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gerrit-public.fairphone.software / platform / external / perfetto / 1f14b621554e89efe0294dbdd83d7e6ac823790c
commit1f14b621554e89efe0294dbdd83d7e6ac823790c[log] [tgz]
authorHector Dearman <hjd@google.com>Tue Feb 27 11:17:37 2018 +0000
committerHector Dearman <hjd@google.com>Tue Feb 27 11:17:37 2018 +0000
tree842fc06ea802fd1bcbc9f023577e96a0ab522d83
parent94efaeb36ae65a78a178fd8483c0ef7f0049eeca [diff]
ftrace_reader: Plumb overwrite from page header

The ftrace page header includes a field named "overwrite" which is in some way
related to the number of events overwritten. This plumbs that value to the
FtraceProtoBundle proto. Specifically we add a new field 'overwrite' which is the
total of all overwrite fields from the headers of all kernel ftrace pages we parsed
into this FtraceEventBundle. The value is zero if no overwriting occurred, a number
larger than zero if some overwriting occurred.

While we are here we also:
- Set cpu only once per ftrace_bundle.
- Remove cpu parameter from ParsePage.
- Add metadata out parameter to ParsePage for overwrite, inodes, pids of interest etc.

Bug: 72045210
Change-Id: I985ff880c88101317a2120b43d420fcd8272b113
7 files changed
tree: 842fc06ea802fd1bcbc9f023577e96a0ab522d83
  1. build_overrides/
  2. buildtools/
  3. debian/
  4. docs/
  5. gn/
  6. include/
  7. infra/
  8. protos/
  9. src/
  10. test/
  11. tools/
  12. .clang-format
  13. .gitignore
  14. .gn
  15. .travis.yml
  16. Android.bp
  17. Android.bp.extras
  18. BUILD.gn
  19. codereview.settings
  20. MODULE_LICENSE_APACHE2
  21. NOTICE
  22. OWNERS
  23. perfetto.rc
  24. PRESUBMIT.py
  25. README.chromium
  26. README.md
README.md

Perfetto - Performance instrumentation and logging for POSIX platforms

This project is meant to be built both as part of the Android tree and from a standalone checkout

For internal docs see this page

Supported platforms

Android is the platform targeted in the first milestones. Right now Linux desktop and OSX are maintained best-effort.

Contributing

This project uses Android AOSP Gerrit for code reviews and uses the Google C++ style. Currently targets -std=c++11.

You can use both git cl upload from Chromium depot tools or Android repo to upload patches.

git cl is quite convenient as it supports code auto-formatting via git cl format.

See https://source.android.com/source/contributing for more details about external contributions and CLA signing.

Build instructions

See docs/build_instructions.md

Running Perfetto

See docs/running_perfetto.md

Continuous integration

Continuous build and test coverage is available at perfetto-ci.appspot.com. Trybots: CLs uploaded to gerrit are automatically submitted to TravisCI within one minute and made available on the CI page above. The relevant code lives in the infra/ directory.

Run tests

On the host (Linux / OSX)

$ tools/ninja -C out/default (tracing_unittests | tracing_benchmarks)
$ out/default/tracing_unittests --gtest_help

On Android

Either connect a device in ADB mode or use the bundled emulator.

To start the emulator:
$ tools/run_android_emulator (arm | arm64) &

To run the tests (either on the emulator or physical device):
$ tools/run_android_test out/default tracing_unittests