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Issue 700909 link

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Issue metadata

Status: Duplicate
Merged: issue 700902
Owner: ----
Closed: Mar 2017
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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1% regression in smoothness.tough_webgl_cases at 455713:455796

Project Member Reported by hjd@chromium.org, Mar 13 2017

Issue description

See the link to graphs below.
 

Comment 1 by hjd@chromium.org, Mar 13 2017

All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=700909

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg1JTy9AgM


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

chromium-rel-mac11-air
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, Mar 13 2017

Mergedinto: 700364
Status: Duplicate (was: Untriaged)

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

Suspected Commit
  Author : Michael Hablich
  Commit : 7c3936c67a6361371d9a00d83e2c03ecc603ce76
  Date   : Thu Mar 09 08:05:42 2017
  Subject: Version 5.9.34.1 (Turn on I+TF)

Bisect Details
  Configuration: mac_air_perf_bisect
  Benchmark    : smoothness.tough_webgl_cases
  Metric       : mean_frame_time/http___www.khronos.org_registry_webgl_sdk_demos_google_nvidia-vertex-buffer-object_index.html
  Change       : 0.56% | 16.6695 -> 16.7625

Revision                           Result                     N
chromium@455712                    16.6695 +- 0.00758288      6      good
chromium@455718                    16.6683 +- 0.00867948      6      good
chromium@455719                    16.6707 +- 0.00820569      6      good
chromium@455719,v8@7c3936c67a      16.7715 +- 0.050946        6      bad       <--
chromium@455719,v8@fbffc377e3      16.7717 +- 0.0579425       6      bad
chromium@455720                    16.7697 +- 0.0504513       6      bad
chromium@455721                    16.7742 +- 0.0548164       6      bad
chromium@455723                    16.7755 +- 0.0563871       6      bad
chromium@455733                    16.7812 +- 0.00168325      6      bad
chromium@455754                    16.7727 +- 0.0534914       6      bad
chromium@455796                    16.7625 +- 0.0678491       6      bad

To Run This Test
  src/tools/perf/run_benchmark -v --browser=release --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=http...www.khronos.org.registry.webgl.sdk.demos.google.nvidia.vertex.buffer.object.index.html smoothness.tough_webgl_cases

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8985229417718068672

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=6142670390427648


| O O | Visit http://www.chromium.org/developers/speed-infra/perf-bug-faq
|  X  | for more information addressing perf regression bugs. For feedback,
| / \ | file a bug with component Speed>Bisection.  Thank you!

Comment 4 by hjd@chromium.org, Mar 13 2017

Components: Blink>JavaScript
Mergedinto: -700364 700902
Seems similar enough to https://bugs.chromium.org/p/chromium/issues/detail?id=700902 to dupe.

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