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Issue 766618 link

Starred by 2 users

Issue metadata

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



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33.2% improvement in blink_perf.bindings at 501351:501407

Project Member Reported by alexclarke@chromium.org, Sep 19 2017

Issue description

Suspiciously large improvement, could this be a bug?
 
Project Member

Comment 1 by 42576172...@developer.gserviceaccount.com, Sep 19 2017

All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=766618

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=d715b3568784663e696cad61032c16ccacbc86f491ccb2b1cafb5df59eb83d1e


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

android-webview-nexus5X
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, Sep 21 2017


=== BISECT JOB RESULTS ===
Bisect was unable to run to completion

Error: TIMEOUT

The bisect was able to narrow the range, you can try running with:
  good_revision: 80806e4e369dac6375d5e36054e063832dc613e8
  bad_revision : fc6cfd50c4eec740276d7245bb430f73faa77452

If failures persist contact the team (see below) and report the error.


Bisect Details
  Configuration: android_webview_arm64_aosp_perf_bisect
  Benchmark    : blink_perf.bindings
  Metric       : document-implementation/document-implementation
  Change       : 28.66% | 130.180423529 -> 167.484098255

Revision             Result                  N
chromium@501350      130.18 +- 1.58198       6      good
chromium@501379      163.263 +- 32.0966      6      bad
chromium@501407      167.484 +- 24.3565      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

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8968029821064164000


For feedback, file a bug with component Speed>Bisection
Status: WontFix (was: Untriaged)
Bisect unable to find culprit, this regression exists in stable. Ignoring.

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