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chore: Add logging to investigate issue that different CPU frequency is reported on windows(arm64) - #3298

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filzrev wants to merge 1 commit into
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filzrev:chore-add-logs-for-issue-3285
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filzrev wants to merge 1 commit into
dotnet:masterfrom
filzrev:chore-add-logs-for-issue-3285

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@filzrev

@filzrev filzrev commented Oct 17, 2026 •

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This PR modify CpuDetectorTests and add logging to investigate #3285.
By this logging, it can confirm what's CPU frequency is shown on systeminfo command.

Cobalt 100 processor is expected to be 3.40 GHz.
But sometimes it's reported as 2.85 GHz on registry-based implementation.

It might be difference between registry/CIM

  • Data Source of CPU frequency
  • Data Update Timing (Registry info might not be updated after OS boot)

@filzrev

filzrev commented Oct 17, 2026

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Close this PR.

Because it can be reproduced on forked CI side.

Output of systeminfo

Processor(s):                  1 Processor(s) Installed.
                                      [01]: ARMv8 (64-bit) Family 8 Model D49 Revision   0 MICROSOFT CORPORATION ~3399 Mhz

it looks like CPU frequency is correctly recognized on Windows side.
But registry-based implementation report as 3.31 GHz.

@filzrev filzrev closed this Oct 17, 2026
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