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Issue 758997 link

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Issue metadata

Status: Duplicate
Merged: issue 758277
Owner: ----
Closed: Aug 2017
Cc:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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375.4% regression in smoothness.sync_scroll.key_mobile_sites_smooth at 495213:495389

Project Member Reported by kraynov@chromium.org, Aug 25 2017

Issue description

See the link to graphs below.
 
Project Member

Comment 1 by 42576172...@developer.gserviceaccount.com, Aug 25 2017

All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=758997

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=35363b171f5e5ee7667c0bf925677bbabcd8443bc3be9ab75c3fbd3960c2f311


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

android-one
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, Aug 25 2017

Mergedinto: 758277
Status: Duplicate (was: Untriaged)

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

Suspected Commit
  Author : Charles Harrison
  Commit : 007abddf6ad7f7d3f1491217119e3e7166faaace
  Date   : Thu Aug 17 21:39:49 2017
  Subject: Testing config: doc.write blocking change on slow connections only

Bisect Details
  Configuration: android_one_perf_bisect
  Benchmark    : smoothness.sync_scroll.key_mobile_sites_smooth
  Metric       : mean_input_event_latency/http___worldjournal.com_
  Change       : 237.34% | 133.395777778 -> 450.001833333

Revision             Result                  N
chromium@495212      133.396 +- 366.127      9      good
chromium@495301      88.359 +- 41.0678       6      good
chromium@495323      84.4758 +- 24.6623      6      good
chromium@495326      89.8077 +- 36.0237      6      good
chromium@495327      467.704 +- 118.117      6      bad       <--
chromium@495328      447.511 +- 181.011      6      bad
chromium@495329      461.209 +- 90.7652      6      bad
chromium@495334      411.896 +- 120.991      6      bad
chromium@495345      430.925 +- 124.517      6      bad
chromium@495389      450.002 +- 122.916      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...worldjournal.com. smoothness.sync_scroll.key_mobile_sites_smooth

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8970282318546499696


For feedback, file a bug with component Speed>Bisection

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