Improve performance of /proc/pid/status poller

Improves the performace of the ps poller by skipping
pids that failed in the past. This happens most of the
times with kernel threads which have a valid /proc/pid/status
file but which doesn't contain Rss sections.
Also fix some minor bugs on metatrace and make the tmux "sed"
command work on mac.

Bug: 117644900
Change-Id: I742ae373fc10bf25abc2e38e383f774b5d6cccf7
4 files changed
tree: a524e35b157218fa79c51ea17700a84493359490
  1. build_overrides/
  2. buildtools/
  3. debian/
  4. docs/
  5. gn/
  6. include/
  7. infra/
  8. protos/
  9. src/
  10. test/
  11. tools/
  12. ui/
  13. .clang-format
  14. .gitignore
  15. .gn
  16. .travis.yml
  17. Android.bp
  18. Android.bp.extras
  19. BUILD.gn
  20. codereview.settings
  21. heapprofd.rc
  22. MODULE_LICENSE_APACHE2
  23. NOTICE
  24. OWNERS
  25. perfetto.rc
  26. PRESUBMIT.py
  27. README.chromium
  28. README.md
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.