[CmdPal][Performance Monitor] Add disk activity monitoring

[JRScott812]

Summary of the Pull Request

PR Checklist

• Closes: Add a disk activity to Performance Monitor in Command Palette #46724

• Communication: I've discussed this with core contributors already. If the work hasn't been agreed, this work might be rejected
• Tests: Added/updated and all pass
  • (All Cmd Pal tests passed, but there were none specifically for Performance Monitor)
• Localization: All end-user-facing strings can be localized
• Dev docs: Added/updated
• New binaries: Added on the required places
  • JSON for signing for new binaries
  • WXS for installer for new binaries and localization folder
  • YML for CI pipeline for new test projects
  • YML for signed pipeline
• Documentation updated: If checked, please file a pull request on our docs repo and link it here: #xxx

Detailed Description of the Pull Request / Additional comments

Added the ability to see the Disk Stats in the Performance Monitor of Command Palette. It is also able to be pinned to the dock. It functions similarly to the Network Stats, in that you can cycle between different disks and can see the read & write speed.

Validation Steps Performed

Ran the dev version of Command Palette and cycled through my devices disk and compared them with Task Manager. Turned on the Dock and compared the values with Task Manager as well on all my disks.

[JRScott812]

@microsoft-github-policy-service agree

[michaeljolley]

/azp run

[azure-pipelines]

Azure Pipelines successfully started running 1 pipeline(s).

[michaeljolley]

/azp run

[azure-pipelines]

Azure Pipelines successfully started running 1 pipeline(s).

[JRScott812]

I realized that there is an error in the file read/write dock widget, where the performance graph, when you click on the widget, won't display.

[JRScott812]

I fixed the template error and consolidated duplicated code

[michaeljolley]

/azp run

[azure-pipelines]

Azure Pipelines successfully started running 1 pipeline(s).

[michaeljolley]

@JRScott812, could we get a screen recording showing this in action?

[JRScott812]

Here is a video I recorded in a fresh Windows Sandbox session:

Screen.Recording.2026-07-07.134144.-.Trim.mp4

Since Windows Sandbox is so barebones and is missing many dependencies, it kept breaking when I clicked on the widgets to see the graphs. So here is a video I recorded on my PC:

Screen.Recording.2026-07-07.134730.mp4

[Copilot]

Pull request overview

Adds disk activity monitoring to the CmdPal Performance Monitor extension, enabling a new Disk widget (including dock/band support) that shows active time plus read/write transfer rates, with configurable display units.

Changes:

• Introduces a Disk metric/widget page (plus commands to cycle disks) and wires it into the main list and dock bands.
• Adds disk performance data collection via new DiskStats (PerfCounters) and a new chart type/color for disk graphs.
• Adds disk speed unit settings and localizable strings/templates for the new UI.

Reviewed changes

Copilot reviewed 13 out of 13 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.PerformanceMonitor/Strings/en-US/Resources.resw	Adds localized strings for Disk widget UI, commands, subtitles, and disk speed unit setting text.
src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.PerformanceMonitor/SpeedUnit.cs	Renames/repurposes the speed unit enum for reuse beyond network.
src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.PerformanceMonitor/SettingsManager.cs	Adds a Disk speed-unit choice setting alongside the existing Network speed unit.
src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.PerformanceMonitor/PerformanceWidgetsPage.cs	Integrates Disk into the widgets list/bands and adds SystemDiskUsageWidgetPage plus shared formatting helpers.
src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.PerformanceMonitor/PerformanceMonitorCommandsProvider.cs	Registers a new Disk dock band command/page and disposes it appropriately.
src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.PerformanceMonitor/Microsoft.CmdPal.Ext.PerformanceMonitor.csproj	Ensures the new Disk adaptive card template is copied to output.
src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.PerformanceMonitor/Icons.cs	Adds read/write icons for disk transfer bands.
src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.PerformanceMonitor/DevHome/Templates/SystemDiskUsageTemplate.json	Adds the adaptive card template for the Disk widget.
src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.PerformanceMonitor/DevHome/Helpers/SystemData.cs	Adds lazy initialization for DiskStats.
src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.PerformanceMonitor/DevHome/Helpers/DiskStats.cs	Implements disk PerfCounter collection, per-disk usage/read/write data, and chart values.
src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.PerformanceMonitor/DevHome/Helpers/DataType.cs	Adds DataType.Disk for the update loop.
src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.PerformanceMonitor/DevHome/Helpers/DataManager.cs	Adds Disk update handling and exposes GetDiskStats().
src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.PerformanceMonitor/DevHome/Helpers/ChartHelper.cs	Adds a disk chart type and styling.

Comments suppressed due to low confidence (1)

src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.PerformanceMonitor/SpeedUnit.cs:9

• The enum summary still says it controls network transmission speed, but SpeedUnit is now used for both network and disk settings. Update the XML doc so it matches current usage.