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gh-135953: Add GIL contention markers to sampling profiler Gecko format - #139485
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pablogsal
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1st1, ZeroIntensity, ambv and ericsnowcurrently
as code ownersOctober 1, 2025 20:23
…o format This commit enhances the Gecko format reporter in the sampling profiler to include markers for GIL acquisition events. The implementation adds: - GIL contention tracking in pystate and ceval_gil - New marker types in the Gecko collector for GIL wait events - External inspection support for reading GIL state - Sample collection of GIL acquisition times and thread states - Comprehensive tests for marker export functionality The markers provide visibility into GIL contention patterns, showing when threads are waiting to acquire the GIL and how long they wait.
pablogsal
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StanFromIreland pushed a commit
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Dec 6, 2025
…o format (python#139485) This commit enhances the Gecko format reporter in the sampling profiler to include markers for GIL acquisition events.
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This commit enhances the Gecko format reporter in the sampling profiler
to include markers for GIL acquisition events. The implementation adds:
The markers provide visibility into GIL contention patterns, showing
when threads are waiting to acquire the GIL and how long they wait.