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Resource Monitoring metrics for Windows report utilization in the [0,100] range #5472

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evgenyfedorov2 opened this issue Oct 6, 2024 · 0 comments · May be fixed by #5473
Open

Resource Monitoring metrics for Windows report utilization in the [0,100] range #5472

evgenyfedorov2 opened this issue Oct 6, 2024 · 0 comments · May be fixed by #5473
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area-resourcemonitoring bug This issue describes a behavior which is not expected - a bug. work in progress 🚧

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@evgenyfedorov2
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evgenyfedorov2 commented Oct 6, 2024

Description

Metrics on Windows report values in the [0,100] range despite the documentation mentioning the [0,1] range:
https://learn.microsoft.com/en-us/dotnet/core/diagnostics/built-in-metrics-diagnostics#metric-containercpulimitutilization

For example, if container CPU limit utilization is 60%, the metric reports the 60 value instead of 0.6.

Affected metrics:

  1. dotnet.process.memory.virtual.utilization
  2. process.cpu.utilization
  3. container.memory.limit.utilization
  4. container.cpu.limit.utilization

Reproduction Steps

Just use Resource Monitoring library on Windows and an exporter for the affected metrics, and you will see the incorrect values.

Expected behavior

Metrics on Windows report values in the [0,1] range as documented. For example, if container CPU limit utilization is 60%, the metric should report the 0.6 value

Actual behavior

Metrics on Windows report values in the [0,100] range. For example, if container CPU limit utilization is 60%, the metric reports the 60 value

Regression?

No, it behaves like that since the introduction in #5290

Known Workarounds

No response

Configuration

No response

Other information

No response

@evgenyfedorov2 evgenyfedorov2 added untriaged bug This issue describes a behavior which is not expected - a bug. labels Oct 6, 2024
@evgenyfedorov2 evgenyfedorov2 self-assigned this Oct 6, 2024
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Labels
area-resourcemonitoring bug This issue describes a behavior which is not expected - a bug. work in progress 🚧
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