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Issue 773690 link

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Issue metadata

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



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10.2% regression in blink_perf.bindings at 505642:505737

Project Member Reported by nzolghadr@chromium.org, Oct 11 2017

Issue description

See the link to graphs below.
 
Project Member

Comment 1 by 42576172...@developer.gserviceaccount.com, Oct 11 2017

All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=773690

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=b4f99bd317cb361aa508e931f7b8913c4a3038348b73ae1a11a0891200299c00


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

android-webview-nexus6
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, Oct 12 2017


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

Error: INFRA_FAILURE

The bisect was able to narrow the range, you can try running with:
  good_revision: 75b9c7f5b21199029cddaa14b0e9532ae941f603
  bad_revision : 2e63fde900b233194ce1ef52acf160f0b410131e

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


Bisect Details
  Configuration: android_webview_nexus6_aosp_perf_bisect
  Benchmark    : blink_perf.bindings
  Metric       : get-attribute-rare/get-attribute-rare

Revision             Result                   N
chromium@505641      52.9273 +- 0.389299      6      good
chromium@505689      56.8841 +- 0.998666      6      good
chromium@505713      57.641 +- 1.87189        6      good
chromium@505719      58.2402 +- 0.879698      6      good
chromium@505721      45.9616 +- 1.25186       6      bad
chromium@505722      45.9973 +- 0.830752      6      bad
chromium@505725      45.9335 +- 0.784676      6      bad
chromium@505737      48.3355 +- 1.07435       6      bad

Please refer to the following doc on diagnosing blink_perf regressions:
  https://chromium.googlesource.com/chromium/src/+/master/docs/speed/benchmark_harnesses/blink_perf.md

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/8966020095860199568


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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