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Issue 762218 link

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Issue metadata

Status: Duplicate
Merged: issue 760682
Owner: ----
Closed: Sep 2017
Cc:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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42%-133.6% regression in smoothness.key_mobile_sites_smooth at 497705:498017

Project Member Reported by briander...@chromium.org, Sep 5 2017

Issue description

See the link to graphs below.
 
All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=762218

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=e857eb467f4abeadc6232b79b3a4c245ff209a20deb1f8bd494fb809c565914c


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

android-nexus5
android-nexus6

=== 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_nexus6_perf_bisect
  Benchmark    : smoothness.key_mobile_sites_smooth
  Metric       : input_event_latency_discrepancy/https___www.google.co.uk_search?hl_en_q_barack+obama_cad_h
  Change       : 82.10% | 162.119557143 -> 295.223338462

Suspected Commit Range
  2 commits in range
  https://chromium.googlesource.com/chromium/src/+log/3dd1530cd0d464811f00a995e98487b8008cecc2..2db3fa641f2b6a05ee894f158a93a419caf3e896


Revision             Result                  N
chromium@497704      162.12 +- 115.402       14       good
chromium@497861      148.479 +- 103.248      14       good
chromium@497939      169.287 +- 161.084      14       good
chromium@497978      163.368 +- 190.913      21       good
chromium@497998      157.76 +- 131.348       21       good
chromium@498001      151.454 +- 108.039      14       good
chromium@498002      158.897 +- 162.629      14       good
chromium@498003      ---                     ---      build failure
chromium@498004      319.635 +- 501.958      17       bad
chromium@498008      304.875 +- 528.831      18       bad
chromium@498017      295.223 +- 390.959      13       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=https...www.google.co.uk.search.hl.en.q.barack.obama.cad.h smoothness.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/8969256135606193488


For feedback, file a bug with component Speed>Bisection
Mergedinto: 760682
Status: Duplicate (was: Untriaged)
Only CL in the range that changes the chrome binary is r498004. Duping this with the other regressions caused by that CL into  bug 760682 .

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