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Issue 718914 link

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Issue metadata

Status: Duplicate
Merged: issue 718757
Owner: ----
Closed: May 2017
Cc:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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7.8% regression in page_cycler_v2.intl_ko_th_vi at 468616:468733

Project Member Reported by kraynov@chromium.org, May 5 2017

Issue description

See the link to graphs below.
 
All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=718914

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg8rGErAkM


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

chromium-rel-mac11
Mergedinto: 718757
Status: Duplicate (was: Untriaged)

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

Suspected Commit
  Author : scottmg
  Commit : 6b0131a01da5149cd7acb81973f881a0d85fbe59
  Date   : Tue May 02 16:34:31 2017
  Subject: network service: Plumbing to get URLLoaderFactory to renderer on nav commit

Bisect Details
  Configuration: mac_10_11_perf_bisect
  Benchmark    : page_cycler_v2.intl_ko_th_vi
  Metric       : timeToFirstContentfulPaint_avg/pcv1-warm/http___www.donga.com_
  Change       : 8.04% | 76.6808333298 -> 82.8433333387

Revision             Result                  N
chromium@468615      76.6808 +- 1.69432      6      good
chromium@468674      77.7395 +- 1.47539      6      good
chromium@468675      81.9058 +- 2.30294      6      bad       <--
chromium@468676      83.381 +- 5.5773        6      bad
chromium@468678      82.707 +- 3.09142       6      bad
chromium@468682      82.6345 +- 2.26015      6      bad
chromium@468689      82.7368 +- 2.38971      6      bad
chromium@468704      82.5815 +- 1.30156      6      bad
chromium@468733      82.8433 +- 1.73467      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.donga.com. page_cycler_v2.intl_ko_th_vi

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8980421237770977456

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=4982295179558912


| 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!

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

Suspected Commit
  Author : scottmg
  Commit : 6b0131a01da5149cd7acb81973f881a0d85fbe59
  Date   : Tue May 02 16:34:31 2017
  Subject: network service: Plumbing to get URLLoaderFactory to renderer on nav commit

Bisect Details
  Configuration: mac_10_11_perf_bisect
  Benchmark    : page_cycler_v2.intl_ko_th_vi
  Metric       : timeToFirstContentfulPaint_avg/pcv1-warm/http___www.donga.com_
  Change       : 8.99% | 77.0383333337 -> 83.9625000004

Revision             Result                  N
chromium@468615      77.0383 +- 4.73014      6      good
chromium@468674      77.6108 +- 3.46294      6      good
chromium@468675      82.8823 +- 3.31204      6      bad       <--
chromium@468676      81.9675 +- 2.96525      6      bad
chromium@468678      81.7503 +- 2.52177      6      bad
chromium@468682      82.8423 +- 2.81752      6      bad
chromium@468689      82.299 +- 2.79387       6      bad
chromium@468704      83.4112 +- 7.1378       6      bad
chromium@468733      83.9625 +- 7.69006      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.donga.com. page_cycler_v2.intl_ko_th_vi

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8980421245784811168

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5225493407727616


| 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!

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