tp: add batch trace processor

This CL adds the batch trace processor: a tool which can run SQL queries
over >1 trace in parallel. The advantage it has over just running
trace processor using GNU parallel is two fold:
* You can issue multiple queries back to back without reparsing the trace
  which massively reduces iteration time
* There exist some basic commands (e.g. histogram, vhistogram, count)
  which aggregate the result of queries.

There is also a mode where you can just specify a query file which will
run across all traces and return the result as a CSV with an extra
column of the file path.

Change-Id: Idc417002e62ceefb8b44d120b3a0a2e837d78f49
3 files changed
tree: 855a5b7e409cd3b93e8e2e901e090c4490f8da1f
  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.