Add Linux user_events receiver#2787
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jmacd merged 35 commits intoMay 13, 2026
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Codecov Report❌ Patch coverage is ❌ Your patch check has failed because the patch coverage (69.20%) is below the target coverage (80.00%). You can increase the patch coverage or adjust the target coverage. Additional details and impacted files@@ Coverage Diff @@
## main #2787 +/- ##
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- Coverage 86.03% 85.90% -0.13%
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Files 720 725 +5
Lines 273264 275313 +2049
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+ Hits 235095 236521 +1426
- Misses 37645 38268 +623
Partials 524 524
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Partial review. This is super!
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Co-authored-by: Utkarsh Umesan Pillai <66651184+utpilla@users.noreply.github.com>
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…ecoder coverage, require user_events_linux_smoke in CI
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@copilot resolve the merge conflicts in this pull request |
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This is great to see. I would request that for the many TODOs in this code that we open issues to explain -- I'm curious for more information about them all.
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Change Summary
Split out from the original combined PR #2717.
Adds a contrib receiver for Linux user_events tracepoints.
The receiver supports two decode formats:
tracefs: generic Linux tracepoint decoding based on the static schema exposed in tracefs format files.event_header: decodes self-describing EventHeader payloads. EventHeader comes from the Microsoft LinuxTracepoints-Rust project, but is open and usable by any producer.The receiver uses
one_collectforperf/user_eventscollection, and supports single or multiple subscriptions, batching, late registration, and basic receiver metrics. It is behind theuserevents-receiverfeature flag.Also adds a Linux CI smoke test that registers and reads both tracefs and EventHeader user_events tracepoints when kernel support is available.
What issue does this PR close?
How are these changes tested?
Added Linux CI smoke test
Are there any user-facing changes?
Yes, a receiver.