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Issue metadata

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



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1099.7% regression in smoothness.gpu_rasterization.top_25_smooth at 523365:523402

Project Member Reported by kraynov@chromium.org, Dec 14 2017

Issue description

See the link to graphs below.
 
Project Member

Comment 1 by 42576172...@developer.gserviceaccount.com, Dec 14 2017

All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=794881

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=7149c2e68b1497df9d0a21118e52d553cdf4f7c951e11b32c0de3e0e82fc306e


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

android-nexus5
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, Dec 14 2017

Mergedinto: 794563
Status: Duplicate (was: Untriaged)

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

Suspected Commit
  Author : Yutaka Hirano
  Commit : 47b8f2451e900fe2c5fc4d94046925f40fea2fc7
  Date   : Tue Dec 12 10:52:56 2017
  Subject: Update RendererSideResourceScheduler testing config

Bisect Details
  Configuration: android_nexus5_perf_bisect
  Benchmark    : smoothness.gpu_rasterization.top_25_smooth
  Metric       : input_event_latency_discrepancy/Wordpress
  Change       : 939.94% | 330.761083333 -> 3439.72116667

Revision             Result                  N
chromium@523364      330.761 +- 100.602      6      good
chromium@523383      294.394 +- 109.477      6      good
chromium@523393      317.838 +- 87.9603      6      good
chromium@523395      316.987 +- 199.579      6      good
chromium@523396      3526.12 +- 1006.05      6      bad       <--
chromium@523398      3477.66 +- 1068.06      6      bad
chromium@523402      3439.72 +- 784.482      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=Wordpress 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/8960239479265544784


For feedback, file a bug with component Speed>Bisection

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