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Issue 728363 link

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Issue metadata

Status: Duplicate
Merged: issue 728682
Owner: ----
Closed: Jun 2017
Cc:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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15.4%-18.3% regression in blink_perf.bindings at 475389:475393

Project Member Reported by jasontiller@chromium.org, May 31 2017

Issue description

See the link to graphs below.
 
Mergedinto: 728682
Status: Duplicate (was: Untriaged)

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

Suspected Commit
  Author : Camillo Bruni
  Commit : e822488d76755d9fdb9938adb01c90428f5b7131
  Date   : Mon May 29 13:27:17 2017
  Subject: [runtime] Directly support double values in CloneShallowObjectLiteral

Bisect Details
  Configuration: android_webview_nexus6_aosp_perf_bisect
  Benchmark    : blink_perf.bindings
  Metric       : node-type/node-type
  Change       : 17.27% | 234.047017506 -> 193.634362359

Revision                           Result                  N
chromium@475388                    234.047 +- 18.2309      6      good
chromium@475388,v8@2ba1fcda5f      230.852 +- 1.55965      6      good
chromium@475388,v8@74681db644      233.906 +- 17.0011      6      good
chromium@475388,v8@e822488d76      193.569 +- 11.9056      6      bad       <--
chromium@475388,v8@8f7af5fb13      193.417 +- 11.0614      6      bad
chromium@475389                    193.256 +- 11.8745      6      bad
chromium@475390                    193.549 +- 10.8734      6      bad
chromium@475391                    193.283 +- 10.8508      6      bad
chromium@475393                    193.634 +- 11.3531      6      bad

To Run This Test
  src/tools/perf/run_benchmark -v --browser=android-webview --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests blink_perf.bindings

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8978043332712350560

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5212314610958336


| 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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