Fix ruby sampler metrics
What does this MR do?
Cleanup ruby sampler metrics
- Use a simple counter for sampler duration instead of a histogram.
- Use a counter to collect GC time.
- Cleanup metric names to match Prometheus conventions.
- Prefix generic GC stats with
gc_stat. - Include worker label on memory and file descriptor metrics.
Are there points in the code the reviewer needs to double check?
Why was this MR needed?
Does this MR meet the acceptance criteria?
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Changelog entry added, if necessary -
Documentation created/updated -
API support added -
Tests added for this feature/bug - Conform by the code review guidelines
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Has been reviewed by a UX Designer -
Has been reviewed by a Frontend maintainer -
Has been reviewed by a Backend maintainer -
Has been reviewed by a Database specialist
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Conform by the merge request performance guides -
Conform by the style guides -
If you have multiple commits, please combine them into a few logically organized commits by squashing them -
Internationalization required/considered -
End-to-end tests pass ( package-and-qamanual pipeline job)
What are the relevant issue numbers?
Edited by Yorick Peterse