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Issue 773715 link

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Issue metadata

Status: WontFix
Owner: ----
Closed: Dec 2017
Cc:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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128.4% regression in smoothness.gpu_rasterization.top_25_smooth at 506855:506925

Project Member Reported by nzolghadr@chromium.org, Oct 11 2017

Issue description

See the link to graphs below.
 
Project Member

Comment 1 by 42576172...@developer.gserviceaccount.com, Oct 11 2017

All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=773715

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=068cbc02f5a24cbab8d019c4e25bfda70fa62b7384947ae9df42485195d5d40b


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

android-webview-nexus6
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, Oct 12 2017


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

Bisect Details
  Configuration: android_webview_nexus6_aosp_perf_bisect
  Benchmark    : smoothness.gpu_rasterization.top_25_smooth
  Metric       : frame_times/https___mail.google.com_mail_

Revision             Result                  N
chromium@506854      28.9188 +- 54.8878      21      good
chromium@506925      27.3779 +- 52.9263      21      bad

To Run This Test
  src/tools/perf/run_benchmark -v --browser=android-webview --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=https...mail.google.com.mail. 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/8966017010466250000


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

Comment 5 by 42576172...@developer.gserviceaccount.com, Oct 12 2017


=== BISECT JOB RESULTS ===
Perf regression found but unable to narrow commit range

Build failures prevented the bisect from narrowing the range further.


Bisect Details
  Configuration: android_webview_nexus6_aosp_perf_bisect
  Benchmark    : smoothness.gpu_rasterization.top_25_smooth
  Metric       : frame_times/https___mail.google.com_mail_
  Change       : 86.91% | 17.6089001623 -> 32.9123842078

Suspected Commit Range
  2 commits in range
  https://chromium.googlesource.com/chromium/src/+log/e9134b5e4678b11c4fc171e02c7cc214fa8016ef..771bc4ee1d609083dd81daa0ee78229b49dfa270


Revision             Result                   N
chromium@506698      17.6089 +- 1.47793       14       good
chromium@506773      17.41 +- 1.23381         9        good
chromium@506792      17.4106 +- 0.951974      9        good
chromium@506802      17.4424 +- 1.32375       14       good
chromium@506803      ---                      ---      build failure
chromium@506804      29.0958 +- 44.6901       14       bad
chromium@506806      31.0994 +- 53.485        21       bad
chromium@506811      31.5238 +- 45.6606       14       bad
chromium@506849      33.3189 +- 32.7858       9        bad
chromium@506998      32.9124 +- 43.532        14       bad

To Run This Test
  src/tools/perf/run_benchmark -v --browser=android-webview --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=https...mail.google.com.mail. 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/8965933502399962368


For feedback, file a bug with component Speed>Bisection
Status: WontFix (was: Untriaged)
Bisect unable to find culprit, this regression exists in stable. Ignoring.

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