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review.blissroms.org / platform_external_perfetto / 3be7b67e7d879b1abdf58ac64d3630a40383c85f
commit3be7b67e7d879b1abdf58ac64d3630a40383c85f[log] [tgz]
authorAnna Zappone <azappone@google.com>Fri Mar 23 17:26:10 2018 +0000
committerAnna Zappone <azappone@google.com>Fri Mar 23 17:26:10 2018 +0000
tree7e96f46eaacde1ab45ae9f40a87bfd41377c0250
parent1f9f74d4328a157f1617d4689b47790be413a527 [diff]
filesystem: Add LRU cache and full file scan for /data

OnInodes resolves all inodes. First looks in the static file map created once
in probes producer through CreateStaticDeviceToInodeMap.
Then searches in the LRU cache, currently sized 100.
Falls back on a full filesystem scan if there are still unresolved inodes.

Each inode is added to the InodeFileMap proto as resolved. If not resolved
even after the full file scan, just the inode number is added to the trace.
This ~shouldn't happen~ after a full scan.

Updated the LRU inode cache to take InodeMapValue for values.

Bug: 74584014
Change-Id: I20ecc75bb194909787ae42ccb49a26902d24cf52
9 files changed
tree: 7e96f46eaacde1ab45ae9f40a87bfd41377c0250
  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