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chromium / chromium / src / 94d82d97dfe0d95362d22e6c727cadb8e8e8c75a
commit94d82d97dfe0d95362d22e6c727cadb8e8e8c75a[log] [tgz]
authorRobert Flack <flackr@chromium.org>Wed Jan 20 18:05:20 2021
committerChromium LUCI CQ <chromium-scoped@luci-project-accounts.iam.gserviceaccount.com>Wed Jan 20 18:05:20 2021
tree93e029fa9db919452b9fde0b8f2bccd88cd8045f
parent63e9f1d119a0387e5381a121ce3150cf0967c26b [diff]
Extend wheel scroll update latency histograms.

Specifically, this extends the following histograms:
- Event.Latency.ScrollUpdate.Wheel.HandledToRendererSwap2_Impl
- Event.Latency.ScrollUpdate.Wheel.HandledToRendererSwap2_Main
- Event.Latency.ScrollUpdate.Wheel.HandledToRendererSwap2

These are used to narrow down which part of scroll event dispatch was
slow when Event.Latency.ScrollUpdate.Wheel.TimeToScrollUpdateSwapBegin4
has a regression during input metrics triage. When we resolve the
discrepencies between these metrics and EventLatency metrics
(https://crbug.com/1079116) these can be replaced but these also serve
as a valuable comparison to find where the discrepencies are coming
from.

Bug: 1149530
Change-Id: I4826b65ab0363e5cd3ea1691580d091ebb0ea911
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2626417
Commit-Queue: Robert Flack <flackr@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Mark Pearson <mpearson@chromium.org>
Cr-Commit-Position: refs/heads/master@{#845218}
1 file changed
tree: 93e029fa9db919452b9fde0b8f2bccd88cd8045f
  1. android_webview/
  2. apps/
  3. ash/
  4. base/
  5. build/
  6. build_overrides/
  7. buildtools/
  8. cc/
  9. chrome/
  10. chromecast/
  11. chromeos/
  12. cloud_print/
  13. codelabs/
  14. components/
  15. content/
  16. courgette/
  17. crypto/
  18. dbus/
  19. device/
  20. docs/
  21. extensions/
  22. fuchsia/
  23. gin/
  24. google_apis/
  25. google_update/
  26. gpu/
  27. headless/
  28. infra/
  29. ios/
  30. ipc/
  31. jingle/
  32. media/
  33. mojo/
  34. native_client_sdk/
  35. net/
  36. pdf/
  37. ppapi/
  38. printing/
  39. remoting/
  40. rlz/
  41. sandbox/
  42. services/
  43. skia/
  44. sql/
  45. storage/
  46. styleguide/
  47. testing/
  48. third_party/
  49. tools/
  50. ui/
  51. url/
  52. weblayer/
  53. .clang-format
  54. .clang-tidy
  55. .eslintrc.js
  56. .git-blame-ignore-revs
  57. .gitattributes
  58. .gitignore
  59. .gn
  60. .vpython
  61. .vpython3
  62. .yapfignore
  63. AUTHORS
  64. BUILD.gn
  65. CODE_OF_CONDUCT.md
  66. codereview.settings
  67. DEPS
  68. DIR_METADATA
  69. ENG_REVIEW_OWNERS
  70. LICENSE
  71. LICENSE.chromium_os
  72. OWNERS
  73. PRESUBMIT.py
  74. PRESUBMIT_test.py
  75. PRESUBMIT_test_mocks.py
  76. README.md
  77. WATCHLISTS
README.md

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Documentation in the source is rooted in docs/README.md.

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For historical reasons, there are some small top level directories. Now the guidance is that new top level directories are for product (e.g. Chrome, Android WebView, Ash). Even if these products have multiple executables, the code should be in subdirectories of the product.