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flutter / third_party / perfetto / b502dde01a2dd1630ced947e7722d55dafd97970
commitb502dde01a2dd1630ced947e7722d55dafd97970[log] [tgz]
authorPrimiano Tucci <primiano@google.com>Tue Oct 29 22:13:24 2019 +0100
committerPrimiano Tucci <primiano@google.com>Tue Oct 29 22:13:24 2019 +0100
treedbb0a52f48b9223aae3f2f05cc3ed44267854696
parent11a79e755c5e6ca1e548481b7c2b0426d4c8d9c0 [diff]
UI; unify File/ArrayBuffer/fetch() into TraceStream

This CL unifies the three code paths for loading traces
introducing a TraceStream class. This class exposes
a unified interface for loading a trace in chunks and
provides three implementations for opening a trace from:
(1) A File object; (2) An ArrayBuffer (for window.open());
(3) A url.
Also this CL passes WASM input on a dedicated buffer
rather than on the WASM stack. This allows the bump the
chunk size when loading from file from 1MB to 32MB, upping
significantly the trace load speed because of hitting
JS <> WASM rundtrips less frequently.

Bug: 143074239
Change-Id: I97660b47d26378428be514fc79667cf9408dbdfe
9 files changed
tree: dbb0a52f48b9223aae3f2f05cc3ed44267854696
  1. bazel/
  2. build_overrides/
  3. buildtools/
  4. debian/
  5. docs/
  6. gn/
  7. include/
  8. infra/
  9. protos/
  10. src/
  11. test/
  12. tools/
  13. ui/
  14. .clang-format
  15. .gitignore
  16. .gn
  17. .style.yapf
  18. Android.bp
  19. Android.bp.extras
  20. BUILD
  21. BUILD.extras
  22. BUILD.gn
  23. codereview.settings
  24. heapprofd.rc
  25. MODULE_LICENSE_APACHE2
  26. NOTICE
  27. OWNERS
  28. perfetto.rc
  29. PRESUBMIT.py
  30. README.chromium
  31. README.md
  32. TEST_MAPPING
  33. WORKSPACE
README.md

Perfetto - Performance instrumentation and tracing

Perfetto is an open-source project for performance instrumentation and tracing of Linux/Android/Chrome platforms and user-space apps.

See www.perfetto.dev for docs.

Bugs

  • For bugs affecting Android or the tracing internals use the internal bug tracker (go/perfetto-bugs).
  • For bugs affecting Chrome use http://crbug.com, Component:Speed>Tracing label:Perfetto.

Community

You can reach us on our Discord channel. If you prefer using IRC we have an experimental Discord <> IRC bridge synced with #perfetto-dev on Freenode.