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flutter / third_party / perfetto / 25b472496ecf77a8a428815088b16b93015d372d
commit25b472496ecf77a8a428815088b16b93015d372d[log] [tgz]
authorLalit Maganti <lalitm@google.com>Thu May 23 14:56:27 2024 +0100
committerLalit Maganti <lalitm@google.com>Thu May 23 14:56:27 2024 +0100
tree765c73c7935b837393b9c314a5a61eae0e20e14f
parent03fe17e0be05dd6c60cf6351a696c1864468b982 [diff]
tp: fix tracking when process reuse happens before ftrace starts

This CL fixes a subtle issue with process tracking when a new process is
spawned *before* we have ftrace events telling us exactly what processes
died and restarted. In this case, we were not correctly creating new
processes based on the parent pid changing. There might still be an edge
case here with processes getting reparented to init but that seems a
very rare edge case so we don't tackle it until we see an example of
that.

Change-Id: Ib68ef1159d852cd33f2761329a349a6045586983
Bug: 339301226
3 files changed
tree: 765c73c7935b837393b9c314a5a61eae0e20e14f
  1. .github/
  2. bazel/
  3. build_overrides/
  4. buildtools/
  5. debian/
  6. docs/
  7. examples/
  8. gn/
  9. include/
  10. infra/
  11. protos/
  12. python/
  13. src/
  14. test/
  15. third_party/
  16. tools/
  17. ui/
  18. .bazelignore
  19. .clang-format
  20. .clang-tidy
  21. .git-blame-ignore-revs
  22. .gitattributes
  23. .gitignore
  24. .gn
  25. .style.yapf
  26. Android.bp
  27. Android.bp.extras
  28. BUILD
  29. BUILD.extras
  30. BUILD.gn
  31. CHANGELOG
  32. codereview.settings
  33. DIR_METADATA
  34. heapprofd.rc
  35. LICENSE
  36. meson.build
  37. METADATA
  38. MODULE_LICENSE_APACHE2
  39. OWNERS
  40. perfetto.rc
  41. PerfettoIntegrationTests.xml
  42. persistent_cfg.pbtxt
  43. PRESUBMIT.py
  44. README.chromium
  45. README.md
  46. TEST_MAPPING
  47. traced_perf.rc
  48. WATCHLISTS
  49. WORKSPACE
README.md

Perfetto - System profiling, app tracing and trace analysis

Perfetto is a production-grade open-source stack for performance instrumentation and trace analysis. It offers services and libraries and for recording system-level and app-level traces, native + java heap profiling, a library for analyzing traces using SQL and a web-based UI to visualize and explore multi-GB traces.

See https://perfetto.dev/docs or the /docs/ directory for documentation.