From d9c2cb67adb12e7a247a4d8226beffb9ec46c11b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Turhan=20G=C3=BCnd=C3=BCzo=C4=9Flu?=
 <220315031@ogr.cbu.edu.tr>
Date: Tue, 7 Apr 2026 18:34:09 +0300
Subject: [PATCH] Add performance tracking decorator

This decorator tracks the performance of a function by measuring its execution time and memory usage.
---
 Week04/decorators_turhan_gunduzoglu.py | 34 ++++++++++++++++++++++++++
 1 file changed, 34 insertions(+)
 create mode 100644 Week04/decorators_turhan_gunduzoglu.py

diff --git a/Week04/decorators_turhan_gunduzoglu.py b/Week04/decorators_turhan_gunduzoglu.py
new file mode 100644
index 00000000..a121f83c
--- /dev/null
+++ b/Week04/decorators_turhan_gunduzoglu.py
@@ -0,0 +1,34 @@
+import time
+import tracemalloc
+
+def performance(fn):
+    """A decorator to measure the performance (time and memory usage) of a function."""
+    # Static variables for performance tracking
+    if not hasattr(performance, "counter"):
+        performance.counter = 0
+        performance.total_time = 0
+        performance.total_mem = 0
+
+    def wrapper(*args, **kwargs):
+        # Increment the call counter
+        performance.counter += 1
+
+        # Start tracking memory and time
+        tracemalloc.start()
+        start_time = time.time()
+
+        # Execute the decorated function
+        result = fn(*args, **kwargs)
+
+        # Stop tracking memory and calculate elapsed time
+        end_time = time.time()
+        current, peak = tracemalloc.get_traced_memory()
+        tracemalloc.stop()
+
+        # Update total memory and time
+        performance.total_mem += peak
+        performance.total_time += (end_time - start_time)
+
+        return result
+
+    return wrapper