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gerrit-public.fairphone.software / platform / external / perfetto / 4d9665baaf17b8a716d90c499dc057e822a1a633
commit4d9665baaf17b8a716d90c499dc057e822a1a633[log] [tgz]
authorDaniele Di Proietto <ddiproietto@google.com>Wed Nov 24 18:25:46 2021 +0000
committerDaniele Di Proietto <ddiproietto@google.com>Thu Nov 25 11:31:17 2021 +0000
treef5f45a6afc5a03d98c26be94591b5777348bfad4
parentcfcbc644fead86924ae5d925ce61297e1ce0c7d5 [diff]
java_hprof: Regenerate the list of pids on continuous dump.

With this change, by default, the java heap profiler will rescan all the
processes every time when operating in continuous dump mode.

This is useful to collect data on processes that are not yet started
when tracing starts.

Tests:
* Regression: take a single java heap dump with a process name
  `./tools/java_heap_dump -n com.android.messaging`
* Regression: take a single java heap dump with a pid
  `./tools/java_heap_dump -p 3998`
* Regression: take a continuous java heap dump with an existing process
  name
  `./tools/java_heap_dump -n com.android.messaging -c 2000 --no-stop-when-done`
* Regression: take a continuous java heap dump with an existing pid
  `./tools/java_heap_dump -p 3998 -c 2000 --no-stop-when-done`
* New behavior: take a continuous java heap dump with the name of a
  process that gets started later.
  * `adb shell killall com.android.messaging`
  * `./tools/java_heap_dump -c com.android.messaging -c 2000 --no-stop-when-done`
  * Wait a bit
  * Start the messaging app

Bug: 200534390
Change-Id: I89bac451d6803b73009ad669bff31fbb487b9d58
6 files changed
tree: f5f45a6afc5a03d98c26be94591b5777348bfad4
  1. .github/
  2. bazel/
  3. build_overrides/
  4. buildtools/
  5. debian/
  6. docs/
  7. examples/
  8. gn/
  9. include/
  10. infra/
  11. protos/
  12. src/
  13. test/
  14. tools/
  15. ui/
  16. .clang-format
  17. .clang-tidy
  18. .gitattributes
  19. .gitignore
  20. .gn
  21. .style.yapf
  22. Android.bp
  23. Android.bp.extras
  24. BUILD
  25. BUILD.extras
  26. BUILD.gn
  27. CHANGELOG
  28. codereview.settings
  29. DIR_METADATA
  30. heapprofd.rc
  31. LICENSE
  32. meson.build
  33. METADATA
  34. MODULE_LICENSE_APACHE2
  35. OWNERS
  36. perfetto.rc
  37. PerfettoIntegrationTests.xml
  38. PRESUBMIT.py
  39. README.chromium
  40. README.md
  41. TEST_MAPPING
  42. traced_perf.rc
  43. 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.