Implement PEP 799 – A dedicated profiling package for organizing Python profiling tools · Issue #138122 · python/cpython · GitHub

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Implement PEP 799 – A dedicated profiling package for organizing Python profiling tools #138122

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Implement PEP 799 – A dedicated profiling package for organizing Python profiling tools#138122

2 / 32 of 3 issues completed

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3.15pre-release feature fixes, bugs and security fixespre-release feature fixes, bugs and security fixespendingThe issue will be closed if no feedback is providedThe issue will be closed if no feedback is providedstdlibStandard Library Python modules in the Lib/ directoryStandard Library Python modules in the Lib/ directorytopic-profilingtriagedThe issue has been accepted as valid by a triager.The issue has been accepted as valid by a triager.type-featureA feature request or enhancementA feature request or enhancement

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pablogsal

opened on Aug 24, 2025

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Issue to collect all PRs for the implementation of PEP-799

Linked PRs

• gh-138122: Implement PEP 799 #138142
• gh-138122: Use profiling.sampling in the documentation (PEP 799) #138389
• gh-138122: Allow to filter by thread in tachyon's flamegraph #139216
• gh-138122: Improve the profiling section in the 3.15 what's new document #140156
• gh-138122: Refactor the CLI of profiling.sampling into subcommands #141813
• gh-138122: Fix permission error detection in tachyon's test #141897
• gh-138122: Add thread status statistics to flamegraph profiler #141900
• gh-138122: Don't sample partial frame chains #141912
• gh-138122: Split Modules/_remote_debugging_module.c into multiple files #141934
• gh-138122: New Tachyon UI #142116
• gh-138122: Implement frame caching in RemoteUnwinder to reduce memory reads #142137
• gh-138122: Small fixes to the new tachyon UI #142157
• gh-138122: Add inverted flamegraph #142288
• gh-138122: Integrate live profiler TUI with _colorize theming system #142360
• gh-138122: Make sampling profiler integration tests more resilient #142382
• gh-138122: Make the tachyon profiler opcode-aware #142394
• gh-138122: Fix unused variable warning in threads.c #142425
• gh-138122: Add exception profiling mode to the sampling profiler #142561
• gh-138122: Make Tachyon flamegraph and heatmap output more similar #142590
• gh-138122: Tachyon heatmap: Make toggle switches keyboard accessible #142601
• gh-138122: Add code examples to the profiling.sampling ddocs #142609
• gh-138122: Add docs button to Tachyon heatmap and flamegraph #142614
• gh-138122: Add --subprocesses flag to profile child processes in tachyon #142636
• GH-141565: Add async code awareness to Tachyon #141533
• gh-138122: Tachyon Flamegraph: Make toggle keyboard accesible and adjust sidebar collapse CSS #142638
• GH-142646: Update Tachyon to use backtick formatting in CLI help #142647
• GH-142591: Tachyon does not handle non-existent file/module #142592
• gh-138122: Add some screenshots to the profiling.sampling docs #142676
• gh-138122: Fix sample counting for filtered profiling modes #142677
• gh-138122: Allow tachyon to write and read binary output #142730
• gh-138122: Add sampling profiler visualisation to docs #142772
• gh-138122: Update Tachyon dark theme colors #142841
• gh-138122: Validate base frame before caching in remote debugging frame cache #142852
• gh-138122: Improve bytecode panel #142910
• gh-138122: Add blocking mode for accurate stack traces in Tachyon #142998
• gh-138122: Replace --interval with --sampling-rate #143085
• gh-138122: Extend binary profiling format with full source location and opcode #143088
• gh-138122: Remove default duration for statistical profiling #143174
• gh-138122: Convert GIL/GC/exception stats from tiles to progress bars #143177
• gh-142927: Auto-open HTML output in browser after generation #143178
• gh-138122: fix AC warnings in Modules/_remote_debugging/module.c #143218
• gh-138122: Move local imports to module level in sampling profiler #143257
• gh-138122: Skip threads on EPERM in blocking mode profiler #143368
• gh-138122: Default highlight to sh #143782
• gh-138122: Add differential flame graph #145785

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3.15pre-release feature fixes, bugs and security fixespre-release feature fixes, bugs and security fixespendingThe issue will be closed if no feedback is providedThe issue will be closed if no feedback is providedstdlibStandard Library Python modules in the Lib/ directoryStandard Library Python modules in the Lib/ directorytopic-profilingtriagedThe issue has been accepted as valid by a triager.The issue has been accepted as valid by a triager.type-featureA feature request or enhancementA feature request or enhancement

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