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Issue 776743 link

Starred by 1 user
Status: Duplicate
Merged: issue 774555
Owner: ----
Closed: Oct 2017
Cc:
█ pmeenan@chromium.org
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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5.7% regression in smoothness.simple_mobile_sites at 508375:508489

Project Member Reported by pmeenan@chromium.org, Oct 20 2017 
See the link to graphs below.
Project Member

Comment 1 by 42576172...@developer.gserviceaccount.com, Oct 20 2017 

All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=776743

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=8b845536b6c5294d4b84c3891c8b3f64da890c66908eb4f531d4840fa686d13f


Bot(s) for this bug's original alert(s):

android-nexus5
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, Oct 20 2017 


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

Bisect Details
  Configuration: android_nexus5_perf_bisect
  Benchmark    : smoothness.simple_mobile_sites
  Metric       : mean_input_event_latency/http___www.nyc.gov

Revision             Result                  N
chromium@508374      17.3169 +- 2.79176      21      good
chromium@508489      17.7013 +- 2.04064      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=http...www.nyc.gov smoothness.simple_mobile_sites

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8965206596009592080


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

Comment 6 by 42576172...@developer.gserviceaccount.com, Oct 24 2017

Mergedinto: 774555
Status: Duplicate (was: Untriaged)

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

Suspected Commit
  Author : sunxd
  Commit : 48493dc45de06867eec97e7944f56d511e3c4578
  Date   : Thu Oct 12 20:25:14 2017
  Subject: cc: make solid color picture layer tiling respect device scale factor

Bisect Details
  Configuration: android_nexus5_perf_bisect
  Benchmark    : smoothness.simple_mobile_sites
  Metric       : mean_input_event_latency/http___www.nyc.gov

Revision             Result                  N
chromium@508323      16.5522 +- 1.67586      6       good
chromium@508406      17.013 +- 1.81001       14      good
chromium@508425      16.9302 +- 2.56517      14      good
chromium@508439      16.997 +- 2.93796       21      good
chromium@508441      17.0801 +- 1.25359      9       good
chromium@508442      17.8894 +- 1.6353       9       bad       <--
chromium@508444      17.9675 +- 1.11103      6       bad
chromium@508448      17.7114 +- 2.33361      14      bad
chromium@508489      17.8839 +- 1.21544      9       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=http...www.nyc.gov smoothness.simple_mobile_sites

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8964931444453714192


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

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