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flutter / third_party / perfetto / 76788d2edd641c4de9648a0c8121e5cad17495af
commit76788d2edd641c4de9648a0c8121e5cad17495af[log] [tgz]
authorChinglin Yu <chinglinyu@google.com>Wed Feb 21 15:49:43 2024 +0800
committerChinglin Yu <chinglinyu@google.com>Wed Feb 21 15:49:43 2024 +0800
treeb45619111b1bf3107d38cde4b455922164b45ddb
parent9839b4d3c2fa9c0ee650b1d2d60ee0a1f98a1f45 [diff]
Implement clock sync in multi-machine tracing

This revision implements the RelayPort exposed on the producer socket
for synchronization of clocks in multi-machine tracing:

* The RelayPort defines the IPC methods between the tracing service and
the relay service for operations that are specific to multi-machine
tracing (clock synchronization).

* ServiceIPCHostImpl exposes a second IPC service that implements
RelayPort to producer sockets (perfetto::RelayIPCService).

* The relay service connects to the RelayPort using the IPC client
implementation (perfetto::RelayIPCClient). On connected, the relay
service invokes the SyncClock() rpc methods with the tracing service to
capture clock snapshots on the host and client.

* In a tracing session, the tracing service emits the ClockSnapshots
packet for the remote machine and also the ClockSync packet for the
clock offsets of supported clocks.

Bug: 284258446
Test: unit tests and integration tests.

Change-Id: I95015c1e0bc8bec7b82b0fdac897900e0de923b7
33 files changed
tree: b45619111b1bf3107d38cde4b455922164b45ddb
  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. .clang-format
  19. .clang-tidy
  20. .git-blame-ignore-revs
  21. .gitattributes
  22. .gitignore
  23. .gn
  24. .style.yapf
  25. Android.bp
  26. Android.bp.extras
  27. BUILD
  28. BUILD.extras
  29. BUILD.gn
  30. CHANGELOG
  31. codereview.settings
  32. DIR_METADATA
  33. heapprofd.rc
  34. LICENSE
  35. meson.build
  36. METADATA
  37. MODULE_LICENSE_APACHE2
  38. OWNERS
  39. perfetto.rc
  40. PerfettoIntegrationTests.xml
  41. PRESUBMIT.py
  42. README.chromium
  43. README.md
  44. TEST_MAPPING
  45. traced_perf.rc
  46. WATCHLISTS
  47. 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.