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flutter / third_party / perfetto / 7c327c2a1433c2a6626f8c96dc255b2d699c829f
commit7c327c2a1433c2a6626f8c96dc255b2d699c829f[log] [tgz]
authorPrimiano Tucci <primiano@google.com>Wed Nov 23 12:24:49 2022 +0000
committerPrimiano Tucci <primiano@google.com>Wed Nov 23 13:37:38 2022 +0000
tree295d794446bb22c320036d014adf887629bd2170
parente9a51fd8a42b9df7ae72e66138f11f40d50d981d [diff]
service: Ensure UUID + add explicit UUID packet

So far we relied on the TraceConfig.trace_uuid_msb/lsb to uniquely
identify a trace. This has several drawbacks:
1. Relies on the fact that the cmdline client sets a UUID in the TraceConfig.
   This doesn't work for other consumers who might not bother with that.
2. Assumes that the UUID never changes. This is true today (including this
   CL) but is going to change in future, when we'll need to regenerate the
   UUID for gap-less trace buffer snapshotting.

Changes of this CL:
- Introduce an explicit TraceUuid packet, which becomes the new authoritative
  source.
- If a consumer specifies a UUID in the TraceConfig, respect that.
- If a consumer doesn't, generate a random UUID in the service.

Bug: 260112703
Test: perfetto_unittests && perfetto_integrationtests
Change-Id: I4f875b14f76a5fbf1846037bd1a8eaba323b123d
19 files changed
tree: 295d794446bb22c320036d014adf887629bd2170
  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. tools/
  16. ui/
  17. .clang-format
  18. .clang-tidy
  19. .git-blame-ignore-revs
  20. .gitattributes
  21. .gitignore
  22. .gn
  23. .style.yapf
  24. Android.bp
  25. Android.bp.extras
  26. BUILD
  27. BUILD.extras
  28. BUILD.gn
  29. CHANGELOG
  30. codereview.settings
  31. DIR_METADATA
  32. heapprofd.rc
  33. LICENSE
  34. meson.build
  35. METADATA
  36. MODULE_LICENSE_APACHE2
  37. OWNERS
  38. perfetto.rc
  39. PerfettoIntegrationTests.xml
  40. PRESUBMIT.py
  41. README.chromium
  42. README.md
  43. TEST_MAPPING
  44. traced_perf.rc
  45. 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.