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[receiver/windowsperfcounters] Clarify current treatment of the _Total instance #33692

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pjanotti
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Description:
Clarifies the current treatment of the _Total instances.

Link to tracking Issue:
Fix #29054

Testing:
Manually validated the configuration added to the README.md

Documentation:
Described the behavior of the _Total instance as currently implemented.

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cc @alxbl @crobert-1

@pjanotti pjanotti changed the title Clarify current treatment of the _Total instance [receiver/windowsperfcounters] Clarify current treatment of the _Total instance Jun 21, 2024
metric: processor.time.total
```

> [!WARNING]
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This actually gives an idea to how better handle counters that don't use _Total for their aggregation. We can have a configuration called something like aggregation_name, that by default is _Total, if someone is using a counter that uses a different name for the aggregation instance we let them specify so the problem of double counting can be easily solved.

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The aggregation_name would be used to decide which instance to drop from a wildcard collection? That makes sense to me.

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Yes, so it keeps the current default behavior, but, if some user wants to drop the _Global_ they add that to the configuration.

@crobert-1 crobert-1 added Skip Changelog PRs that do not require a CHANGELOG.md entry documentation Improvements or additions to documentation labels Jun 21, 2024
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Thanks for adding more documentation here @pjanotti! Just had some formatting comments/questions.

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pjanotti and others added 4 commits June 21, 2024 11:14
Co-authored-by: Curtis Robert <crobert@splunk.com>
…n' of github.com:pjanotti/opentelemetry-service-contrib into windows-perf-counters-aggregation-instance-clarification
@crobert-1 crobert-1 added the ready to merge Code review completed; ready to merge by maintainers label Jun 21, 2024
@dmitryax dmitryax merged commit baebad7 into open-telemetry:main Jun 25, 2024
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@github-actions github-actions bot added this to the next release milestone Jun 25, 2024
tomasmota pushed a commit to SpringerPE/opentelemetry-collector-contrib that referenced this pull request Jul 1, 2024
…al` instance (open-telemetry#33692)

**Description:**
Clarifies the current treatment of the `_Total` instances. 

**Link to tracking Issue:**
Fix open-telemetry#29054

**Testing:**
Manually validated the configuration added to the README.md

**Documentation:**
Described the behavior of the `_Total` instance as currently
implemented.

---------

Co-authored-by: Curtis Robert <crobert@splunk.com>
lalith47 pushed a commit to lalith47/opentelemetry-collector-contrib that referenced this pull request Jul 1, 2024
…al` instance (open-telemetry#33692)

**Description:**
Clarifies the current treatment of the `_Total` instances. 

**Link to tracking Issue:**
Fix open-telemetry#29054

**Testing:**
Manually validated the configuration added to the README.md

**Documentation:**
Described the behavior of the `_Total` instance as currently
implemented.

---------

Co-authored-by: Curtis Robert <crobert@splunk.com>
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[receiver/windowsperfcounters] Instance wildcard doesn't capture _Total instance
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