "funding": {
         "url": "https://github.com/sponsors/colinhacks"
       }

From 21e086ac0d03dbe6c1f6c12055ed0bda09ac549f Mon Sep 17 00:00:00 2001
From: ryan <ryanennns@gmail.com>
Date: Sun, 22 Mar 2026 10:15:07 -0400
Subject: [PATCH 11/32] record total chat messages

---
 chat-server/index.ts         | 2 ++
 packages/shared/src/index.ts | 3 ++-
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/chat-server/index.ts b/chat-server/index.ts
index 38317cb..443d0f5 100644
--- a/chat-server/index.ts
+++ b/chat-server/index.ts
@@ -4,6 +4,7 @@ import { WebSocketServer } from "ws";
 import {
   addServerToRedis,
   ChatPayload,
+  chatRoomTotalMessagesKey,
   debugLog,
   redisRedistributeChannelFactory,
   redisServerKeyFactory,
@@ -214,6 +215,7 @@ const publishChat = async (
     return;
   }
 
+  void redisClient.zIncrBy(chatRoomTotalMessagesKey, 1, socket.chatId);
   await redisClient.publish(socket.chatId, JSON.stringify(message.payload));
 };
 
diff --git a/packages/shared/src/index.ts b/packages/shared/src/index.ts
index ab8bb25..977d90d 100644
--- a/packages/shared/src/index.ts
+++ b/packages/shared/src/index.ts
@@ -36,8 +36,9 @@ export const redistributeChannel = "wss-redistribute";
 export const serversClientCountKey = "servers:clients";
 export const serversChatRoomsCountKey = "servers:chats";
 export const serversHeartbeatKey = "servers:heartbeat";
-export const serversSocketWritesPerSecondKey = "servers:mps";
+export const serversSocketWritesPerSecondKey = "servers:swps";
 export const serversEventLoopTimeoutKey = "servers:event-loop";
+export const chatRoomTotalMessagesKey = "chat-rooms:messages";
 export const redisRedistributeChannelFactory = (serverId: string) =>
   `${serverId}-${redistributeChannel}`;
 export const redisServerKeyFactory = (serverId: string) => `server:${serverId}`;

From 370978d2579605f51d57059c7be7ddd515aa5e93 Mon Sep 17 00:00:00 2001
From: ryan <ryanennns@gmail.com>
Date: Sun, 22 Mar 2026 10:24:21 -0400
Subject: [PATCH 12/32] report chat message totals

---
 chat-client/src/App.css                      |  61 +++++++++-
 chat-client/src/Monitor.tsx                  |  94 ++++++++++------
 chat-client/src/index.css                    | 111 -------------------
 load-balancer/src/controllers/redis.stats.ts |  10 ++
 4 files changed, 128 insertions(+), 148 deletions(-)

diff --git a/chat-client/src/App.css b/chat-client/src/App.css
index bf31290..cd3754c 100644
--- a/chat-client/src/App.css
+++ b/chat-client/src/App.css
@@ -1,12 +1,14 @@
 .app {
   display: grid;
   gap: 0.35rem;
-  padding: 1rem;
+  padding: 1rem 1.25rem;
   align-content: start;
   justify-items: start;
   text-align: left;
   font-family: "SFMono-Regular", "Consolas", "Liberation Mono", monospace;
   min-height: 100vh;
+  width: 100%;
+  box-sizing: border-box;
   background: #111;
   color: #e8e8e8;
 }
@@ -109,6 +111,63 @@
   width: 100%;
 }
 
+.monitor-body {
+  display: grid;
+  grid-template-columns: 1fr 220px;
+  gap: 0.75rem;
+  align-items: start;
+}
+
+.monitor-main {
+  display: grid;
+  gap: 0.75rem;
+}
+
+.monitor-sidebar {
+  display: grid;
+  gap: 0;
+  background: #181818;
+  border: 1px solid #2a2a2a;
+  align-self: start;
+}
+
+.sidebar-title {
+  font-size: 0.7rem;
+  color: #555;
+  letter-spacing: 0.05em;
+  padding: 0.4rem 0.6rem;
+  border-bottom: 1px solid #2a2a2a;
+}
+
+.room-row {
+  display: flex;
+  justify-content: space-between;
+  align-items: baseline;
+  padding: 0.3rem 0.6rem;
+  font-size: 0.8rem;
+  border-bottom: 1px solid #1e1e1e;
+}
+
+.room-row:last-child {
+  border-bottom: none;
+}
+
+.room-name {
+  color: #aaa;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+  flex: 1;
+  min-width: 0;
+}
+
+.room-msgs {
+  color: #3fb950;
+  font-size: 0.75rem;
+  margin-left: 0.5rem;
+  flex-shrink: 0;
+}
+
 .monitor-header {
   display: flex;
   align-items: center;
diff --git a/chat-client/src/Monitor.tsx b/chat-client/src/Monitor.tsx
index 2bd903b..f1a15fe 100644
--- a/chat-client/src/Monitor.tsx
+++ b/chat-client/src/Monitor.tsx
@@ -22,6 +22,7 @@ interface RedisStats {
   ts: number;
   servers: ServerMetrics[];
   totals: { clients: number; chatRooms: number; mps: number };
+  chatRooms: { messageCounts: { value: string; score: number }[] };
 }
 
 const POLL_MS = 1000;
@@ -127,7 +128,7 @@ function ServerCard({ s }: { s: ServerMetrics }) {
           color="#7d9fc5"
         />
         <Graph
-          label="socket writes/s"
+          label="swps"
           current={s.mps}
           data={s.history?.socketWrites ?? []}
           color="#3fb950"
@@ -163,6 +164,9 @@ function Graph({
     <div className="graph">
       <div className="graph-meta">
         <span className="graph-label">{label}</span>
+        <span className="graph-label">
+          avg: {(data.reduce((a, b) => a + b) / data.length).toFixed(3)}
+        </span>
         <span className="graph-current" style={{ color }}>
           {fmtVal(current)}
         </span>
@@ -221,6 +225,10 @@ export function Monitor() {
     };
   }, []);
 
+  const sortedRooms = stats
+    ? [...stats.chatRooms.messageCounts].sort((a, b) => b.score - a.score)
+    : [];
+
   return (
     <div className="monitor">
       <div className="monitor-header">
@@ -234,46 +242,60 @@ export function Monitor() {
       </div>
 
       {stats && (
-        <>
-          <div className="monitor-totals">
-            <Stat label="servers" value={stats.servers.length} />
-            <Stat label="clients" value={stats.totals.clients} />
-            <Stat label="chat rooms" value={stats.totals.chatRooms} />
-            <Stat label="total mps" value={fmt(stats.totals.mps)} />
-            <Stat
-              label="healthy"
-              value={
-                stats.servers.filter((s) => s.heartbeatAgeMs < 2000).length
-              }
-              accent="green"
-            />
-            <Stat
-              label="degraded"
-              value={
-                stats.servers.filter(
-                  (s) => s.heartbeatAgeMs >= 2000 && s.heartbeatAgeMs < 5000,
-                ).length
-              }
-              accent="yellow"
-            />
-            <Stat
-              label="dead"
-              value={
-                stats.servers.filter((s) => s.heartbeatAgeMs >= 5000).length
-              }
-              accent="red"
-            />
+        <div className="monitor-body">
+          <div className="monitor-main">
+            <div className="monitor-totals">
+              <Stat label="servers" value={stats.servers.length} />
+              <Stat label="clients" value={stats.totals.clients} />
+              <Stat label="total mps" value={fmt(stats.totals.mps)} />
+              <Stat
+                label="healthy"
+                value={
+                  stats.servers.filter((s) => s.heartbeatAgeMs < 2000).length
+                }
+                accent="green"
+              />
+              <Stat
+                label="degraded"
+                value={
+                  stats.servers.filter(
+                    (s) => s.heartbeatAgeMs >= 2000 && s.heartbeatAgeMs < 5000,
+                  ).length
+                }
+                accent="yellow"
+              />
+              <Stat
+                label="dead"
+                value={
+                  stats.servers.filter((s) => s.heartbeatAgeMs >= 5000).length
+                }
+                accent="red"
+              />
+            </div>
+
+            <div className="server-cards">
+              {stats.servers.length === 0 && (
+                <p className="monitor-empty">no servers in redis</p>
+              )}
+              {stats.servers.map((s) => (
+                <ServerCard key={s.id} s={s} />
+              ))}
+            </div>
           </div>
 
-          <div className="server-cards">
-            {stats.servers.length === 0 && (
-              <p className="monitor-empty">no servers in redis</p>
+          <div className="monitor-sidebar">
+            <div className="sidebar-title">chat rooms</div>
+            {sortedRooms.length === 0 && (
+              <p className="monitor-empty">no rooms</p>
             )}
-            {stats.servers.map((s) => (
-              <ServerCard key={s.id} s={s} />
+            {sortedRooms.map((room) => (
+              <div key={room.value} className="room-row">
+                <span className="room-name">{room.value}</span>
+                <span className="room-msgs">{room.score}</span>
+              </div>
             ))}
           </div>
-        </>
+        </div>
       )}
 
       {status === "error" && !stats && (
diff --git a/chat-client/src/index.css b/chat-client/src/index.css
index aad5cb1..e69de29 100644
--- a/chat-client/src/index.css
+++ b/chat-client/src/index.css
@@ -1,111 +0,0 @@
-:root {
-  --text: #6b6375;
-  --text-h: #08060d;
-  --bg: #fff;
-  --border: #e5e4e7;
-  --code-bg: #f4f3ec;
-  --accent: #aa3bff;
-  --accent-bg: rgba(170, 59, 255, 0.1);
-  --accent-border: rgba(170, 59, 255, 0.5);
-  --social-bg: rgba(244, 243, 236, 0.5);
-  --shadow:
-    rgba(0, 0, 0, 0.1) 0 10px 15px -3px, rgba(0, 0, 0, 0.05) 0 4px 6px -2px;
-
-  --sans: system-ui, "Segoe UI", Roboto, sans-serif;
-  --heading: system-ui, "Segoe UI", Roboto, sans-serif;
-  --mono: ui-monospace, Consolas, monospace;
-
-  font: 18px/145% var(--sans);
-  letter-spacing: 0.18px;
-  color-scheme: light dark;
-  color: var(--text);
-  background: var(--bg);
-  font-synthesis: none;
-  text-rendering: optimizeLegibility;
-  -webkit-font-smoothing: antialiased;
-  -moz-osx-font-smoothing: grayscale;
-
-  @media (max-width: 1024px) {
-    font-size: 16px;
-  }
-}
-
-@media (prefers-color-scheme: dark) {
-  :root {
-    --text: #9ca3af;
-    --text-h: #f3f4f6;
-    --bg: #16171d;
-    --border: #2e303a;
-    --code-bg: #1f2028;
-    --accent: #c084fc;
-    --accent-bg: rgba(192, 132, 252, 0.15);
-    --accent-border: rgba(192, 132, 252, 0.5);
-    --social-bg: rgba(47, 48, 58, 0.5);
-    --shadow:
-      rgba(0, 0, 0, 0.4) 0 10px 15px -3px, rgba(0, 0, 0, 0.25) 0 4px 6px -2px;
-  }
-
-  #social .button-icon {
-    filter: invert(1) brightness(2);
-  }
-}
-
-#root {
-  width: 1126px;
-  max-width: 100%;
-  margin: 0 auto;
-  text-align: center;
-  border-inline: 1px solid var(--border);
-  min-height: 100svh;
-  display: flex;
-  flex-direction: column;
-  box-sizing: border-box;
-}
-
-body {
-  margin: 0;
-}
-
-h1,
-h2 {
-  font-family: var(--heading);
-  font-weight: 500;
-  color: var(--text-h);
-}
-
-h1 {
-  font-size: 56px;
-  letter-spacing: -1.68px;
-  margin: 32px 0;
-  @media (max-width: 1024px) {
-    font-size: 36px;
-    margin: 20px 0;
-  }
-}
-h2 {
-  font-size: 24px;
-  line-height: 118%;
-  letter-spacing: -0.24px;
-  margin: 0 0 8px;
-  @media (max-width: 1024px) {
-    font-size: 20px;
-  }
-}
-p {
-  margin: 0;
-}
-
-code,
-.counter {
-  font-family: var(--mono);
-  display: inline-flex;
-  border-radius: 4px;
-  color: var(--text-h);
-}
-
-code {
-  font-size: 15px;
-  line-height: 135%;
-  padding: 4px 8px;
-  background: var(--code-bg);
-}
diff --git a/load-balancer/src/controllers/redis.stats.ts b/load-balancer/src/controllers/redis.stats.ts
index d84f843..2615056 100644
--- a/load-balancer/src/controllers/redis.stats.ts
+++ b/load-balancer/src/controllers/redis.stats.ts
@@ -8,6 +8,7 @@ import {
   serversHeartbeatKey,
   serversSocketWritesPerSecondKey,
   redisServerKeyFactory,
+  chatRoomTotalMessagesKey,
 } from "@chat/shared";
 
 export const redisStats = async (_req: Request, res: Response) => {
@@ -53,6 +54,12 @@ export const redisStats = async (_req: Request, res: Response) => {
 
   servers.sort((a, b) => a.id.localeCompare(b.id));
 
+  const messageCounts = await redisClient.zRangeWithScores(
+    chatRoomTotalMessagesKey,
+    0,
+    -1,
+  );
+
   res.json({
     ts: now,
     servers,
@@ -61,5 +68,8 @@ export const redisStats = async (_req: Request, res: Response) => {
       chatRooms: servers.reduce((s, sv) => s + sv.chatRooms, 0),
       mps: servers.reduce((s, sv) => s + sv.mps, 0),
     },
+    chatRooms: {
+      messageCounts,
+    },
   });
 };

From 57d560399759fa87996411dc39f755b134b8e2f6 Mon Sep 17 00:00:00 2001
From: ryan <ryanennns@gmail.com>
Date: Sun, 22 Mar 2026 10:45:11 -0400
Subject: [PATCH 13/32] track chat room messages in intervals.ts, clear on load
 balancer shutdown

---
 load-balancer/src/intervals.ts | 9 +++++++++
 load-balancer/src/utils.ts     | 2 ++
 packages/shared/src/index.ts   | 6 ++++++
 3 files changed, 17 insertions(+)

diff --git a/load-balancer/src/intervals.ts b/load-balancer/src/intervals.ts
index 4114b2e..b3cd91b 100644
--- a/load-balancer/src/intervals.ts
+++ b/load-balancer/src/intervals.ts
@@ -6,6 +6,7 @@ import {
   serverBlacklist,
 } from "./utils.ts";
 import {
+  chatRoomTotalMessagesKey,
   NumericList,
   removeServerFromRedis,
   serversChatRoomsCountKey,
@@ -112,6 +113,14 @@ export const healthChecks = async () => {
   timeoutValues.forEach(({ value: id, score: timeout }) =>
     updateServerState(id, "timeouts", timeout),
   );
+  const chatRoomMessages = await redisClient.zRangeWithScores(
+    chatRoomTotalMessagesKey,
+    0,
+    -1,
+  );
+  chatRoomMessages.forEach(({ value: id, score: totalMessages }) =>
+    updateServerState(id, "messages", totalMessages),
+  );
 
   await detectTimedOutServers();
   purgeBlacklistedServers();
diff --git a/load-balancer/src/utils.ts b/load-balancer/src/utils.ts
index e158f83..a07a360 100644
--- a/load-balancer/src/utils.ts
+++ b/load-balancer/src/utils.ts
@@ -3,6 +3,7 @@ import { terminalUi } from "../terminal-ui.ts";
 import { type ChildProcessWithoutNullStreams, spawn } from "node:child_process";
 import path from "node:path";
 import {
+  chatRoomTotalMessagesKey,
   debugLog,
   defaultServerState,
   redisServerKeyFactory,
@@ -52,6 +53,7 @@ export const shutdown = async () => {
       await removeServerFromRedis(id);
       childServerMapElement.process.kill(1);
     }
+    await redisClient.del(chatRoomTotalMessagesKey)
   } catch {
     redisClient.destroy();
     subscriptionClient.destroy();
diff --git a/packages/shared/src/index.ts b/packages/shared/src/index.ts
index 977d90d..946adca 100644
--- a/packages/shared/src/index.ts
+++ b/packages/shared/src/index.ts
@@ -17,6 +17,10 @@ export class NumericList extends Array<number> {
   average() {
     return this.reduce((a, b) => a + b) / this.length;
   }
+
+  deltas() {
+    return this.map((v, i) => v - (this[i - 1] ?? 0));
+  }
 }
 
 export interface ServerState {
@@ -24,12 +28,14 @@ export interface ServerState {
   chatRooms: NumericList;
   socketWrites: NumericList;
   timeouts: NumericList;
+  messages: NumericList;
 }
 export const defaultServerState = (): ServerState => ({
   clients: new NumericList(...Array.from({ length: 100 }).map(() => 0)),
   chatRooms: new NumericList(...Array.from({ length: 100 }).map(() => 0)),
   socketWrites: new NumericList(...Array.from({ length: 100 }).map(() => 0)),
   timeouts: new NumericList(...Array.from({ length: 100 }).map(() => 0)),
+  messages: new NumericList(...Array.from({ length: 100 }).map(() => 0)),
 });
 
 export const redistributeChannel = "wss-redistribute";

From cd9288e3bb9c80bc1bc34cdee11ae2f66266d4c0 Mon Sep 17 00:00:00 2001
From: ryan <ryanennns@gmail.com>
Date: Sun, 22 Mar 2026 10:57:16 -0400
Subject: [PATCH 14/32] fe change

---
 chat-client/src/Monitor.tsx | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/chat-client/src/Monitor.tsx b/chat-client/src/Monitor.tsx
index f1a15fe..02e268d 100644
--- a/chat-client/src/Monitor.tsx
+++ b/chat-client/src/Monitor.tsx
@@ -165,7 +165,7 @@ function Graph({
       <div className="graph-meta">
         <span className="graph-label">{label}</span>
         <span className="graph-label">
-          avg: {(data.reduce((a, b) => a + b) / data.length).toFixed(3)}
+          avg: {(data.reduce((a, b) => a + b, 0) / data.length).toFixed(3)}
         </span>
         <span className="graph-current" style={{ color }}>
           {fmtVal(current)}
@@ -247,7 +247,7 @@ export function Monitor() {
             <div className="monitor-totals">
               <Stat label="servers" value={stats.servers.length} />
               <Stat label="clients" value={stats.totals.clients} />
-              <Stat label="total mps" value={fmt(stats.totals.mps)} />
+              <Stat label="total swps" value={fmt(stats.totals.mps)} />
               <Stat
                 label="healthy"
                 value={

From cba8fea7a362cf11c443d40ed722feff58758c0c Mon Sep 17 00:00:00 2001
From: ryan <ryanennns@gmail.com>
Date: Sun, 22 Mar 2026 10:57:35 -0400
Subject: [PATCH 15/32] temp change

---
 load-balancer/src/controllers/servers.provision.ts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/load-balancer/src/controllers/servers.provision.ts b/load-balancer/src/controllers/servers.provision.ts
index abec4ba..50152ec 100644
--- a/load-balancer/src/controllers/servers.provision.ts
+++ b/load-balancer/src/controllers/servers.provision.ts
@@ -6,7 +6,7 @@ import {
 } from "../utils.ts";
 import express from "express";
 import { incrProvisionsThisSecond } from "../intervals.ts";
-import { type Server } from "@chat/shared";
+import { getLowestLoadServer, type Server } from "@chat/shared";
 import { lastSpawnedServer, setLastSpawnedServer } from "../state.ts";
 
 const MAX_SOCKET_SPIKE_LOAD = 75_000;
@@ -43,7 +43,7 @@ export const provisionServer = async (
   res: express.Response,
 ) => {
   incrProvisionsThisSecond();
-  let server = await getBestCandidateServer();
+  let server = await getLowestLoadServer();
 
   if (!server) {
     res.sendStatus(404);

From 9f304c9cf03f40c5a6fb6b1d8badf43b61096c4a Mon Sep 17 00:00:00 2001
From: ryan <ryanennns@gmail.com>
Date: Sun, 22 Mar 2026 10:57:38 -0400
Subject: [PATCH 16/32] pw .

---
 load-balancer/src/utils.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/load-balancer/src/utils.ts b/load-balancer/src/utils.ts
index a07a360..5052035 100644
--- a/load-balancer/src/utils.ts
+++ b/load-balancer/src/utils.ts
@@ -53,7 +53,7 @@ export const shutdown = async () => {
       await removeServerFromRedis(id);
       childServerMapElement.process.kill(1);
     }
-    await redisClient.del(chatRoomTotalMessagesKey)
+    await redisClient.del(chatRoomTotalMessagesKey);
   } catch {
     redisClient.destroy();
     subscriptionClient.destroy();

From e106cca9ac2946e55da7beff2871f8320a07ca52 Mon Sep 17 00:00:00 2001
From: ryan <ryanennns@gmail.com>
Date: Sun, 22 Mar 2026 11:03:57 -0400
Subject: [PATCH 17/32] chat room total clients in redis

---
 chat-server/index.ts         | 4 ++++
 load-balancer/src/utils.ts   | 2 ++
 packages/shared/src/index.ts | 3 ++-
 3 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/chat-server/index.ts b/chat-server/index.ts
index 443d0f5..3523fe3 100644
--- a/chat-server/index.ts
+++ b/chat-server/index.ts
@@ -4,6 +4,7 @@ import { WebSocketServer } from "ws";
 import {
   addServerToRedis,
   ChatPayload,
+  chatRoomTotalClientsKey,
   chatRoomTotalMessagesKey,
   debugLog,
   redisRedistributeChannelFactory,
@@ -106,8 +107,10 @@ wss.on("connection", async (socket) => {
   client.on("close", async () => {
     const chatId = client.chatId;
     if (chatId) {
+      void redisClient.zIncrBy(chatRoomTotalClientsKey, -1, chatId);
       rooms.get(chatId)?.clients.delete(client);
     }
+
     if (chatId && (rooms.get(chatId)?.clients.size ?? 0) < 1) {
       debugLog(`unsubscribing from ${chatId}`);
       rooms.delete(chatId);
@@ -175,6 +178,7 @@ const registerSocket = async (
   socket: ClientSocket,
 ) => {
   const chatChannel = registrationMessage.payload.chatId;
+  await redisClient.zIncrBy(chatRoomTotalClientsKey, 1, chatChannel);
 
   if (rooms.get(chatChannel) === undefined) {
     incrementChatCount();
diff --git a/load-balancer/src/utils.ts b/load-balancer/src/utils.ts
index 5052035..44ff70a 100644
--- a/load-balancer/src/utils.ts
+++ b/load-balancer/src/utils.ts
@@ -3,6 +3,7 @@ import { terminalUi } from "../terminal-ui.ts";
 import { type ChildProcessWithoutNullStreams, spawn } from "node:child_process";
 import path from "node:path";
 import {
+  chatRoomTotalClientsKey,
   chatRoomTotalMessagesKey,
   debugLog,
   defaultServerState,
@@ -54,6 +55,7 @@ export const shutdown = async () => {
       childServerMapElement.process.kill(1);
     }
     await redisClient.del(chatRoomTotalMessagesKey);
+    await redisClient.del(chatRoomTotalClientsKey);
   } catch {
     redisClient.destroy();
     subscriptionClient.destroy();
diff --git a/packages/shared/src/index.ts b/packages/shared/src/index.ts
index 946adca..31c8d51 100644
--- a/packages/shared/src/index.ts
+++ b/packages/shared/src/index.ts
@@ -45,6 +45,7 @@ export const serversHeartbeatKey = "servers:heartbeat";
 export const serversSocketWritesPerSecondKey = "servers:swps";
 export const serversEventLoopTimeoutKey = "servers:event-loop";
 export const chatRoomTotalMessagesKey = "chat-rooms:messages";
+export const chatRoomTotalClientsKey = "chat-rooms:clients";
 export const redisRedistributeChannelFactory = (serverId: string) =>
   `${serverId}-${redistributeChannel}`;
 export const redisServerKeyFactory = (serverId: string) => `server:${serverId}`;
@@ -129,7 +130,7 @@ export const getLowestLoadServers = async (
   await redisClient.connect();
 
   const ids = await redisClient.zRange(
-    serversSocketWritesPerSecondKey,
+    serversClientCountKey,
     0,
     (count ?? 100) - 1,
   );

From e47f1be9ff1a60f354636ed212dc463766004000 Mon Sep 17 00:00:00 2001
From: ryan <ryanennns@gmail.com>
Date: Sun, 22 Mar 2026 11:04:04 -0400
Subject: [PATCH 18/32] fe

---
 chat-client/src/App.css                      |  7 +++++
 chat-client/src/Monitor.tsx                  | 32 ++++++++++++--------
 load-balancer/src/controllers/redis.stats.ts |  7 +++--
 3 files changed, 32 insertions(+), 14 deletions(-)

diff --git a/chat-client/src/App.css b/chat-client/src/App.css
index cd3754c..e2e2df2 100644
--- a/chat-client/src/App.css
+++ b/chat-client/src/App.css
@@ -161,6 +161,13 @@
   min-width: 0;
 }
 
+.room-clients {
+  color: #7d9fc5;
+  font-size: 0.75rem;
+  margin-left: 0.5rem;
+  flex-shrink: 0;
+}
+
 .room-msgs {
   color: #3fb950;
   font-size: 0.75rem;
diff --git a/chat-client/src/Monitor.tsx b/chat-client/src/Monitor.tsx
index 02e268d..1336449 100644
--- a/chat-client/src/Monitor.tsx
+++ b/chat-client/src/Monitor.tsx
@@ -22,7 +22,10 @@ interface RedisStats {
   ts: number;
   servers: ServerMetrics[];
   totals: { clients: number; chatRooms: number; mps: number };
-  chatRooms: { messageCounts: { value: string; score: number }[] };
+  chatRooms: {
+    messageCounts: { value: string; score: number }[];
+    clientCounts: { value: string; score: number }[];
+  };
 }
 
 const POLL_MS = 1000;
@@ -225,10 +228,6 @@ export function Monitor() {
     };
   }, []);
 
-  const sortedRooms = stats
-    ? [...stats.chatRooms.messageCounts].sort((a, b) => b.score - a.score)
-    : [];
-
   return (
     <div className="monitor">
       <div className="monitor-header">
@@ -285,15 +284,24 @@ export function Monitor() {
 
           <div className="monitor-sidebar">
             <div className="sidebar-title">chat rooms</div>
-            {sortedRooms.length === 0 && (
+            {stats.chatRooms.messageCounts.length === 0 && (
               <p className="monitor-empty">no rooms</p>
             )}
-            {sortedRooms.map((room) => (
-              <div key={room.value} className="room-row">
-                <span className="room-name">{room.value}</span>
-                <span className="room-msgs">{room.score}</span>
-              </div>
-            ))}
+            {[...stats.chatRooms.messageCounts]
+              .sort((a, b) => b.score - a.score)
+              .map((mc) => {
+                const clients =
+                  stats.chatRooms.clientCounts.find(
+                    (c) => c.value === mc.value,
+                  )?.score ?? 0;
+                return (
+                  <div key={mc.value} className="room-row">
+                    <span className="room-name">{mc.value}</span>
+                    <span className="room-clients">{clients}</span>
+                    <span className="room-msgs">{mc.score}</span>
+                  </div>
+                );
+              })}
           </div>
         </div>
       )}
diff --git a/load-balancer/src/controllers/redis.stats.ts b/load-balancer/src/controllers/redis.stats.ts
index 2615056..f65df0f 100644
--- a/load-balancer/src/controllers/redis.stats.ts
+++ b/load-balancer/src/controllers/redis.stats.ts
@@ -1,4 +1,4 @@
-// this is all AI generated
+// this is 99% AI generated
 import type { Request, Response } from "express";
 import { childServerMap, redisClient } from "../utils.ts";
 import {
@@ -8,7 +8,7 @@ import {
   serversHeartbeatKey,
   serversSocketWritesPerSecondKey,
   redisServerKeyFactory,
-  chatRoomTotalMessagesKey,
+  chatRoomTotalMessagesKey, chatRoomTotalClientsKey,
 } from "@chat/shared";
 
 export const redisStats = async (_req: Request, res: Response) => {
@@ -60,6 +60,8 @@ export const redisStats = async (_req: Request, res: Response) => {
     -1,
   );
 
+  const clientCounts = await redisClient.zRangeWithScores(chatRoomTotalClientsKey,1,-1);
+
   res.json({
     ts: now,
     servers,
@@ -70,6 +72,7 @@ export const redisStats = async (_req: Request, res: Response) => {
     },
     chatRooms: {
       messageCounts,
+      clientCounts,
     },
   });
 };

From 269b8b759a086087236990e5b4819bf35a76bf09 Mon Sep 17 00:00:00 2001
From: ryan <ryanennns@gmail.com>
Date: Sun, 22 Mar 2026 11:04:15 -0400
Subject: [PATCH 19/32] pw .

---
 _test-harness/index.ts                       | 6 +++---
 chat-client/src/Monitor.tsx                  | 5 ++---
 load-balancer/src/controllers/redis.stats.ts | 9 +++++++--
 3 files changed, 12 insertions(+), 8 deletions(-)

diff --git a/_test-harness/index.ts b/_test-harness/index.ts
index 6c23c6a..c8275ff 100644
--- a/_test-harness/index.ts
+++ b/_test-harness/index.ts
@@ -6,11 +6,11 @@ import type {
 } from "@chat/shared";
 
 const LOAD_BALANCER_URL = "http://localhost:3000";
-const CHATTER_COUNT = 10_000;
+const CHATTER_COUNT = 50;
 const CHAT_ROOM_COUNT = 1;
 const MESSAGE_INTERVAL_MIN_MS = 5_000;
-const MESSAGE_INTERVAL_MAX_MS = 90_000;
-const INITIAL_CONNECT_STAGGER_MS = 15;
+const MESSAGE_INTERVAL_MAX_MS = 15_000;
+const INITIAL_CONNECT_STAGGER_MS = 100;
 const RECONNECT_DELAY_MS = 100;
 
 type ProvisionedServer = {
diff --git a/chat-client/src/Monitor.tsx b/chat-client/src/Monitor.tsx
index 1336449..030e535 100644
--- a/chat-client/src/Monitor.tsx
+++ b/chat-client/src/Monitor.tsx
@@ -291,9 +291,8 @@ export function Monitor() {
               .sort((a, b) => b.score - a.score)
               .map((mc) => {
                 const clients =
-                  stats.chatRooms.clientCounts.find(
-                    (c) => c.value === mc.value,
-                  )?.score ?? 0;
+                  stats.chatRooms.clientCounts.find((c) => c.value === mc.value)
+                    ?.score ?? 0;
                 return (
                   <div key={mc.value} className="room-row">
                     <span className="room-name">{mc.value}</span>
diff --git a/load-balancer/src/controllers/redis.stats.ts b/load-balancer/src/controllers/redis.stats.ts
index f65df0f..8a38708 100644
--- a/load-balancer/src/controllers/redis.stats.ts
+++ b/load-balancer/src/controllers/redis.stats.ts
@@ -8,7 +8,8 @@ import {
   serversHeartbeatKey,
   serversSocketWritesPerSecondKey,
   redisServerKeyFactory,
-  chatRoomTotalMessagesKey, chatRoomTotalClientsKey,
+  chatRoomTotalMessagesKey,
+  chatRoomTotalClientsKey,
 } from "@chat/shared";
 
 export const redisStats = async (_req: Request, res: Response) => {
@@ -60,7 +61,11 @@ export const redisStats = async (_req: Request, res: Response) => {
     -1,
   );
 
-  const clientCounts = await redisClient.zRangeWithScores(chatRoomTotalClientsKey,1,-1);
+  const clientCounts = await redisClient.zRangeWithScores(
+    chatRoomTotalClientsKey,
+    1,
+    -1,
+  );
 
   res.json({
     ts: now,

From c18d90a2c1375359d44a63f31b8c631b29ed4d64 Mon Sep 17 00:00:00 2001
From: ryan <ryanennns@gmail.com>
Date: Sun, 22 Mar 2026 11:45:53 -0400
Subject: [PATCH 20/32] oops

---
 load-balancer/src/controllers/redis.stats.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/load-balancer/src/controllers/redis.stats.ts b/load-balancer/src/controllers/redis.stats.ts
index 8a38708..3cde8bb 100644
--- a/load-balancer/src/controllers/redis.stats.ts
+++ b/load-balancer/src/controllers/redis.stats.ts
@@ -63,7 +63,7 @@ export const redisStats = async (_req: Request, res: Response) => {
 
   const clientCounts = await redisClient.zRangeWithScores(
     chatRoomTotalClientsKey,
-    1,
+    0,
     -1,
   );
 

From e0d0882ccd9881e98aa47908f1b403c41f55c311 Mon Sep 17 00:00:00 2001
From: ryan <ryanennns@gmail.com>
Date: Sun, 22 Mar 2026 11:49:38 -0400
Subject: [PATCH 21/32] diff

---
 chat-client/src/Monitor.tsx | 25 ++++++++++++++++++++++---
 1 file changed, 22 insertions(+), 3 deletions(-)

diff --git a/chat-client/src/Monitor.tsx b/chat-client/src/Monitor.tsx
index 030e535..35ccb32 100644
--- a/chat-client/src/Monitor.tsx
+++ b/chat-client/src/Monitor.tsx
@@ -228,6 +228,15 @@ export function Monitor() {
     };
   }, []);
 
+  const prevMessageCounts = useRef<typeof stats.chatRooms.messageCounts>([]);
+
+  useEffect(() => {
+    if (stats) {
+      prevMessageCounts.current = stats.chatRooms.messageCounts;
+    }
+  }, [stats]);
+
+
   return (
     <div className="monitor">
       <div className="monitor-header">
@@ -288,16 +297,26 @@ export function Monitor() {
               <p className="monitor-empty">no rooms</p>
             )}
             {[...stats.chatRooms.messageCounts]
-              .sort((a, b) => b.score - a.score)
-              .map((mc) => {
+              .sort(
+                (a, b) =>
+                  (stats.chatRooms.clientCounts.find((c) => c.value === b.value)
+                    ?.score ?? 0) -
+                  (stats.chatRooms.clientCounts.find((c) => c.value === a.value)
+                    ?.score ?? 0),
+              )
+              .map((mc, i) => {
+                const prev = prevMessageCounts.current.find((p) => p.value === mc.value);
+                const delta = prev ? mc.score - prev.score : 0;
+
                 const clients =
                   stats.chatRooms.clientCounts.find((c) => c.value === mc.value)
                     ?.score ?? 0;
+
                 return (
                   <div key={mc.value} className="room-row">
                     <span className="room-name">{mc.value}</span>
                     <span className="room-clients">{clients}</span>
-                    <span className="room-msgs">{mc.score}</span>
+                    <span className="room-msgs">{delta}</span>
                   </div>
                 );
               })}

From c9300b220d26bf51ae0c6bfca5cfe9b3b06e2f4c Mon Sep 17 00:00:00 2001
From: ryan <ryanennns@gmail.com>
Date: Sun, 22 Mar 2026 12:17:15 -0400
Subject: [PATCH 22/32] pw .

---
 chat-client/src/Monitor.tsx | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/chat-client/src/Monitor.tsx b/chat-client/src/Monitor.tsx
index 35ccb32..6d79ccf 100644
--- a/chat-client/src/Monitor.tsx
+++ b/chat-client/src/Monitor.tsx
@@ -236,7 +236,6 @@ export function Monitor() {
     }
   }, [stats]);
 
-
   return (
     <div className="monitor">
       <div className="monitor-header">
@@ -305,7 +304,9 @@ export function Monitor() {
                     ?.score ?? 0),
               )
               .map((mc, i) => {
-                const prev = prevMessageCounts.current.find((p) => p.value === mc.value);
+                const prev = prevMessageCounts.current.find(
+                  (p) => p.value === mc.value,
+                );
                 const delta = prev ? mc.score - prev.score : 0;
 
                 const clients =

From 1af26297553766e98d9f3358203d9c9ddc39b61c Mon Sep 17 00:00:00 2001
From: ryan <ryanennns@gmail.com>
Date: Sun, 22 Mar 2026 13:02:10 -0400
Subject: [PATCH 23/32] server chat room client count

---
 chat-server/index.ts           | 11 +++++++++
 load-balancer/src/intervals.ts | 43 ++++++++++++++++++++--------------
 load-balancer/terminal-ui.ts   |  1 -
 packages/shared/src/index.ts   | 13 ++++++++--
 4 files changed, 48 insertions(+), 20 deletions(-)

diff --git a/chat-server/index.ts b/chat-server/index.ts
index 3523fe3..ec357f6 100644
--- a/chat-server/index.ts
+++ b/chat-server/index.ts
@@ -7,6 +7,7 @@ import {
   chatRoomTotalClientsKey,
   chatRoomTotalMessagesKey,
   debugLog,
+  redisChatCountKeyFactory,
   redisRedistributeChannelFactory,
   redisServerKeyFactory,
   RegistrationPayload,
@@ -108,6 +109,11 @@ wss.on("connection", async (socket) => {
     const chatId = client.chatId;
     if (chatId) {
       void redisClient.zIncrBy(chatRoomTotalClientsKey, -1, chatId);
+      void redisClient.hIncrBy(
+        redisServerKeyFactory(serverId),
+        redisChatCountKeyFactory(chatId),
+        -1,
+      );
       rooms.get(chatId)?.clients.delete(client);
     }
 
@@ -179,6 +185,11 @@ const registerSocket = async (
 ) => {
   const chatChannel = registrationMessage.payload.chatId;
   await redisClient.zIncrBy(chatRoomTotalClientsKey, 1, chatChannel);
+  await redisClient.hIncrBy(
+    redisServerKeyFactory(serverId),
+    redisChatCountKeyFactory(chatChannel),
+    1,
+  );
 
   if (rooms.get(chatChannel) === undefined) {
     incrementChatCount();
diff --git a/load-balancer/src/intervals.ts b/load-balancer/src/intervals.ts
index b3cd91b..26f7d20 100644
--- a/load-balancer/src/intervals.ts
+++ b/load-balancer/src/intervals.ts
@@ -7,14 +7,14 @@ import {
 } from "./utils.ts";
 import {
   chatRoomTotalMessagesKey,
+  type HistoryKey,
   NumericList,
+  redisServerKeyFactory,
   removeServerFromRedis,
-  serversChatRoomsCountKey,
   serversClientCountKey,
   serversEventLoopTimeoutKey,
   serversHeartbeatKey,
   serversSocketWritesPerSecondKey,
-  type ServerState,
 } from "@chat/shared";
 
 const PPS_SURGE_THRESHOLD = 40;
@@ -64,9 +64,9 @@ const purgeBlacklistedServers = () => {
   });
 };
 
-const updateServerState = (
+const updateServerStateHistoryArray = (
   id: string,
-  key: keyof ServerState,
+  key: HistoryKey,
   value: number,
 ) => {
   if (!childServerMap.has(id)) {
@@ -77,6 +77,12 @@ const updateServerState = (
   childServerMap.get(id)?.state[key]?.push(value);
 };
 
+const setServerChatRoomState = (id: string, value: Record<string, number>) => {
+  if (childServerMap.has(id)) {
+    childServerMap.get(id)!.state["chatRooms"] = value;
+  }
+};
+
 export const healthChecks = async () => {
   // socket writes
   const socketWrites = await redisClient.zRangeWithScores(
@@ -85,7 +91,7 @@ export const healthChecks = async () => {
     -1,
   );
   socketWrites.forEach(({ value: id, score: writesPerSecond }) =>
-    updateServerState(id, "socketWrites", writesPerSecond),
+    updateServerStateHistoryArray(id, "socketWrites", writesPerSecond),
   );
   // clients
   const clients = await redisClient.zRangeWithScores(
@@ -94,16 +100,7 @@ export const healthChecks = async () => {
     -1,
   );
   clients.forEach(({ value: id, score: clients }) =>
-    updateServerState(id, "clients", clients),
-  );
-  // chat rooms
-  const chatRooms = await redisClient.zRangeWithScores(
-    serversChatRoomsCountKey,
-    0,
-    -1,
-  );
-  chatRooms.forEach(({ value: id, score: chatRooms }) =>
-    updateServerState(id, "chatRooms", chatRooms),
+    updateServerStateHistoryArray(id, "clients", clients),
   );
   const timeoutValues = await redisClient.zRangeWithScores(
     serversEventLoopTimeoutKey,
@@ -111,7 +108,7 @@ export const healthChecks = async () => {
     -1,
   );
   timeoutValues.forEach(({ value: id, score: timeout }) =>
-    updateServerState(id, "timeouts", timeout),
+    updateServerStateHistoryArray(id, "timeouts", timeout),
   );
   const chatRoomMessages = await redisClient.zRangeWithScores(
     chatRoomTotalMessagesKey,
@@ -119,9 +116,21 @@ export const healthChecks = async () => {
     -1,
   );
   chatRoomMessages.forEach(({ value: id, score: totalMessages }) =>
-    updateServerState(id, "messages", totalMessages),
+    updateServerStateHistoryArray(id, "messages", totalMessages),
   );
 
+  for (const c of [...childServerMap.values()]) {
+    const redisData = await redisClient.hGetAll(redisServerKeyFactory(c.server.id));
+    const chatKeys = Object.keys(redisData).filter((k) => k.includes("chat:"));
+    const keyValuePairs: Record<string, number> = {};
+
+    for (let chatKey of chatKeys) {
+      keyValuePairs[chatKey.split("chat:")[1]] = Number(redisData[chatKey]);
+    }
+
+    setServerChatRoomState(c.server.id, keyValuePairs);
+  }
+
   await detectTimedOutServers();
   purgeBlacklistedServers();
 
diff --git a/load-balancer/terminal-ui.ts b/load-balancer/terminal-ui.ts
index 54ead7b..4bf6ed4 100644
--- a/load-balancer/terminal-ui.ts
+++ b/load-balancer/terminal-ui.ts
@@ -360,7 +360,6 @@ class LoadBalancerTerminalUi {
             mps: Number(formatNumber(mps)),
             state: {
               clients: formatNumberArray(state.clients),
-              chatRooms: formatNumberArray(state.chatRooms),
               socketWrites: formatNumberArray(state.socketWrites),
               timeouts: formatNumberArray(state.timeouts),
             },
diff --git a/packages/shared/src/index.ts b/packages/shared/src/index.ts
index 31c8d51..e3b102c 100644
--- a/packages/shared/src/index.ts
+++ b/packages/shared/src/index.ts
@@ -23,19 +23,26 @@ export class NumericList extends Array<number> {
   }
 }
 
+export type HistoryKey = Exclude<
+  {
+    [K in keyof ServerState]: ServerState[K] extends NumericList ? K : never;
+  }[keyof ServerState],
+  "chatRooms"
+>;
+
 export interface ServerState {
   clients: NumericList;
-  chatRooms: NumericList;
   socketWrites: NumericList;
   timeouts: NumericList;
   messages: NumericList;
+  chatRooms: Record<string, number>;
 }
 export const defaultServerState = (): ServerState => ({
   clients: new NumericList(...Array.from({ length: 100 }).map(() => 0)),
-  chatRooms: new NumericList(...Array.from({ length: 100 }).map(() => 0)),
   socketWrites: new NumericList(...Array.from({ length: 100 }).map(() => 0)),
   timeouts: new NumericList(...Array.from({ length: 100 }).map(() => 0)),
   messages: new NumericList(...Array.from({ length: 100 }).map(() => 0)),
+  chatRooms: {},
 });
 
 export const redistributeChannel = "wss-redistribute";
@@ -49,6 +56,8 @@ export const chatRoomTotalClientsKey = "chat-rooms:clients";
 export const redisRedistributeChannelFactory = (serverId: string) =>
   `${serverId}-${redistributeChannel}`;
 export const redisServerKeyFactory = (serverId: string) => `server:${serverId}`;
+export const redisChatCountKeyFactory = (chatChannel: string) =>
+  `chat:${chatChannel}`;
 
 export const addServerToRedis = async (server: Server) => {
   const redisClient = createClient();

From 7731b3b8b3d1f62ea0b3f73b7cad056ca320cfc9 Mon Sep 17 00:00:00 2001
From: ryan <ryanennns@gmail.com>
Date: Sun, 22 Mar 2026 13:09:43 -0400
Subject: [PATCH 24/32] use server state map instead of redis for redis
 endpoint

---
 load-balancer/src/controllers/redis.stats.ts | 76 +++++++-------------
 1 file changed, 24 insertions(+), 52 deletions(-)

diff --git a/load-balancer/src/controllers/redis.stats.ts b/load-balancer/src/controllers/redis.stats.ts
index 3cde8bb..c9d61e2 100644
--- a/load-balancer/src/controllers/redis.stats.ts
+++ b/load-balancer/src/controllers/redis.stats.ts
@@ -1,13 +1,7 @@
-// this is 99% AI generated
 import type { Request, Response } from "express";
 import { childServerMap, redisClient } from "../utils.ts";
 import {
-  serversChatRoomsCountKey,
-  serversClientCountKey,
-  serversEventLoopTimeoutKey,
   serversHeartbeatKey,
-  serversSocketWritesPerSecondKey,
-  redisServerKeyFactory,
   chatRoomTotalMessagesKey,
   chatRoomTotalClientsKey,
 } from "@chat/shared";
@@ -15,58 +9,36 @@ import {
 export const redisStats = async (_req: Request, res: Response) => {
   const now = Date.now();
 
-  const [clients, chatRooms, heartbeats, mps, eventLoop] = await Promise.all([
-    redisClient.zRangeWithScores(serversClientCountKey, 0, -1),
-    redisClient.zRangeWithScores(serversChatRoomsCountKey, 0, -1),
+  const [heartbeats, messageCounts, clientCounts] = await Promise.all([
     redisClient.zRangeWithScores(serversHeartbeatKey, 0, -1),
-    redisClient.zRangeWithScores(serversSocketWritesPerSecondKey, 0, -1),
-    redisClient.zRangeWithScores(serversEventLoopTimeoutKey, 0, -1),
+    redisClient.zRangeWithScores(chatRoomTotalMessagesKey, 0, -1),
+    redisClient.zRangeWithScores(chatRoomTotalClientsKey, 0, -1),
   ]);
 
-  const serverIds = new Set([
-    ...clients.map((e) => e.value),
-    ...heartbeats.map((e) => e.value),
-    ...mps.map((e) => e.value),
-  ]);
-
-  const servers = await Promise.all(
-    [...serverIds].map(async (id) => {
-      const url =
-        (await redisClient.hGet(redisServerKeyFactory(id), "url")) ?? null;
-      const state = childServerMap.get(id)?.state;
-      return {
-        id,
-        url,
-        clients: clients.find((e) => e.value === id)?.score ?? 0,
-        chatRooms: chatRooms.find((e) => e.value === id)?.score ?? 0,
-        mps: mps.find((e) => e.value === id)?.score ?? 0,
-        eventLoopTimeout: eventLoop.find((e) => e.value === id)?.score ?? 0,
-        heartbeatAgeMs:
-          now - (heartbeats.find((e) => e.value === id)?.score ?? 0),
-        history: {
-          clients: state?.clients ?? [],
-          chatRooms: state?.chatRooms ?? [],
-          socketWrites: state?.socketWrites ?? [],
-          timeouts: state?.timeouts ?? [],
-        },
-      };
-    }),
-  );
+  const heartbeatMap = new Map(heartbeats.map((e) => [e.value, e.score]));
+
+  const servers = [...childServerMap.entries()].map(([id, child]) => {
+    const { state, server } = child;
+    const last = state.clients.length - 1;
+    return {
+      id,
+      url: server.url,
+      clients: state.clients[last] ?? 0,
+      chatRooms: Object.keys(state.chatRooms).length,
+      mps: state.socketWrites[last] ?? 0,
+      eventLoopTimeout: state.timeouts[last] ?? 0,
+      heartbeatAgeMs: now - (heartbeatMap.get(id) ?? 0),
+      history: {
+        clients: state.clients,
+        chatRooms: state.chatRooms,
+        socketWrites: state.socketWrites,
+        timeouts: state.timeouts,
+      },
+    };
+  });
 
   servers.sort((a, b) => a.id.localeCompare(b.id));
 
-  const messageCounts = await redisClient.zRangeWithScores(
-    chatRoomTotalMessagesKey,
-    0,
-    -1,
-  );
-
-  const clientCounts = await redisClient.zRangeWithScores(
-    chatRoomTotalClientsKey,
-    0,
-    -1,
-  );
-
   res.json({
     ts: now,
     servers,

From 97e4db47d0a31468cef0995e53f20581147ea831 Mon Sep 17 00:00:00 2001
From: ryan <ryanennns@gmail.com>
Date: Sun, 22 Mar 2026 13:19:55 -0400
Subject: [PATCH 25/32] show chat room distribution on server row

---
 chat-client/src/App.css                      | 29 ++++++++++++++++++++
 chat-client/src/Monitor.tsx                  | 17 ++++++++++--
 load-balancer/src/controllers/redis.stats.ts |  7 +++--
 3 files changed, 48 insertions(+), 5 deletions(-)

diff --git a/chat-client/src/App.css b/chat-client/src/App.css
index e2e2df2..52a6152 100644
--- a/chat-client/src/App.css
+++ b/chat-client/src/App.css
@@ -322,6 +322,35 @@
   flex-wrap: wrap;
 }
 
+.server-rooms {
+  margin-top: 0.5rem;
+  border-top: 1px solid #2a2a2a;
+  padding-top: 0.4rem;
+  display: flex;
+  flex-direction: column;
+  gap: 0.1rem;
+}
+
+.server-room-row {
+  display: flex;
+  justify-content: space-between;
+  font-size: 0.75rem;
+  color: #888;
+}
+
+.server-room-name {
+  color: #aaa;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+  max-width: 80%;
+}
+
+.server-room-clients {
+  color: #7d9fc5;
+  font-variant-numeric: tabular-nums;
+}
+
 .graph {
   display: flex;
   flex-direction: column;
diff --git a/chat-client/src/Monitor.tsx b/chat-client/src/Monitor.tsx
index 6d79ccf..c34f50c 100644
--- a/chat-client/src/Monitor.tsx
+++ b/chat-client/src/Monitor.tsx
@@ -11,7 +11,7 @@ interface ServerMetrics {
   id: string;
   url: string | null;
   clients: number;
-  chatRooms: number;
+  chatRooms: Record<string, number>;
   mps: number;
   eventLoopTimeout: number;
   heartbeatAgeMs: number;
@@ -145,6 +145,18 @@ function ServerCard({ s }: { s: ServerMetrics }) {
           fmt={(v) => `${fmt(v)}ms`}
         />
       </div>
+      {s.chatRooms && Object.keys(s.chatRooms).length > 0 && (
+        <div className="server-rooms">
+          {Object.entries(s.chatRooms)
+            .sort(([, a], [, b]) => b - a)
+            .map(([roomId, count]) => (
+              <div key={roomId} className="server-room-row">
+                <span className="server-room-name">{roomId}</span>
+                <span className="server-room-clients">{count}</span>
+              </div>
+            ))}
+        </div>
+      )}
     </div>
   );
 }
@@ -229,7 +241,6 @@ export function Monitor() {
   }, []);
 
   const prevMessageCounts = useRef<typeof stats.chatRooms.messageCounts>([]);
-
   useEffect(() => {
     if (stats) {
       prevMessageCounts.current = stats.chatRooms.messageCounts;
@@ -303,7 +314,7 @@ export function Monitor() {
                   (stats.chatRooms.clientCounts.find((c) => c.value === a.value)
                     ?.score ?? 0),
               )
-              .map((mc, i) => {
+              .map((mc) => {
                 const prev = prevMessageCounts.current.find(
                   (p) => p.value === mc.value,
                 );
diff --git a/load-balancer/src/controllers/redis.stats.ts b/load-balancer/src/controllers/redis.stats.ts
index c9d61e2..a14bd9b 100644
--- a/load-balancer/src/controllers/redis.stats.ts
+++ b/load-balancer/src/controllers/redis.stats.ts
@@ -24,7 +24,7 @@ export const redisStats = async (_req: Request, res: Response) => {
       id,
       url: server.url,
       clients: state.clients[last] ?? 0,
-      chatRooms: Object.keys(state.chatRooms).length,
+      chatRooms: state.chatRooms,
       mps: state.socketWrites[last] ?? 0,
       eventLoopTimeout: state.timeouts[last] ?? 0,
       heartbeatAgeMs: now - (heartbeatMap.get(id) ?? 0),
@@ -44,7 +44,10 @@ export const redisStats = async (_req: Request, res: Response) => {
     servers,
     totals: {
       clients: servers.reduce((s, sv) => s + sv.clients, 0),
-      chatRooms: servers.reduce((s, sv) => s + sv.chatRooms, 0),
+      chatRooms: servers.reduce(
+        (s, sv) => s + Object.values(sv.chatRooms).length,
+        0,
+      ),
       mps: servers.reduce((s, sv) => s + sv.mps, 0),
     },
     chatRooms: {

From 70d1493749316d4395d429b0e1c214c118c8fe74 Mon Sep 17 00:00:00 2001
From: ryan <ryanennns@gmail.com>
Date: Sun, 22 Mar 2026 13:19:58 -0400
Subject: [PATCH 26/32] pw

---
 load-balancer/src/intervals.ts | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/load-balancer/src/intervals.ts b/load-balancer/src/intervals.ts
index 26f7d20..02de37c 100644
--- a/load-balancer/src/intervals.ts
+++ b/load-balancer/src/intervals.ts
@@ -120,7 +120,9 @@ export const healthChecks = async () => {
   );
 
   for (const c of [...childServerMap.values()]) {
-    const redisData = await redisClient.hGetAll(redisServerKeyFactory(c.server.id));
+    const redisData = await redisClient.hGetAll(
+      redisServerKeyFactory(c.server.id),
+    );
     const chatKeys = Object.keys(redisData).filter((k) => k.includes("chat:"));
     const keyValuePairs: Record<string, number> = {};
 

From b0509231c6d4d46a8621637ef8099a14b096321c Mon Sep 17 00:00:00 2001
From: ryan <ryanennns@gmail.com>
Date: Sun, 22 Mar 2026 13:46:12 -0400
Subject: [PATCH 27/32] chat room client history / socket writes on server
 state

---
 load-balancer/src/intervals.ts | 34 ++++++++++++++++++++++++++++++++++
 load-balancer/src/state.ts     |  3 +++
 packages/shared/src/index.ts   |  2 ++
 3 files changed, 39 insertions(+)

diff --git a/load-balancer/src/intervals.ts b/load-balancer/src/intervals.ts
index 02de37c..e130ce5 100644
--- a/load-balancer/src/intervals.ts
+++ b/load-balancer/src/intervals.ts
@@ -16,6 +16,7 @@ import {
   serversHeartbeatKey,
   serversSocketWritesPerSecondKey,
 } from "@chat/shared";
+import { chatRoomClientHistory } from "./state.ts";
 
 const PPS_SURGE_THRESHOLD = 40;
 
@@ -133,6 +134,23 @@ export const healthChecks = async () => {
     setServerChatRoomState(c.server.id, keyValuePairs);
   }
 
+  for (const c of [...childServerMap.values()]) {
+    for (let chatRoomKey in c.state.chatRooms) {
+      const list = chatRoomClientHistory[chatRoomKey];
+      const chats = list.deltas()[list.length - 1];
+      const clients = c.state.chatRooms[chatRoomKey]
+
+      const socketWrites = chats * clients;
+
+      if (!c.state.chatRoomSocketWrites[chatRoomKey]) {
+        c.state.chatRoomSocketWrites[chatRoomKey] = new NumericList(...Array.from({length:100}).map(() => 0))
+      }
+
+      c.state.chatRoomSocketWrites[chatRoomKey].shift()
+      c.state.chatRoomSocketWrites[chatRoomKey].push(socketWrites);
+    }
+  }
+
   await detectTimedOutServers();
   purgeBlacklistedServers();
 
@@ -177,8 +195,24 @@ const syncTerminalUi = () => {
   });
 };
 
+const updateState = async () => {
+  const values = await redisClient.zRangeWithScores(
+    chatRoomTotalMessagesKey,
+    0,
+    -1,
+  );
+  values.forEach(({ value, score }) => {
+    if (!chatRoomClientHistory[value]) {
+      chatRoomClientHistory[value] = new NumericList(...Array.from({length:100}).map(() => 0));
+    }
+    chatRoomClientHistory[value].shift();
+    chatRoomClientHistory[value].push(score);
+  });
+};
+
 export const startIntervals = () => {
   setInterval(async () => {
+    await updateState();
     await healthChecks();
     syncTerminalUi();
   }, 1000);
diff --git a/load-balancer/src/state.ts b/load-balancer/src/state.ts
index e3ffea4..eecf0bf 100644
--- a/load-balancer/src/state.ts
+++ b/load-balancer/src/state.ts
@@ -1,3 +1,6 @@
+import { NumericList } from "@chat/shared";
+
+export const chatRoomClientHistory: Record<string, NumericList> = {};
 export let lastSpawnedServer = Date.now();
 export const setLastSpawnedServer = (time: number) =>
   (lastSpawnedServer = time);
diff --git a/packages/shared/src/index.ts b/packages/shared/src/index.ts
index e3b102c..82f185a 100644
--- a/packages/shared/src/index.ts
+++ b/packages/shared/src/index.ts
@@ -36,6 +36,7 @@ export interface ServerState {
   timeouts: NumericList;
   messages: NumericList;
   chatRooms: Record<string, number>;
+  chatRoomSocketWrites: Record<string, NumericList>;
 }
 export const defaultServerState = (): ServerState => ({
   clients: new NumericList(...Array.from({ length: 100 }).map(() => 0)),
@@ -43,6 +44,7 @@ export const defaultServerState = (): ServerState => ({
   timeouts: new NumericList(...Array.from({ length: 100 }).map(() => 0)),
   messages: new NumericList(...Array.from({ length: 100 }).map(() => 0)),
   chatRooms: {},
+  chatRoomSocketWrites: {},
 });
 
 export const redistributeChannel = "wss-redistribute";

From 1d6c19c04a570027e2e93919d6541f91b4765ae1 Mon Sep 17 00:00:00 2001
From: ryan <ryanennns@gmail.com>
Date: Sun, 22 Mar 2026 13:49:41 -0400
Subject: [PATCH 28/32] omg

---
 chat-client/src/App.css                      | 13 +++++++++++++
 chat-client/src/Monitor.tsx                  | 11 +++++++++++
 load-balancer/src/controllers/redis.stats.ts | 13 +++++++++++++
 3 files changed, 37 insertions(+)

diff --git a/chat-client/src/App.css b/chat-client/src/App.css
index 52a6152..3243863 100644
--- a/chat-client/src/App.css
+++ b/chat-client/src/App.css
@@ -175,6 +175,13 @@
   flex-shrink: 0;
 }
 
+.room-swps {
+  color: #bc8cff;
+  font-size: 0.75rem;
+  margin-left: 0.5rem;
+  flex-shrink: 0;
+}
+
 .monitor-header {
   display: flex;
   align-items: center;
@@ -351,6 +358,12 @@
   font-variant-numeric: tabular-nums;
 }
 
+.server-room-swps {
+  color: #bc8cff;
+  font-size: 0.75rem;
+  font-variant-numeric: tabular-nums;
+}
+
 .graph {
   display: flex;
   flex-direction: column;
diff --git a/chat-client/src/Monitor.tsx b/chat-client/src/Monitor.tsx
index c34f50c..f8dff21 100644
--- a/chat-client/src/Monitor.tsx
+++ b/chat-client/src/Monitor.tsx
@@ -5,6 +5,7 @@ interface ServerHistory {
   chatRooms: number[];
   socketWrites: number[];
   timeouts: number[];
+  chatRoomSocketWrites: Record<string, number[]>;
 }
 
 interface ServerMetrics {
@@ -12,6 +13,7 @@ interface ServerMetrics {
   url: string | null;
   clients: number;
   chatRooms: Record<string, number>;
+  chatRoomSocketWrites: Record<string, number>;
   mps: number;
   eventLoopTimeout: number;
   heartbeatAgeMs: number;
@@ -153,6 +155,9 @@ function ServerCard({ s }: { s: ServerMetrics }) {
               <div key={roomId} className="server-room-row">
                 <span className="server-room-name">{roomId}</span>
                 <span className="server-room-clients">{count}</span>
+                <span className="server-room-swps">
+                  {s.chatRoomSocketWrites?.[roomId] ?? 0} swps
+                </span>
               </div>
             ))}
         </div>
@@ -324,11 +329,17 @@ export function Monitor() {
                   stats.chatRooms.clientCounts.find((c) => c.value === mc.value)
                     ?.score ?? 0;
 
+                const swps = stats.servers.reduce(
+                  (sum, s) => sum + (s.chatRoomSocketWrites?.[mc.value] ?? 0),
+                  0,
+                );
+
                 return (
                   <div key={mc.value} className="room-row">
                     <span className="room-name">{mc.value}</span>
                     <span className="room-clients">{clients}</span>
                     <span className="room-msgs">{delta}</span>
+                    <span className="room-swps">{swps}</span>
                   </div>
                 );
               })}
diff --git a/load-balancer/src/controllers/redis.stats.ts b/load-balancer/src/controllers/redis.stats.ts
index a14bd9b..c0415f3 100644
--- a/load-balancer/src/controllers/redis.stats.ts
+++ b/load-balancer/src/controllers/redis.stats.ts
@@ -20,11 +20,18 @@ export const redisStats = async (_req: Request, res: Response) => {
   const servers = [...childServerMap.entries()].map(([id, child]) => {
     const { state, server } = child;
     const last = state.clients.length - 1;
+    const chatRoomSocketWrites = Object.fromEntries(
+      Object.entries(state.chatRoomSocketWrites).map(([room, list]) => [
+        room,
+        list[list.length - 1] ?? 0,
+      ]),
+    );
     return {
       id,
       url: server.url,
       clients: state.clients[last] ?? 0,
       chatRooms: state.chatRooms,
+      chatRoomSocketWrites,
       mps: state.socketWrites[last] ?? 0,
       eventLoopTimeout: state.timeouts[last] ?? 0,
       heartbeatAgeMs: now - (heartbeatMap.get(id) ?? 0),
@@ -33,6 +40,12 @@ export const redisStats = async (_req: Request, res: Response) => {
         chatRooms: state.chatRooms,
         socketWrites: state.socketWrites,
         timeouts: state.timeouts,
+        chatRoomSocketWrites: Object.fromEntries(
+          Object.entries(state.chatRoomSocketWrites).map(([room, list]) => [
+            room,
+            [...list],
+          ]),
+        ),
       },
     };
   });

From e748caecb5850de371032e7a527484e5d05af2f5 Mon Sep 17 00:00:00 2001
From: ryan <ryanennns@gmail.com>
Date: Sun, 22 Mar 2026 13:59:14 -0400
Subject: [PATCH 29/32] hold up

---
 load-balancer/index.ts         |  4 ++--
 load-balancer/src/intervals.ts | 44 +++++++++++++++++-----------------
 load-balancer/src/utils.ts     |  4 ++--
 load-balancer/terminal-ui.ts   |  2 +-
 4 files changed, 27 insertions(+), 27 deletions(-)

diff --git a/load-balancer/index.ts b/load-balancer/index.ts
index 814a558..7c67f93 100644
--- a/load-balancer/index.ts
+++ b/load-balancer/index.ts
@@ -1,10 +1,10 @@
 import { app } from "./src/app.ts";
-import { terminalUi } from "./terminal-ui.ts";
+// import { terminalUi } from "./terminal-ui.ts";
 import { childServerMap, shutdown, spawnServer } from "./src/utils.ts";
 import { startIntervals } from "./src/intervals.ts";
 
 const port = 3000;
-terminalUi.setRuntimeInfo({ port, serviceName: "load-balancer" });
+// terminalUi.setRuntimeInfo({ port, serviceName: "load-balancer" });
 
 if (childServerMap.size < 1) {
   console.log("spawning init");
diff --git a/load-balancer/src/intervals.ts b/load-balancer/src/intervals.ts
index e130ce5..1628e3d 100644
--- a/load-balancer/src/intervals.ts
+++ b/load-balancer/src/intervals.ts
@@ -1,4 +1,4 @@
-import { terminalUi } from "../terminal-ui.ts";
+// import { terminalUi } from "../terminal-ui.ts";
 import {
   childServerMap,
   redisClient,
@@ -136,8 +136,8 @@ export const healthChecks = async () => {
 
   for (const c of [...childServerMap.values()]) {
     for (let chatRoomKey in c.state.chatRooms) {
-      const list = chatRoomClientHistory[chatRoomKey];
-      const chats = list.deltas()[list.length - 1];
+      const list = chatRoomClientHistory[chatRoomKey] ?? new NumericList();
+      const chats = list.deltas()[list.length - 1] ?? 0;
       const clients = c.state.chatRooms[chatRoomKey]
 
       const socketWrites = chats * clients;
@@ -175,24 +175,24 @@ const syncTerminalUi = () => {
   const clientsByServerId = new Map(runtimeState.serverLoads);
   const mpsByServerId = new Map(runtimeState.serverMps);
 
-  terminalUi.setSnapshot({
-    blacklistedServers: [...serverBlacklist.entries()].map(
-      ([serverId, startedAt]) => [
-        serverId,
-        Math.floor((Date.now() - startedAt) / 1000),
-      ],
-    ),
-    childServers: [...childServerMap.entries()].map(([serverId, child]) => ({
-      clients: clientsByServerId.get(serverId) ?? 0,
-      isKilled: child.process.killed,
-      mps: mpsByServerId.get(serverId) ?? 0,
-      pid: child.process.pid,
-      serverId,
-      state: child.state,
-    })),
-    status: "running",
-    ...runtimeState,
-  });
+  // terminalUi.setSnapshot({
+  //   blacklistedServers: [...serverBlacklist.entries()].map(
+  //     ([serverId, startedAt]) => [
+  //       serverId,
+  //       Math.floor((Date.now() - startedAt) / 1000),
+  //     ],
+  //   ),
+  //   childServers: [...childServerMap.entries()].map(([serverId, child]) => ({
+  //     clients: clientsByServerId.get(serverId) ?? 0,
+  //     isKilled: child.process.killed,
+  //     mps: mpsByServerId.get(serverId) ?? 0,
+  //     pid: child.process.pid,
+  //     serverId,
+  //     state: child.state,
+  //   })),
+  //   status: "running",
+  //   ...runtimeState,
+  // });
 };
 
 const updateState = async () => {
@@ -214,6 +214,6 @@ export const startIntervals = () => {
   setInterval(async () => {
     await updateState();
     await healthChecks();
-    syncTerminalUi();
+    // syncTerminalUi();
   }, 1000);
 };
diff --git a/load-balancer/src/utils.ts b/load-balancer/src/utils.ts
index 44ff70a..6c8f598 100644
--- a/load-balancer/src/utils.ts
+++ b/load-balancer/src/utils.ts
@@ -1,5 +1,5 @@
 import { createClient } from "redis";
-import { terminalUi } from "../terminal-ui.ts";
+// import { terminalUi } from "../terminal-ui.ts";
 import { type ChildProcessWithoutNullStreams, spawn } from "node:child_process";
 import path from "node:path";
 import {
@@ -47,7 +47,7 @@ export const runtimeState = {
 
 export const shutdown = async () => {
   try {
-    terminalUi.destroy();
+    // terminalUi.destroy();
     await redisClient.quit();
     await subscriptionClient.quit();
     for (let [id, childServerMapElement] of childServerMap) {
diff --git a/load-balancer/terminal-ui.ts b/load-balancer/terminal-ui.ts
index 4bf6ed4..e7ed59c 100644
--- a/load-balancer/terminal-ui.ts
+++ b/load-balancer/terminal-ui.ts
@@ -407,4 +407,4 @@ class LoadBalancerTerminalUi {
   }
 }
 
-export const terminalUi = new LoadBalancerTerminalUi();
+// export const terminalUi = new LoadBalancerTerminalUi();

From e2917dd3d32352bea8a7d41f8b75443b4ddadb0c Mon Sep 17 00:00:00 2001
From: Ryan Enns <ryanennns@gmail.com>
Date: Mon, 23 Mar 2026 08:30:43 -0400
Subject: [PATCH 30/32] (((panick)))

---
 _test-harness/index.ts                       | 10 +--
 chat-client/src/Monitor.tsx                  | 17 +++--
 chat-server/index.ts                         | 45 ++++++++++++-
 chat-server/src/utils.ts                     |  8 ++-
 load-balancer/src/controllers/redis.stats.ts |  8 +--
 load-balancer/src/intervals.ts               | 66 ++++++++++----------
 load-balancer/src/utils.ts                   |  4 +-
 packages/shared/src/index.ts                 |  7 ++-
 8 files changed, 103 insertions(+), 62 deletions(-)

diff --git a/_test-harness/index.ts b/_test-harness/index.ts
index c8275ff..b6bb761 100644
--- a/_test-harness/index.ts
+++ b/_test-harness/index.ts
@@ -6,11 +6,11 @@ import type {
 } from "@chat/shared";
 
 const LOAD_BALANCER_URL = "http://localhost:3000";
-const CHATTER_COUNT = 50;
-const CHAT_ROOM_COUNT = 1;
-const MESSAGE_INTERVAL_MIN_MS = 5_000;
-const MESSAGE_INTERVAL_MAX_MS = 15_000;
-const INITIAL_CONNECT_STAGGER_MS = 100;
+const CHATTER_COUNT = 100;
+const CHAT_ROOM_COUNT = 7;
+const MESSAGE_INTERVAL_MIN_MS = 500;
+const MESSAGE_INTERVAL_MAX_MS = 90_000;
+const INITIAL_CONNECT_STAGGER_MS = 15;
 const RECONNECT_DELAY_MS = 100;
 
 type ProvisionedServer = {
diff --git a/chat-client/src/Monitor.tsx b/chat-client/src/Monitor.tsx
index f8dff21..dffc8f2 100644
--- a/chat-client/src/Monitor.tsx
+++ b/chat-client/src/Monitor.tsx
@@ -320,26 +320,25 @@ export function Monitor() {
                     ?.score ?? 0),
               )
               .map((mc) => {
-                const prev = prevMessageCounts.current.find(
-                  (p) => p.value === mc.value,
-                );
-                const delta = prev ? mc.score - prev.score : 0;
+                console.log(stats.servers);
+
+                const delta = mc.score;
 
                 const clients =
                   stats.chatRooms.clientCounts.find((c) => c.value === mc.value)
                     ?.score ?? 0;
 
-                const swps = stats.servers.reduce(
-                  (sum, s) => sum + (s.chatRoomSocketWrites?.[mc.value] ?? 0),
+                const msgs = stats.servers.reduce(
+                  (sum, s) => sum + (s.chatRooms?.[mc.value] ?? 0),
                   0,
                 );
 
                 return (
                   <div key={mc.value} className="room-row">
                     <span className="room-name">{mc.value}</span>
-                    <span className="room-clients">{clients}</span>
-                    <span className="room-msgs">{delta}</span>
-                    <span className="room-swps">{swps}</span>
+                    <span className="room-clients">c:{clients}</span>
+                    <span className="room-msgs">m:{msgs}</span>
+                    <span className="room-swps">s:{delta}</span>
                   </div>
                 );
               })}
diff --git a/chat-server/index.ts b/chat-server/index.ts
index ec357f6..53e2065 100644
--- a/chat-server/index.ts
+++ b/chat-server/index.ts
@@ -5,7 +5,7 @@ import {
   addServerToRedis,
   ChatPayload,
   chatRoomTotalClientsKey,
-  chatRoomTotalMessagesKey,
+  chatRoomSocketWritesPerSecondKey,
   debugLog,
   redisChatCountKeyFactory,
   redisRedistributeChannelFactory,
@@ -18,6 +18,7 @@ import {
   serversHeartbeatKey,
   serversSocketWritesPerSecondKey,
   type WebSocketMessage,
+  chatRoomMessagesPerSecondKey,
 } from "@chat/shared";
 import {
   ClientSocket,
@@ -146,6 +147,7 @@ await subscriber.subscribe(
 );
 
 let socketWritesThisSecond = 0;
+const socketWritesPerChannelThisSecond: Record<string, number> = {};
 const updateMetrics = () => {
   void redisClient.zAdd(serversHeartbeatKey, {
     score: Date.now(),
@@ -156,6 +158,28 @@ const updateMetrics = () => {
     value: serverId,
   });
   socketWritesThisSecond = 0;
+  Object.keys(socketWritesPerChannelThisSecond).forEach((key) => {
+    void redisClient.zAdd(chatRoomSocketWritesPerSecondKey, {
+      score: socketWritesPerChannelThisSecond[key],
+      value: key,
+    });
+    socketWritesPerChannelThisSecond[key] = 0;
+  });
+  Object.keys(messagesSentPerChannelThisSecond).forEach((key) => {
+    // todo -- the obvious problem with this approach is that
+    // for the n number of servers that are receiving messages
+    // for a given chat room, all n of them will be trying
+    // to zAdd simultaneously. This doesn't introduce data
+    // integrity issues I don't think, seeing as they should
+    // all produce the same numbers; but boy oh boy is writing
+    // over the same redis key n times with the same value an
+    // annoying compromise to have to make.
+    void redisClient.zAdd(chatRoomMessagesPerSecondKey, {
+      score: messagesSentPerChannelThisSecond[key],
+      value: key,
+    });
+    messagesSentPerChannelThisSecond[key] = 0;
+  });
   void redisClient.zAdd(serversChatRoomsCountKey, {
     score: chatRoomCount,
     value: serverId,
@@ -212,7 +236,18 @@ const registerSocket = async (
 
       room.queue.push(message);
       if (!room.running) {
-        flushRoom(room, () => socketWritesThisSecond++);
+        flushRoom(room, (socket: ClientSocket) => {
+          socketWritesThisSecond++;
+          if (!socket.chatId) {
+            return;
+          }
+
+          if (!socketWritesPerChannelThisSecond[socket.chatId]) {
+            socketWritesPerChannelThisSecond[socket.chatId] = 0;
+          }
+
+          socketWritesPerChannelThisSecond[socket.chatId] += 1;
+        });
       }
     });
   }
@@ -222,6 +257,7 @@ const registerSocket = async (
   rooms.get(chatChannel)?.clients.add(socket);
 };
 
+const messagesSentPerChannelThisSecond: Record<string, number> = {};
 const publishChat = async (
   message: WebSocketMessage<ChatPayload>,
   socket: ClientSocket,
@@ -230,7 +266,10 @@ const publishChat = async (
     return;
   }
 
-  void redisClient.zIncrBy(chatRoomTotalMessagesKey, 1, socket.chatId);
+  if (!messagesSentPerChannelThisSecond[socket.chatId]) {
+    messagesSentPerChannelThisSecond[socket.chatId] = 0;
+  }
+  messagesSentPerChannelThisSecond[socket.chatId] += 1;
   await redisClient.publish(socket.chatId, JSON.stringify(message.payload));
 };
 
diff --git a/chat-server/src/utils.ts b/chat-server/src/utils.ts
index eec814d..6e32770 100644
--- a/chat-server/src/utils.ts
+++ b/chat-server/src/utils.ts
@@ -1,5 +1,4 @@
 import {
-  debugLog,
   getLowestLoadServer,
   RedistributionPayload,
   Server,
@@ -52,7 +51,10 @@ export const redistributeListener = (message: string) => {
   redistributeBy = Math.floor(Math.max(Number(message) * 0.15, 1));
 };
 
-export const flushRoom = (room: Room, callback: () => void = () => {}) => {
+export const flushRoom = (
+  room: Room,
+  callback: (socket: ClientSocket) => void = () => {},
+) => {
   if (room.queue.length < 1) {
     room.running = false;
 
@@ -80,7 +82,7 @@ export const flushRoom = (room: Room, callback: () => void = () => {}) => {
         } else {
           socket.send(message);
         }
-        callback();
+        callback(socket);
       }
     }
 
diff --git a/load-balancer/src/controllers/redis.stats.ts b/load-balancer/src/controllers/redis.stats.ts
index c0415f3..e0cb6a0 100644
--- a/load-balancer/src/controllers/redis.stats.ts
+++ b/load-balancer/src/controllers/redis.stats.ts
@@ -2,7 +2,7 @@ import type { Request, Response } from "express";
 import { childServerMap, redisClient } from "../utils.ts";
 import {
   serversHeartbeatKey,
-  chatRoomTotalMessagesKey,
+  chatRoomSocketWritesPerSecondKey,
   chatRoomTotalClientsKey,
 } from "@chat/shared";
 
@@ -11,7 +11,7 @@ export const redisStats = async (_req: Request, res: Response) => {
 
   const [heartbeats, messageCounts, clientCounts] = await Promise.all([
     redisClient.zRangeWithScores(serversHeartbeatKey, 0, -1),
-    redisClient.zRangeWithScores(chatRoomTotalMessagesKey, 0, -1),
+    redisClient.zRangeWithScores(chatRoomSocketWritesPerSecondKey, 0, -1),
     redisClient.zRangeWithScores(chatRoomTotalClientsKey, 0, -1),
   ]);
 
@@ -30,14 +30,14 @@ export const redisStats = async (_req: Request, res: Response) => {
       id,
       url: server.url,
       clients: state.clients[last] ?? 0,
-      chatRooms: state.chatRooms,
+      chatRooms: state.chatRoomMessages,
       chatRoomSocketWrites,
       mps: state.socketWrites[last] ?? 0,
       eventLoopTimeout: state.timeouts[last] ?? 0,
       heartbeatAgeMs: now - (heartbeatMap.get(id) ?? 0),
       history: {
         clients: state.clients,
-        chatRooms: state.chatRooms,
+        chatRooms: state.chatRoomMessages,
         socketWrites: state.socketWrites,
         timeouts: state.timeouts,
         chatRoomSocketWrites: Object.fromEntries(
diff --git a/load-balancer/src/intervals.ts b/load-balancer/src/intervals.ts
index 1628e3d..7e1bbca 100644
--- a/load-balancer/src/intervals.ts
+++ b/load-balancer/src/intervals.ts
@@ -6,7 +6,8 @@ import {
   serverBlacklist,
 } from "./utils.ts";
 import {
-  chatRoomTotalMessagesKey,
+  chatRoomMessagesPerSecondKey,
+  chatRoomSocketWritesPerSecondKey,
   type HistoryKey,
   NumericList,
   redisServerKeyFactory,
@@ -80,7 +81,7 @@ const updateServerStateHistoryArray = (
 
 const setServerChatRoomState = (id: string, value: Record<string, number>) => {
   if (childServerMap.has(id)) {
-    childServerMap.get(id)!.state["chatRooms"] = value;
+    childServerMap.get(id)!.state["chatRoomMessages"] = value;
   }
 };
 
@@ -111,43 +112,40 @@ export const healthChecks = async () => {
   timeoutValues.forEach(({ value: id, score: timeout }) =>
     updateServerStateHistoryArray(id, "timeouts", timeout),
   );
-  const chatRoomMessages = await redisClient.zRangeWithScores(
-    chatRoomTotalMessagesKey,
-    0,
-    -1,
-  );
-  chatRoomMessages.forEach(({ value: id, score: totalMessages }) =>
-    updateServerStateHistoryArray(id, "messages", totalMessages),
-  );
 
-  for (const c of [...childServerMap.values()]) {
-    const redisData = await redisClient.hGetAll(
-      redisServerKeyFactory(c.server.id),
-    );
-    const chatKeys = Object.keys(redisData).filter((k) => k.includes("chat:"));
-    const keyValuePairs: Record<string, number> = {};
-
-    for (let chatKey of chatKeys) {
-      keyValuePairs[chatKey.split("chat:")[1]] = Number(redisData[chatKey]);
-    }
-
-    setServerChatRoomState(c.server.id, keyValuePairs);
-  }
+  // const redisData = await redisClient.zRangeWithScores(
+  //     chatRoomMessagesPerSecondKey,
+  //     0,
+  //     -1,
+  // );
+  // redisData.forEach(({value:id,score:messagesPerSecond}) => {
+  //   childServerMap()
+  // })
+
+  // for (const c of [...childServerMap.values()]) {
+  //
+  //   const chatKeys = Object.keys(redisData).filter((k) => k.includes("chat:"));
+  //   const keyValuePairs: Record<string, number> = {};
+  //
+  //   for (let chatKey of chatKeys) {
+  //     keyValuePairs[chatKey.split("chat:")[1]] = Number(redisData[chatKey]);
+  //   }
+  //
+  //   setServerChatRoomState(c.server.id, keyValuePairs);
+  // }
 
   for (const c of [...childServerMap.values()]) {
-    for (let chatRoomKey in c.state.chatRooms) {
+    for (let chatRoomKey in c.state.chatRoomMessages) {
       const list = chatRoomClientHistory[chatRoomKey] ?? new NumericList();
-      const chats = list.deltas()[list.length - 1] ?? 0;
-      const clients = c.state.chatRooms[chatRoomKey]
-
-      const socketWrites = chats * clients;
 
       if (!c.state.chatRoomSocketWrites[chatRoomKey]) {
-        c.state.chatRoomSocketWrites[chatRoomKey] = new NumericList(...Array.from({length:100}).map(() => 0))
+        c.state.chatRoomSocketWrites[chatRoomKey] = new NumericList(
+          ...Array.from({ length: 100 }).map(() => 0),
+        );
       }
 
-      c.state.chatRoomSocketWrites[chatRoomKey].shift()
-      c.state.chatRoomSocketWrites[chatRoomKey].push(socketWrites);
+      c.state.chatRoomSocketWrites[chatRoomKey].shift();
+      c.state.chatRoomSocketWrites[chatRoomKey].push(list[list.length - 1]);
     }
   }
 
@@ -197,13 +195,15 @@ const syncTerminalUi = () => {
 
 const updateState = async () => {
   const values = await redisClient.zRangeWithScores(
-    chatRoomTotalMessagesKey,
+    chatRoomSocketWritesPerSecondKey,
     0,
     -1,
   );
   values.forEach(({ value, score }) => {
     if (!chatRoomClientHistory[value]) {
-      chatRoomClientHistory[value] = new NumericList(...Array.from({length:100}).map(() => 0));
+      chatRoomClientHistory[value] = new NumericList(
+        ...Array.from({ length: 100 }).map(() => 0),
+      );
     }
     chatRoomClientHistory[value].shift();
     chatRoomClientHistory[value].push(score);
diff --git a/load-balancer/src/utils.ts b/load-balancer/src/utils.ts
index 6c8f598..5484733 100644
--- a/load-balancer/src/utils.ts
+++ b/load-balancer/src/utils.ts
@@ -4,7 +4,7 @@ import { type ChildProcessWithoutNullStreams, spawn } from "node:child_process";
 import path from "node:path";
 import {
   chatRoomTotalClientsKey,
-  chatRoomTotalMessagesKey,
+  chatRoomSocketWritesPerSecondKey,
   debugLog,
   defaultServerState,
   redisServerKeyFactory,
@@ -54,7 +54,7 @@ export const shutdown = async () => {
       await removeServerFromRedis(id);
       childServerMapElement.process.kill(1);
     }
-    await redisClient.del(chatRoomTotalMessagesKey);
+    await redisClient.del(chatRoomSocketWritesPerSecondKey);
     await redisClient.del(chatRoomTotalClientsKey);
   } catch {
     redisClient.destroy();
diff --git a/packages/shared/src/index.ts b/packages/shared/src/index.ts
index 82f185a..762ad14 100644
--- a/packages/shared/src/index.ts
+++ b/packages/shared/src/index.ts
@@ -35,7 +35,7 @@ export interface ServerState {
   socketWrites: NumericList;
   timeouts: NumericList;
   messages: NumericList;
-  chatRooms: Record<string, number>;
+  chatRoomMessages: Record<string, number>;
   chatRoomSocketWrites: Record<string, NumericList>;
 }
 export const defaultServerState = (): ServerState => ({
@@ -43,7 +43,7 @@ export const defaultServerState = (): ServerState => ({
   socketWrites: new NumericList(...Array.from({ length: 100 }).map(() => 0)),
   timeouts: new NumericList(...Array.from({ length: 100 }).map(() => 0)),
   messages: new NumericList(...Array.from({ length: 100 }).map(() => 0)),
-  chatRooms: {},
+  chatRoomMessages: {},
   chatRoomSocketWrites: {},
 });
 
@@ -53,7 +53,8 @@ export const serversChatRoomsCountKey = "servers:chats";
 export const serversHeartbeatKey = "servers:heartbeat";
 export const serversSocketWritesPerSecondKey = "servers:swps";
 export const serversEventLoopTimeoutKey = "servers:event-loop";
-export const chatRoomTotalMessagesKey = "chat-rooms:messages";
+export const chatRoomSocketWritesPerSecondKey = "chat-rooms:socket-writes";
+export const chatRoomMessagesPerSecondKey = "chat-rooms:messages";
 export const chatRoomTotalClientsKey = "chat-rooms:clients";
 export const redisRedistributeChannelFactory = (serverId: string) =>
   `${serverId}-${redistributeChannel}`;

From 8efedf147f743b9493645fcba2b6827e74ecf962 Mon Sep 17 00:00:00 2001
From: Ryan Enns <ryanennns@gmail.com>
Date: Mon, 23 Mar 2026 08:55:43 -0400
Subject: [PATCH 31/32] store chat room state in load balancer

---
 load-balancer/src/controllers/redis.stats.ts | 61 ++++++-------
 load-balancer/src/intervals.ts               | 93 ++++++++------------
 load-balancer/src/state.ts                   |  8 +-
 packages/shared/src/index.ts                 |  4 -
 schema.json                                  | 25 ++++++
 5 files changed, 96 insertions(+), 95 deletions(-)
 create mode 100644 schema.json

diff --git a/load-balancer/src/controllers/redis.stats.ts b/load-balancer/src/controllers/redis.stats.ts
index e0cb6a0..9c5bb6d 100644
--- a/load-balancer/src/controllers/redis.stats.ts
+++ b/load-balancer/src/controllers/redis.stats.ts
@@ -1,71 +1,64 @@
 import type { Request, Response } from "express";
 import { childServerMap, redisClient } from "../utils.ts";
-import {
-  serversHeartbeatKey,
-  chatRoomSocketWritesPerSecondKey,
-  chatRoomTotalClientsKey,
-} from "@chat/shared";
+import { serversHeartbeatKey } from "@chat/shared";
+import { chatRooms } from "../state.ts";
 
 export const redisStats = async (_req: Request, res: Response) => {
   const now = Date.now();
 
-  const [heartbeats, messageCounts, clientCounts] = await Promise.all([
-    redisClient.zRangeWithScores(serversHeartbeatKey, 0, -1),
-    redisClient.zRangeWithScores(chatRoomSocketWritesPerSecondKey, 0, -1),
-    redisClient.zRangeWithScores(chatRoomTotalClientsKey, 0, -1),
-  ]);
-
+  const heartbeats = await redisClient.zRangeWithScores(
+    serversHeartbeatKey,
+    0,
+    -1,
+  );
   const heartbeatMap = new Map(heartbeats.map((e) => [e.value, e.score]));
 
   const servers = [...childServerMap.entries()].map(([id, child]) => {
     const { state, server } = child;
     const last = state.clients.length - 1;
-    const chatRoomSocketWrites = Object.fromEntries(
-      Object.entries(state.chatRoomSocketWrites).map(([room, list]) => [
-        room,
-        list[list.length - 1] ?? 0,
-      ]),
-    );
     return {
       id,
       url: server.url,
       clients: state.clients[last] ?? 0,
-      chatRooms: state.chatRoomMessages,
-      chatRoomSocketWrites,
-      mps: state.socketWrites[last] ?? 0,
+      socketWritesPerSecond: state.socketWrites[last] ?? 0,
       eventLoopTimeout: state.timeouts[last] ?? 0,
       heartbeatAgeMs: now - (heartbeatMap.get(id) ?? 0),
       history: {
         clients: state.clients,
-        chatRooms: state.chatRoomMessages,
         socketWrites: state.socketWrites,
         timeouts: state.timeouts,
-        chatRoomSocketWrites: Object.fromEntries(
-          Object.entries(state.chatRoomSocketWrites).map(([room, list]) => [
-            room,
-            [...list],
-          ]),
-        ),
       },
     };
   });
 
   servers.sort((a, b) => a.id.localeCompare(b.id));
 
+  const chatRoomList = [...chatRooms.entries()].map(([id, room]) => {
+    const last = room.clients.length - 1;
+    return {
+      id,
+      clients: room.clients[last] ?? 0,
+      messagesPerSecond: room.messagesPerSecond[last] ?? 0,
+      socketWritesPerSecond: room.socketWritesPerSecond[last] ?? 0,
+      history: {
+        clients: room.clients,
+        messagesPerSecond: room.messagesPerSecond,
+        socketWritesPerSecond: room.socketWritesPerSecond,
+      },
+    };
+  });
+
   res.json({
     ts: now,
     servers,
+    chatRooms: chatRoomList,
     totals: {
       clients: servers.reduce((s, sv) => s + sv.clients, 0),
-      chatRooms: servers.reduce(
-        (s, sv) => s + Object.values(sv.chatRooms).length,
+      chatRooms: chatRoomList.length,
+      socketWritesPerSecond: chatRoomList.reduce(
+        (s, r) => s + r.socketWritesPerSecond,
         0,
       ),
-      mps: servers.reduce((s, sv) => s + sv.mps, 0),
-    },
-    chatRooms: {
-      messageCounts,
-      clientCounts,
     },
   });
 };
diff --git a/load-balancer/src/intervals.ts b/load-balancer/src/intervals.ts
index 7e1bbca..e7ce0db 100644
--- a/load-balancer/src/intervals.ts
+++ b/load-balancer/src/intervals.ts
@@ -8,6 +8,7 @@ import {
 import {
   chatRoomMessagesPerSecondKey,
   chatRoomSocketWritesPerSecondKey,
+  chatRoomTotalClientsKey,
   type HistoryKey,
   NumericList,
   redisServerKeyFactory,
@@ -17,7 +18,7 @@ import {
   serversHeartbeatKey,
   serversSocketWritesPerSecondKey,
 } from "@chat/shared";
-import { chatRoomClientHistory } from "./state.ts";
+import { type ChatRoomState, chatRooms } from "./state.ts";
 
 const PPS_SURGE_THRESHOLD = 40;
 
@@ -79,12 +80,6 @@ const updateServerStateHistoryArray = (
   childServerMap.get(id)?.state[key]?.push(value);
 };
 
-const setServerChatRoomState = (id: string, value: Record<string, number>) => {
-  if (childServerMap.has(id)) {
-    childServerMap.get(id)!.state["chatRoomMessages"] = value;
-  }
-};
-
 export const healthChecks = async () => {
   // socket writes
   const socketWrites = await redisClient.zRangeWithScores(
@@ -113,42 +108,6 @@ export const healthChecks = async () => {
     updateServerStateHistoryArray(id, "timeouts", timeout),
   );
 
-  // const redisData = await redisClient.zRangeWithScores(
-  //     chatRoomMessagesPerSecondKey,
-  //     0,
-  //     -1,
-  // );
-  // redisData.forEach(({value:id,score:messagesPerSecond}) => {
-  //   childServerMap()
-  // })
-
-  // for (const c of [...childServerMap.values()]) {
-  //
-  //   const chatKeys = Object.keys(redisData).filter((k) => k.includes("chat:"));
-  //   const keyValuePairs: Record<string, number> = {};
-  //
-  //   for (let chatKey of chatKeys) {
-  //     keyValuePairs[chatKey.split("chat:")[1]] = Number(redisData[chatKey]);
-  //   }
-  //
-  //   setServerChatRoomState(c.server.id, keyValuePairs);
-  // }
-
-  for (const c of [...childServerMap.values()]) {
-    for (let chatRoomKey in c.state.chatRoomMessages) {
-      const list = chatRoomClientHistory[chatRoomKey] ?? new NumericList();
-
-      if (!c.state.chatRoomSocketWrites[chatRoomKey]) {
-        c.state.chatRoomSocketWrites[chatRoomKey] = new NumericList(
-          ...Array.from({ length: 100 }).map(() => 0),
-        );
-      }
-
-      c.state.chatRoomSocketWrites[chatRoomKey].shift();
-      c.state.chatRoomSocketWrites[chatRoomKey].push(list[list.length - 1]);
-    }
-  }
-
   await detectTimedOutServers();
   purgeBlacklistedServers();
 
@@ -193,20 +152,42 @@ const syncTerminalUi = () => {
   // });
 };
 
+const ensureChatRoom = (id: string): ChatRoomState => {
+  if (!chatRooms.has(id)) {
+    const empty = () =>
+      new NumericList(...Array.from({ length: 100 }).map(() => 0));
+    chatRooms.set(id, {
+      clients: empty(),
+      messagesPerSecond: empty(),
+      socketWritesPerSecond: empty(),
+    });
+  }
+  return chatRooms.get(id)!;
+};
+
 const updateState = async () => {
-  const values = await redisClient.zRangeWithScores(
-    chatRoomSocketWritesPerSecondKey,
-    0,
-    -1,
-  );
-  values.forEach(({ value, score }) => {
-    if (!chatRoomClientHistory[value]) {
-      chatRoomClientHistory[value] = new NumericList(
-        ...Array.from({ length: 100 }).map(() => 0),
-      );
-    }
-    chatRoomClientHistory[value].shift();
-    chatRoomClientHistory[value].push(score);
+  const [socketWrites, messages, clients] = await Promise.all([
+    redisClient.zRangeWithScores(chatRoomSocketWritesPerSecondKey, 0, -1),
+    redisClient.zRangeWithScores(chatRoomMessagesPerSecondKey, 0, -1),
+    redisClient.zRangeWithScores(chatRoomTotalClientsKey, 0, -1),
+  ]);
+
+  socketWrites.forEach(({ value: id, score }) => {
+    const room = ensureChatRoom(id);
+    room.socketWritesPerSecond.shift();
+    room.socketWritesPerSecond.push(score);
+  });
+
+  messages.forEach(({ value: id, score }) => {
+    const room = ensureChatRoom(id);
+    room.messagesPerSecond.shift();
+    room.messagesPerSecond.push(score);
+  });
+
+  clients.forEach(({ value: id, score }) => {
+    const room = ensureChatRoom(id);
+    room.clients.shift();
+    room.clients.push(score);
   });
 };
 
diff --git a/load-balancer/src/state.ts b/load-balancer/src/state.ts
index eecf0bf..b202943 100644
--- a/load-balancer/src/state.ts
+++ b/load-balancer/src/state.ts
@@ -1,6 +1,12 @@
 import { NumericList } from "@chat/shared";
 
-export const chatRoomClientHistory: Record<string, NumericList> = {};
+export interface ChatRoomState {
+  clients: NumericList;
+  messagesPerSecond: NumericList;
+  socketWritesPerSecond: NumericList;
+}
+
+export const chatRooms: Map<string, ChatRoomState> = new Map();
 export let lastSpawnedServer = Date.now();
 export const setLastSpawnedServer = (time: number) =>
   (lastSpawnedServer = time);
diff --git a/packages/shared/src/index.ts b/packages/shared/src/index.ts
index 762ad14..df51f38 100644
--- a/packages/shared/src/index.ts
+++ b/packages/shared/src/index.ts
@@ -35,16 +35,12 @@ export interface ServerState {
   socketWrites: NumericList;
   timeouts: NumericList;
   messages: NumericList;
-  chatRoomMessages: Record<string, number>;
-  chatRoomSocketWrites: Record<string, NumericList>;
 }
 export const defaultServerState = (): ServerState => ({
   clients: new NumericList(...Array.from({ length: 100 }).map(() => 0)),
   socketWrites: new NumericList(...Array.from({ length: 100 }).map(() => 0)),
   timeouts: new NumericList(...Array.from({ length: 100 }).map(() => 0)),
   messages: new NumericList(...Array.from({ length: 100 }).map(() => 0)),
-  chatRoomMessages: {},
-  chatRoomSocketWrites: {},
 });
 
 export const redistributeChannel = "wss-redistribute";
diff --git a/schema.json b/schema.json
new file mode 100644
index 0000000..1abe196
--- /dev/null
+++ b/schema.json
@@ -0,0 +1,25 @@
+{
+  "chat_rooms": [
+    {
+      "id": "some-chat",
+      "clients": 0,
+      "messages_per_second": 0,
+      "socket_writes_per_second": 0
+    }
+  ],
+  "servers": [
+    {
+      "id": "some-server",
+      "url": "ws://localhost:8080",
+      "chat_rooms": [
+        {
+          "id": "some-chat",
+          "clients": 0
+        }
+      ],
+      "last_heartbeat": 123,
+      "event_loop_timeout": 2,
+      "cumulative_swps": 0
+    }
+  ]
+}

From a83e9b08d2e4b9bcdfca71282c9578868d7cd42c Mon Sep 17 00:00:00 2001
From: Ryan Enns <ryanennns@gmail.com>
Date: Mon, 23 Mar 2026 09:03:20 -0400
Subject: [PATCH 32/32] client

---
 chat-client/src/App.css     | 11 +++--
 chat-client/src/Monitor.tsx | 94 +++++++++++--------------------------
 2 files changed, 35 insertions(+), 70 deletions(-)

diff --git a/chat-client/src/App.css b/chat-client/src/App.css
index 3243863..56ee6dc 100644
--- a/chat-client/src/App.css
+++ b/chat-client/src/App.css
@@ -113,7 +113,7 @@
 
 .monitor-body {
   display: grid;
-  grid-template-columns: 1fr 220px;
+  grid-template-columns: 1fr 22rem;
   gap: 0.75rem;
   align-items: start;
 }
@@ -164,21 +164,24 @@
 .room-clients {
   color: #7d9fc5;
   font-size: 0.75rem;
-  margin-left: 0.5rem;
+  width: 4rem;
+  text-align: right;
   flex-shrink: 0;
 }
 
 .room-msgs {
   color: #3fb950;
   font-size: 0.75rem;
-  margin-left: 0.5rem;
+  width: 4rem;
+  text-align: right;
   flex-shrink: 0;
 }
 
 .room-swps {
   color: #bc8cff;
   font-size: 0.75rem;
-  margin-left: 0.5rem;
+  width: 4rem;
+  text-align: right;
   flex-shrink: 0;
 }
 
diff --git a/chat-client/src/Monitor.tsx b/chat-client/src/Monitor.tsx
index dffc8f2..e5661e4 100644
--- a/chat-client/src/Monitor.tsx
+++ b/chat-client/src/Monitor.tsx
@@ -2,32 +2,32 @@ import { useEffect, useRef, useState } from "react";
 
 interface ServerHistory {
   clients: number[];
-  chatRooms: number[];
   socketWrites: number[];
   timeouts: number[];
-  chatRoomSocketWrites: Record<string, number[]>;
 }
 
 interface ServerMetrics {
   id: string;
   url: string | null;
   clients: number;
-  chatRooms: Record<string, number>;
-  chatRoomSocketWrites: Record<string, number>;
-  mps: number;
+  socketWritesPerSecond: number;
   eventLoopTimeout: number;
   heartbeatAgeMs: number;
   history: ServerHistory;
 }
 
+interface ChatRoomMetrics {
+  id: string;
+  clients: number;
+  messagesPerSecond: number;
+  socketWritesPerSecond: number;
+}
+
 interface RedisStats {
   ts: number;
   servers: ServerMetrics[];
-  totals: { clients: number; chatRooms: number; mps: number };
-  chatRooms: {
-    messageCounts: { value: string; score: number }[];
-    clientCounts: { value: string; score: number }[];
-  };
+  chatRooms: ChatRoomMetrics[];
+  totals: { clients: number; chatRooms: number; socketWritesPerSecond: number };
 }
 
 const POLL_MS = 1000;
@@ -134,7 +134,7 @@ function ServerCard({ s }: { s: ServerMetrics }) {
         />
         <Graph
           label="swps"
-          current={s.mps}
+          current={s.socketWritesPerSecond}
           data={s.history?.socketWrites ?? []}
           color="#3fb950"
           fmt={(v) => fmt(v)}
@@ -147,21 +147,6 @@ function ServerCard({ s }: { s: ServerMetrics }) {
           fmt={(v) => `${fmt(v)}ms`}
         />
       </div>
-      {s.chatRooms && Object.keys(s.chatRooms).length > 0 && (
-        <div className="server-rooms">
-          {Object.entries(s.chatRooms)
-            .sort(([, a], [, b]) => b - a)
-            .map(([roomId, count]) => (
-              <div key={roomId} className="server-room-row">
-                <span className="server-room-name">{roomId}</span>
-                <span className="server-room-clients">{count}</span>
-                <span className="server-room-swps">
-                  {s.chatRoomSocketWrites?.[roomId] ?? 0} swps
-                </span>
-              </div>
-            ))}
-        </div>
-      )}
     </div>
   );
 }
@@ -245,13 +230,6 @@ export function Monitor() {
     };
   }, []);
 
-  const prevMessageCounts = useRef<typeof stats.chatRooms.messageCounts>([]);
-  useEffect(() => {
-    if (stats) {
-      prevMessageCounts.current = stats.chatRooms.messageCounts;
-    }
-  }, [stats]);
-
   return (
     <div className="monitor">
       <div className="monitor-header">
@@ -270,7 +248,10 @@ export function Monitor() {
             <div className="monitor-totals">
               <Stat label="servers" value={stats.servers.length} />
               <Stat label="clients" value={stats.totals.clients} />
-              <Stat label="total swps" value={fmt(stats.totals.mps)} />
+              <Stat
+                label="total swps"
+                value={fmt(stats.totals.socketWritesPerSecond)}
+              />
               <Stat
                 label="healthy"
                 value={
@@ -308,40 +289,21 @@ export function Monitor() {
 
           <div className="monitor-sidebar">
             <div className="sidebar-title">chat rooms</div>
-            {stats.chatRooms.messageCounts.length === 0 && (
+            {stats.chatRooms.length === 0 && (
               <p className="monitor-empty">no rooms</p>
             )}
-            {[...stats.chatRooms.messageCounts]
-              .sort(
-                (a, b) =>
-                  (stats.chatRooms.clientCounts.find((c) => c.value === b.value)
-                    ?.score ?? 0) -
-                  (stats.chatRooms.clientCounts.find((c) => c.value === a.value)
-                    ?.score ?? 0),
-              )
-              .map((mc) => {
-                console.log(stats.servers);
-
-                const delta = mc.score;
-
-                const clients =
-                  stats.chatRooms.clientCounts.find((c) => c.value === mc.value)
-                    ?.score ?? 0;
-
-                const msgs = stats.servers.reduce(
-                  (sum, s) => sum + (s.chatRooms?.[mc.value] ?? 0),
-                  0,
-                );
-
-                return (
-                  <div key={mc.value} className="room-row">
-                    <span className="room-name">{mc.value}</span>
-                    <span className="room-clients">c:{clients}</span>
-                    <span className="room-msgs">m:{msgs}</span>
-                    <span className="room-swps">s:{delta}</span>
-                  </div>
-                );
-              })}
+            {[...stats.chatRooms]
+              .sort((a, b) => b.clients - a.clients)
+              .map((room) => (
+                <div key={room.id} className="room-row">
+                  <span className="room-name">{room.id}</span>
+                  <span className="room-clients">c:{room.clients}</span>
+                  <span className="room-msgs">m:{room.messagesPerSecond}</span>
+                  <span className="room-swps">
+                    s:{room.socketWritesPerSecond}
+                  </span>
+                </div>
+              ))}
           </div>
         </div>
       )}