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chromium / chromium / src / 75956373bf791e02dc4a10c46eff1cae32b835db
commit75956373bf791e02dc4a10c46eff1cae32b835db[log] [tgz]
authorAlexei Svitkine <asvitkine@chromium.org>Tue Jan 28 23:13:28 2025
committerChromium LUCI CQ <chromium-scoped@luci-project-accounts.iam.gserviceaccount.com>Tue Jan 28 23:13:28 2025
treeb6974b8e1a1e740758b230da4145680330c93c0f
parentf452123c21548e2a942fb79f47fbddb6bd8b5df7 [diff]
Return early in PrepareSamples() when a histogram has no samples.

This has no real behavior change, as a delta of an empty histogram is equivalent to an empty histogram. However, it allows skipping corruption checks in the case when there are no samples, which can be expensive due to the crc32 over the bucket ranges.

Bug: 360262188
Change-Id: Idf3faefe19a749636f3f7ab4b36aa811022b5b7c
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6209648
Commit-Queue: Luc Nguyen <lucnguyen@google.com>
Auto-Submit: Alexei Svitkine <asvitkine@chromium.org>
Reviewed-by: Luc Nguyen <lucnguyen@google.com>
Cr-Commit-Position: refs/heads/main@{#1412591}
1 file changed
tree: b6974b8e1a1e740758b230da4145680330c93c0f
  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. crypto/
  16. dbus/
  17. device/
  18. docs/
  19. extensions/
  20. fuchsia_web/
  21. gin/
  22. google_apis/
  23. gpu/
  24. headless/
  25. infra/
  26. ios/
  27. ipc/
  28. media/
  29. mojo/
  30. native_client_sdk/
  31. net/
  32. pdf/
  33. ppapi/
  34. printing/
  35. remoting/
  36. rlz/
  37. sandbox/
  38. services/
  39. skia/
  40. sql/
  41. storage/
  42. styleguide/
  43. testing/
  44. third_party/
  45. tools/
  46. ui/
  47. url/
  48. webkit/
  49. clank
  50. internal
  51. ios_internal
  52. native_client
  53. signing_keys
  54. v8
  55. .clang-format
  56. .clang-tidy
  57. .clangd
  58. .git-blame-ignore-revs
  59. .gitallowed
  60. .gitattributes
  61. .gitignore
  62. .gitmodules
  63. .gn
  64. .mailmap
  65. .rustfmt.toml
  66. .vpython3
  67. .yapfignore
  68. ATL_OWNERS
  69. AUTHORS
  70. BUILD.gn
  71. CODE_OF_CONDUCT.md
  72. codereview.settings
  73. CPPLINT.cfg
  74. CRYPTO_OWNERS
  75. DEPS
  76. description
  77. DIR_METADATA
  78. LICENSE
  79. LICENSE.chromium_os
  80. OWNERS
  81. PRESUBMIT.py
  82. PRESUBMIT_test.py
  83. PRESUBMIT_test_mocks.py
  84. README.md
  85. WATCHLISTS
README.md

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