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Issue 784361 link

Starred by 1 user
Status: Duplicate
Merged: issue 784206
Owner: ----
Closed: Nov 2017
Cc:
tdresser@google.com
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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3.8%-104.3% regression in loading.desktop at 515374:515544

Project Member Reported by tdres...@chromium.org, Nov 13 2017 
See the link to graphs below.
Project Member

Comment 1 by 42576172...@developer.gserviceaccount.com, Nov 13 2017 

All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=784361

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=dca7aa086cd50f99f0da2bcc6dba8b01a6c127a03d7d71477fd98b8de0875e7a


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

chromium-rel-mac11
chromium-rel-mac11-pro
chromium-rel-win10
chromium-rel-win7-dual
chromium-rel-win7-gpu-ati
chromium-rel-win7-gpu-intel
chromium-rel-win7-gpu-nvidia
chromium-rel-win7-x64-dual
chromium-rel-win8-dual
win-high-dpi
Project Member

Comment 4 by 42576172...@developer.gserviceaccount.com, Nov 13 2017 

📍 Couldn't reproduce a difference.
https://pinpoint-dot-chromeperf.appspot.com/job/12de6a31f80000
Project Member

Comment 8 by 42576172...@developer.gserviceaccount.com, Nov 13 2017

Mergedinto: 784206
Status: Duplicate (was: Untriaged)

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

Suspected Commit
  Author : Alexandr Ilin
  Commit : e378a8f40efd70f0f138f16eb4a14a290261da86
  Date   : Fri Nov 10 07:54:20 2017
  Subject: Enable SpeculativePreconnect Field Trial Testing

Bisect Details
  Configuration: win_perf_bisect
  Benchmark    : loading.desktop
  Metric       : timeToFirstMeaningfulPaint_avg/cold/AllRecipes
  Change       : 11.75% | 2027.875625 -> 2266.17533333

Revision             Result                  N
chromium@515492      2027.88 +- 359.857      8      good
chromium@515499      2021.14 +- 110.266      6      good
chromium@515501      1998.3 +- 239.241       6      good
chromium@515502      2379.36 +- 575.909      6      bad       <--
chromium@515505      2273.91 +- 238.538      9      bad
chromium@515518      2262.34 +- 139.495      9      bad
chromium@515544      2266.18 +- 188.844      9      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=AllRecipes loading.desktop

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8963035497121646544


For feedback, file a bug with component Speed>Bisection
Project Member

Comment 9 by 42576172...@developer.gserviceaccount.com, Nov 13 2017 


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

Suspected Commit
  Author : Alexandr Ilin
  Commit : e378a8f40efd70f0f138f16eb4a14a290261da86
  Date   : Fri Nov 10 07:54:20 2017
  Subject: Enable SpeculativePreconnect Field Trial Testing

Bisect Details
  Configuration: winx64intel_perf_bisect
  Benchmark    : loading.desktop
  Metric       : timeToFirstContentfulPaint_avg/cold/AllRecipes
  Change       : 21.43% | 1183.38933333 -> 1437.022

Revision             Result                  N
chromium@515490      1183.39 +- 244.13       6      good
chromium@515497      1153.69 +- 319.028      9      good
chromium@515501      1131.25 +- 66.5968      6      good
chromium@515502      1424.29 +- 194.07       6      bad       <--
chromium@515503      1429.37 +- 93.2678      6      bad
chromium@515504      1459.94 +- 136.322      6      bad
chromium@515517      1408.08 +- 76.0786      6      bad
chromium@515544      1437.02 +- 152.01       6      bad

To Run This Test
  src/tools/perf/run_benchmark -v --browser=release_x64 --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=AllRecipes loading.desktop

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8963027872859734352


For feedback, file a bug with component Speed>Bisection
Project Member

Comment 10 by 42576172...@developer.gserviceaccount.com, Nov 13 2017 


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

Suspected Commit
  Author : Alexandr Ilin
  Commit : e378a8f40efd70f0f138f16eb4a14a290261da86
  Date   : Fri Nov 10 07:54:20 2017
  Subject: Enable SpeculativePreconnect Field Trial Testing

Bisect Details
  Configuration: win_8_perf_bisect
  Benchmark    : loading.desktop
  Metric       : timeToFirstMeaningfulPaint_avg/warm/amazon.co.jp
  Change       : 36.86% | 85.2780000021 -> 116.712166662

Revision             Result                  N
chromium@515431      85.278 +- 2.36955       6      good
chromium@515478      88.7792 +- 18.0488      6      good
chromium@515501      89.9922 +- 14.8046      6      good
chromium@515502      125.646 +- 11.1284      6      bad       <--
chromium@515503      120.544 +- 51.818       9      bad
chromium@515505      119.71 +- 49.1703       9      bad
chromium@515508      114.29 +- 32.6475       9      bad
chromium@515513      123.719 +- 34.4072      6      bad
chromium@515524      116.712 +- 32.6186      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=amazon.co.jp loading.desktop

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8963026902078652560


For feedback, file a bug with component Speed>Bisection
Project Member

Comment 11 by 42576172...@developer.gserviceaccount.com, Nov 13 2017 


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

Suspected Commit
  Author : Alexandr Ilin
  Commit : e378a8f40efd70f0f138f16eb4a14a290261da86
  Date   : Fri Nov 10 07:54:20 2017
  Subject: Enable SpeculativePreconnect Field Trial Testing

Bisect Details
  Configuration: win_8_perf_bisect
  Benchmark    : loading.desktop
  Metric       : timeToFirstMeaningfulPaint_avg/cold/AllRecipes
  Change       : 11.27% | 2254.69057144 -> 2508.8654

Revision             Result                  N
chromium@515431      2254.69 +- 151.172      7      good
chromium@515478      2249.15 +- 125.737      8      good
chromium@515501      2264.12 +- 101.284      8      good
chromium@515502      2517.39 +- 101.49       5      bad       <--
chromium@515503      2596.49 +- 140.354      6      bad
chromium@515505      2539.25 +- 128.658      5      bad
chromium@515508      2481.05 +- 29.5216      5      bad
chromium@515513      2505.42 +- 84.173       5      bad
chromium@515524      2508.87 +- 32.4418      5      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=AllRecipes loading.desktop

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8963027135751345696


For feedback, file a bug with component Speed>Bisection
►

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