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chromium / chromium / src / 053d27ba3e2f3545b36930f84a210ae28d577708
commit053d27ba3e2f3545b36930f84a210ae28d577708[log] [tgz]
authorConnor Clark <cjamcl@chromium.org>Tue May 23 21:07:23 2023
committerChromium LUCI CQ <chromium-scoped@luci-project-accounts.iam.gserviceaccount.com>Tue May 23 21:07:23 2023
tree20a56c06f0b38b411394773d9aa587ff179f60e4
parente0872980e0e6c4447996f5b74c4068917fd03922 [diff]
Add receiveHeadersStart to network request timing.

Estimating TTFB can be done by subtracting sendEnd from receiveHeadersStart, however we were only exposing receiveHeadersEnd. Just using receiveHeadersEnd is close enough (this is what we do in Lighthouse) - that introduces <1ms error in the common case, but there are extreme cases where they can differ significantly (if the server streams out a first header quickly, but takes time to send all of them).

Change-Id: I6882ff62e7434a1136cbf831edc044a6816e1493
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4556570
Reviewed-by: Andrey Kosyakov <caseq@chromium.org>
Commit-Queue: Connor Clark <cjamcl@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1148164}
8 files changed
tree: 20a56c06f0b38b411394773d9aa587ff179f60e4
  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. codelabs/
  13. components/
  14. content/
  15. courgette/
  16. crypto/
  17. dbus/
  18. device/
  19. docs/
  20. extensions/
  21. fuchsia_web/
  22. gin/
  23. google_apis/
  24. google_update/
  25. gpu/
  26. headless/
  27. infra/
  28. ios/
  29. ipc/
  30. media/
  31. mojo/
  32. native_client_sdk/
  33. net/
  34. pdf/
  35. ppapi/
  36. printing/
  37. remoting/
  38. rlz/
  39. sandbox/
  40. services/
  41. skia/
  42. sql/
  43. storage/
  44. styleguide/
  45. testing/
  46. third_party/
  47. tools/
  48. ui/
  49. url/
  50. weblayer/
  51. .clang-format
  52. .clang-tidy
  53. .eslintrc.js
  54. .git-blame-ignore-revs
  55. .gitattributes
  56. .gitignore
  57. .gn
  58. .mailmap
  59. .rustfmt.toml
  60. .vpython3
  61. .yapfignore
  62. ATL_OWNERS
  63. AUTHORS
  64. BUILD.gn
  65. CODE_OF_CONDUCT.md
  66. codereview.settings
  67. DEPS
  68. DIR_METADATA
  69. LICENSE
  70. LICENSE.chromium_os
  71. OWNERS
  72. PRESUBMIT.py
  73. PRESUBMIT_test.py
  74. PRESUBMIT_test_mocks.py
  75. README.md
  76. WATCHLISTS
README.md

Logo Chromium

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The project's web site is https://www.chromium.org.

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

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