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Issue 737376 link

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Issue metadata

Status: WontFix
Owner: ----
Closed: Aug 2017
Cc:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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31.5%-638.1% regression in blink_perf.layout at 481655:481803

Project Member Reported by sullivan@chromium.org, Jun 28 2017

Issue description

See the link to graphs below.
 
All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=737376

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgrq21gAgM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg7pHWpAkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgrujKvQoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgrvnrogkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgzruqywsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgrunttwkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgrvTctAoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgrsKXugoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgzuv27QgM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgrtnNqwoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgzt7M_QoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgzu2WtwoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgzrWG5gsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgrpmTpQoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgrtD1qAkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgzq_GowkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgzsSCgwoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgzq__pwoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgrrS3uAoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgroKRqQoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgrpnFuAoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgzu3CpgoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgrsbArwoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgrp7kvQkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgrp7XpgoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgzuTolAgM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgrtTbpgkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgjr--1goM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgzuCI6gkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgrpneqQoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgrvDBrgkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgroatpwkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgjsfVswgM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgzuuStAoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgzq-bugoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgroa7tgoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgzu3YuwoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgrp7DuwoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgrvCVvwoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgzuuEpQoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgjsfV0wsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgzpPW4goM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgzq-NqwoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgzqXY0QgM


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

chromium-rel-mac11-air
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, Jun 28 2017


=== BISECT JOB RESULTS ===
NO Perf regression found

Bisect Details
  Configuration: mac_air_perf_bisect
  Benchmark    : blink_perf.layout
  Metric       : character_fallback/character_fallback

Revision             Result                  N
chromium@481654      749.393 +- 139.753      21      good
chromium@481803      747.033 +- 147.791      21      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 blink_perf.layout

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8975581555872138320

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5281385285156864


| 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!
Project Member

Comment 5 by 42576172...@developer.gserviceaccount.com, Jun 28 2017


=== BISECT JOB RESULTS ===
NO Perf regression found

Bisect Details
  Configuration: mac_air_perf_bisect
  Benchmark    : blink_perf.layout
  Metric       : character_fallback/character_fallback

Revision             Result                  N
chromium@481654      750.411 +- 144.251      21      good
chromium@481803      756.609 +- 142.608      21      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 blink_perf.layout

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8975554668584380256

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5281385285156864


| 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!
Project Member

Comment 7 by 42576172...@developer.gserviceaccount.com, Jun 29 2017


=== BISECT JOB RESULTS ===
NO Perf regression found

Bisect Details
  Configuration: mac_pro_perf_bisect
  Benchmark    : blink_perf.layout
  Metric       : multicol_lots-of-text-balanced-orphans-widows/multicol_lots-of-text-balanced-orphans-widows

Revision             Result                  N
chromium@481654      173.834 +- 19.7337      21      good
chromium@481803      174.956 +- 3.58667      21      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 blink_perf.layout

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8975517150139420704

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=4590432689848320


| 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!
Project Member

Comment 9 by 42576172...@developer.gserviceaccount.com, Jun 29 2017


=== BISECT JOB RESULTS ===
NO Perf regression found

Bisect Details
  Configuration: mac_pro_perf_bisect
  Benchmark    : blink_perf.layout
  Metric       : multicol_lots-of-text-balanced-orphans-widows/multicol_lots-of-text-balanced-orphans-widows

Revision             Result                  N
chromium@481654      172.806 +- 28.3689      21      good
chromium@481803      174.723 +- 5.00907      21      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 blink_perf.layout

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8975494268558325952

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=4590432689848320


| 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!
Status: WontFix (was: Untriaged)
Bisect couldn't repro these, but they all recovered.

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