Define GPU metrics

This change adds the GPU metrics. Specifically, this change adds the GPU
memory metrics while providing a extensible GPU metric base.

Bug: 167416193
Test: tools/diff_test_trace_processor.py <trace_processor_shell> \
      --trace-filter='gpu_metric*'
Test: <trace_processor_shell> --run-metrics android_gpu \
      --metrics-output=json <perfetto trace>
Change-Id: I96f324d5b72f7134733ba6b5cfb8e2968c53e634
15 files changed
tree: 813fac35f457b24e9cf6de38e6756abb1b18b10f
  1. bazel/
  2. build_overrides/
  3. buildtools/
  4. debian/
  5. docs/
  6. examples/
  7. gn/
  8. include/
  9. infra/
  10. protos/
  11. src/
  12. test/
  13. tools/
  14. ui/
  15. .clang-format
  16. .clang-tidy
  17. .gitignore
  18. .gn
  19. .style.yapf
  20. Android.bp
  21. Android.bp.extras
  22. BUILD
  23. BUILD.extras
  24. BUILD.gn
  25. CHANGELOG
  26. codereview.settings
  27. heapprofd.rc
  28. LICENSE
  29. METADATA
  30. MODULE_LICENSE_APACHE2
  31. OWNERS
  32. perfetto.rc
  33. PRESUBMIT.py
  34. README.chromium
  35. README.md
  36. TEST_MAPPING
  37. traced_perf.rc
  38. 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.