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Issue 737977 link

Starred by 1 user
Status: Duplicate
Merged: issue 737379
Owner:
█ chongz@chromium.org
Last visit > 30 days ago
Closed: Aug 2017
Cc:
█ chongz@chromium.org
tdres...@chromium.org
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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4.1%-1041.5% regression in smoothness.top_25_smooth at 464710:482861

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

Comment 4 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.top_25_smooth
  Metric       : first_gesture_scroll_update_latency/Pinterest


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 --story-filter=Pinterest smoothness.top_25_smooth

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8975446713612339664

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=6175537749295104


| 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.top_25_smooth
  Metric       : first_gesture_scroll_update_latency/Pinterest


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 --story-filter=Pinterest smoothness.top_25_smooth

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8975445126863042432

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=6175537749295104


| 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 7 by 42576172...@developer.gserviceaccount.com, Jun 29 2017 


=== BISECT JOB RESULTS ===
NO Perf regression found

Bisect Details
  Configuration: winx64intel_perf_bisect
  Benchmark    : smoothness.top_25_smooth
  Metric       : first_gesture_scroll_update_latency/http___games.yahoo.com

Revision             Result                  N
chromium@482600      5.54648 +- 22.4411      21      good
chromium@482669      8.38752 +- 25.4596      21      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 --story-filter=http...games.yahoo.com smoothness.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/8975446735941382384


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

Comment 10 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.top_25_smooth
  Metric       : first_gesture_scroll_update_latency/Pinterest


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 --story-filter=Pinterest smoothness.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/8975439977803147712


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

Comment 12 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.top_25_smooth
  Metric       : first_gesture_scroll_update_latency/Pinterest


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 --story-filter=Pinterest smoothness.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/8975437580899194528


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

Comment 13 by 42576172...@developer.gserviceaccount.com, Jun 29 2017 


=== BISECT JOB RESULTS ===
NO Perf regression found

Bisect Details
  Configuration: winx64intel_perf_bisect
  Benchmark    : smoothness.top_25_smooth
  Metric       : first_gesture_scroll_update_latency/http___games.yahoo.com

Revision             Result                  N
chromium@482600      6.94333 +- 21.8485      21      good
chromium@482669      8.8949 +- 23.8314       21      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 --story-filter=http...games.yahoo.com smoothness.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/8975441355541517024


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

Comment 15 by 42576172...@developer.gserviceaccount.com, Aug 21 2017

Cc: chongz@chromium.org
Owner: chongz@chromium.org
Status: Assigned (was: Untriaged)

=== Auto-CCing suspected CL author chongz@chromium.org ===

Hi chongz@chromium.org, the bisect results pointed to your CL, please take a look at the
results.


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

Suspected Commit
  Author : Chong Zhang
  Commit : 379f637084f5ccfe96bba687afaad8a75f53c3d5
  Date   : Mon Jun 26 21:23:59 2017
  Subject: Re-enable VsyncAlignedInput to Field Trial

Bisect Details
  Configuration: android_nexus5X_perf_bisect
  Benchmark    : smoothness.top_25_smooth
  Metric       : frame_times/https___www.google.com__hl_en_q_barack+obama
  Change       : 4.99% | 16.6456943408 -> 17.4765294137

Revision             Result                    N
chromium@482301      16.6457 +- 0.0406428      21      good
chromium@482390      16.6027 +- 0.323621       14      good
chromium@482401      16.6475 +- 0.0872039      21      good
chromium@482404      16.6353 +- 0.0136365      6       good
chromium@482405      17.957 +- 1.17888         6       bad       <--
chromium@482406      17.4795 +- 1.37701        9       bad
chromium@482412      17.4613 +- 2.56375        14      bad
chromium@482434      17.4492 +- 1.35697        6       bad
chromium@482478      17.7721 +- 0.0655037      6       bad
chromium@482655      17.4765 +- 3.48644        21      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 --story-filter=https...www.google.com..hl.en.q.barack.obama smoothness.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/8970645104892565552


For feedback, file a bug with component Speed>Bisection

Comment 16 by chongz@chromium.org, Aug 21 2017

Mergedinto: 737379
Status: Duplicate (was: Assigned)
►

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