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Issue 736366 link

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Issue metadata

Status: Duplicate
Merged: issue 732704
Owner: ----
Closed: Jun 2017
Cc:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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10% regression in blink_perf.bindings at 478554:478629

Project Member Reported by kraynov@chromium.org, Jun 23 2017

Issue description

See the link to graphs below.
 
All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=736366

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgjrXviwsM


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

android-nexus5X
Project Member

Comment 4 by 42576172...@developer.gserviceaccount.com, Jun 23 2017


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

Bisect Details
  Configuration: android_nexus5X_perf_bisect
  Benchmark    : blink_perf.bindings
  Metric       : typed-array-construct-from-same-type/typed-array-construct-from-same-type

Revision             Result                  N
chromium@478553      934.224 +- 391.031      15      good
chromium@478629      878.889 +- 410.419      15      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 blink_perf.bindings

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8975985850358888896

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=6393300308721664


| 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 23 2017


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

Bisect Details
  Configuration: android_nexus5X_perf_bisect
  Benchmark    : blink_perf.bindings
  Metric       : typed-array-construct-from-same-type/typed-array-construct-from-same-type

Revision             Result                  N
chromium@478535      736.503 +- 122.16       17      good
chromium@478553      741.287 +- 65.9208      15      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 blink_perf.bindings

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8975985845483017280

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5902055773831168


| 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 8 by 42576172...@developer.gserviceaccount.com, Jun 24 2017


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

Bisect Details
  Configuration: android_nexus5X_perf_bisect
  Benchmark    : blink_perf.bindings
  Metric       : typed-array-construct-from-same-type/typed-array-construct-from-same-type

Revision             Result                  N
chromium@478535      757.947 +- 207.338      8       good
chromium@478553      801.394 +- 448.483      17      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 blink_perf.bindings

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8975951152306449232

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5902055773831168


| 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 24 2017

Mergedinto: 732704
Status: Duplicate (was: Untriaged)

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

Suspected Commit
  Author : hpayer
  Commit : b011c781cf639194aa596eb9cbffb42cf63635e5
  Date   : Mon Jun 12 10:37:49 2017
  Subject: [heap] Reland use larger marking steps during external allocation pressure

Bisect Details
  Configuration: android_nexus5X_perf_bisect
  Benchmark    : blink_perf.bindings
  Metric       : typed-array-construct-from-same-type/typed-array-construct-from-same-type
  Change       : 12.15% | 749.154775077 -> 658.142847054

Revision                           Result                  N
chromium@478553                    749.155 +- 24.1779      5      good
chromium@478591                    732.211 +- 60.0381      5      good
chromium@478601                    734.909 +- 53.4402      7      good
chromium@478606                    731.472 +- 82.7495      5      good
chromium@478607                    743.595 +- 54.5222      7      good
chromium@478607,v8@ee596af250      735.054 +- 63.9231      6      good
chromium@478607,v8@c31302d031      744.916 +- 22.8951      8      good
chromium@478607,v8@b011c781cf      633.864 +- 57.4719      5      bad       <--
chromium@478607,v8@fb55a9cbd8      624.643 +- 73.0978      5      bad
chromium@478608                    645.395 +- 15.6035      7      bad
chromium@478610                    646.466 +- 25.0203      6      bad
chromium@478629                    658.143 +- 23.7719      6      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 blink_perf.bindings

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8975951150729678192

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=6393300308721664


| 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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