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Issue 737979 link

Starred by 1 user
Status: Duplicate
Merged: issue 737981
Owner: ----
Closed: Jun 2017
Cc:
tdres...@chromium.org
Components:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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6.7%-106.8% regression in smoothness.tough_canvas_cases at 482740:482914

Project Member Reported by tdres...@chromium.org, Jun 29 2017 
See the link to graphs below.
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, Jun 29 2017 


=== BISECT JOB RESULTS ===
Bisect failed for unknown reasons

Please contact the team (see below) and report the error.


Bisect Details
  Configuration: android_nexus5_perf_bisect
  Benchmark    : smoothness.pathological_mobile_sites
  Metric       : mean_input_event_latency/mean_input_event_latency


To Run This Test
  src/tools/perf/run_benchmark -v --browser=android-chromium --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests smoothness.pathological_mobile_sites

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8975446659411222128

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=6351397332713472


| O O | Visit http://www.chromium.org/developers/speed-infra/perf-bug-faq
|  X  | for more information addressing perf regression bugs. For feedback,
| / \ | file a bug with component Speed>Bisection.  Thank you!
Project Member

Comment 6 by 42576172...@developer.gserviceaccount.com, Jun 29 2017 


=== BISECT JOB RESULTS ===
Bisect failed for unknown reasons

Please contact the team (see below) and report the error.


Bisect Details
  Configuration: android_nexus5_perf_bisect
  Benchmark    : smoothness.pathological_mobile_sites
  Metric       : mean_input_event_latency/mean_input_event_latency


To Run This Test
  src/tools/perf/run_benchmark -v --browser=android-chromium --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests smoothness.pathological_mobile_sites

More information on addressing performance regressions:
  http://g.co/ChromePerformanceRegressions

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8975441357073603984


For feedback, file a bug with component Speed>Bisection
Project Member

Comment 8 by 42576172...@developer.gserviceaccount.com, Jun 29 2017 


=== BISECT JOB RESULTS ===
Bisect failed for unknown reasons

Please contact the team (see below) and report the error.


Bisect Details
  Configuration: android_nexus5_perf_bisect
  Benchmark    : smoothness.gpu_rasterization.top_25_smooth
  Metric       : mean_input_event_latency/mean_input_event_latency


To Run This Test
  src/tools/perf/run_benchmark -v --browser=android-chromium --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests smoothness.gpu_rasterization.top_25_smooth

More information on addressing performance regressions:
  http://g.co/ChromePerformanceRegressions

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8975439939616476928


For feedback, file a bug with component Speed>Bisection
Project Member

Comment 10 by 42576172...@developer.gserviceaccount.com, Jun 30 2017

Mergedinto: 737704
Status: Duplicate (was: Untriaged)

=== BISECT JOB RESULTS ===
Perf regression found with culprit

Suspected Commit
  Author : Philip Rogers
  Commit : 3b13fbc2c29ed02b1dc07cca7975788a4e70a305
  Date   : Tue Jun 27 23:08:51 2017
  Subject: Remove max scroll offset rounding

Bisect Details
  Configuration: android_nexus5_perf_bisect
  Benchmark    : smoothness.gpu_rasterization.top_25_smooth
  Metric       : mean_input_event_latency/mean_input_event_latency
  Change       : 31.09% | 18.7109275362 -> 24.5287466667

Revision             Result                   N
chromium@482739      18.7109 +- 1.20165       6      good
chromium@482770      18.9775 +- 1.52277       6      good
chromium@482778      18.6957 +- 2.00916       6      good
chromium@482780      19.0768 +- 0.609008      6      good
chromium@482781      18.6887 +- 1.09837       6      good
chromium@482782      24.7017 +- 1.25845       6      bad       <--
chromium@482785      24.4499 +- 1.45994       6      bad
chromium@482800      23.8938 +- 1.58782       6      bad
chromium@482861      24.5287 +- 1.65255       6      bad

To Run This Test
  src/tools/perf/run_benchmark -v --browser=android-chromium --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests smoothness.gpu_rasterization.top_25_smooth

More information on addressing performance regressions:
  http://g.co/ChromePerformanceRegressions

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8975437579418056064


For feedback, file a bug with component Speed>Bisection
Project Member

Comment 11 by 42576172...@developer.gserviceaccount.com, Jun 30 2017

Mergedinto: -737704 737981

=== BISECT JOB RESULTS ===
Perf regression found with culprit

Suspected Commit
  Author : Christopher Cameron
  Commit : 1894d423068be735560e0171922c833c4091b5d1
  Date   : Wed Jun 28 06:31:03 2017
  Subject: color: Enable color correct rendering by default

Bisect Details
  Configuration: winx64_10_perf_bisect
  Benchmark    : smoothness.tough_canvas_cases
  Metric       : frame_times/frame_times
  Change       : 4.44% | 21.8995442313 -> 22.8726612211

Revision             Result                   N
chromium@482837      21.8995 +- 0.283534      6      good
chromium@482876      21.9682 +- 0.358843      6      good
chromium@482895      21.9264 +- 0.229467      6      good
chromium@482900      21.9463 +- 0.221003      6      good
chromium@482903      21.95 +- 0.255756        6      good
chromium@482904      22.8685 +- 0.207577      6      bad       <--
chromium@482905      22.8558 +- 0.199891      6      bad
chromium@482914      22.8727 +- 0.26839       6      bad

To Run This Test
  src/tools/perf/run_benchmark -v --browser=release_x64 --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests smoothness.tough_canvas_cases

More information on addressing performance regressions:
  http://g.co/ChromePerformanceRegressions

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8975444167374342160


For feedback, file a bug with component Speed>Bisection
►

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