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Issue 779813 link

Starred by 1 user
Status: Duplicate
Merged: issue 778587
Owner: ----
Closed: Oct 2017
Cc:
█ briander...@chromium.org
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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1%-231.8% regression in smoothness.gpu_rasterization.top_25_smooth at 511313:511540

Project Member Reported by briander...@chromium.org, Oct 30 2017 
See the link to graphs below.
Project Member

Comment 1 by 42576172...@developer.gserviceaccount.com, Oct 30 2017 

All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=779813

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=a70be68d8fef1936222752e7f5ff06ca0be39d022b8edc6bef7beb7d5284ca11


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

android-nexus5
android-nexus5X
android-nexus6
android-one
android-webview-nexus5X
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, Oct 31 2017

Mergedinto: 778587
Status: Duplicate (was: Untriaged)

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

Suspected Commit
  Author : David Bokan
  Commit : dbab215523c8d77a7b54fcf3776357b079c36899
  Date   : Tue Oct 24 14:24:10 2017
  Subject: Fix telemetry gesture speeds

Bisect Details
  Configuration: android_nexus6_perf_bisect
  Benchmark    : smoothness.gpu_rasterization.top_25_smooth
  Metric       : input_event_latency_discrepancy/http___www.ebay.com
  Change       : 178.59% | 30.33625 -> 84.5150833333

Revision                                 Result                  N
chromium@511382                          30.3363 +- 36.9883      6      good
chromium@511396                          29.0149 +- 8.63578      6      good
chromium@511397                          27.9342 +- 6.16732      6      good
chromium@511397,catapult@f9691b256a      33.647 +- 42.8685       9      good
chromium@511397,catapult@dbab215523      75.0438 +- 53.0618      6      bad       <--
chromium@511397,catapult@2f4cf37a9f      84.2741 +- 21.691       6      bad
chromium@511398                          66.3342 +- 27.5719      6      bad
chromium@511400                          81.2614 +- 24.916       6      bad
chromium@511403                          83.1816 +- 26.963       6      bad
chromium@511410                          84.5151 +- 21.4672      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 --story-filter=http...www.ebay.com 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/8964269702397183840


For feedback, file a bug with component Speed>Bisection
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