New issue
Advanced search Search tips

Issue 734048 link

Starred by 1 user

Issue metadata

Status: Duplicate
Merged: issue 732711
Owner: ----
Closed: Jun 2017
Cc:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



Sign in to add a comment

1.1%-10.9% regression in v8.runtime_stats.top_25 at 477229:477300

Project Member Reported by tebbi@chromium.org, Jun 16 2017

Issue description

See the link to graphs below.
 
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, Jun 16 2017

Mergedinto: 732711
Status: Duplicate (was: Untriaged)

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

Suspected Commit
  Author : jgruber
  Commit : 866ee63c581393185de63319aae94b21fc4069dd
  Date   : Tue Jun 06 11:28:37 2017
  Subject: [string] Re-enable result caching for String.p.split

Bisect Details
  Configuration: mac_10_11_perf_bisect
  Benchmark    : v8.runtime_stats.top_25
  Metric       : IC:duration_avg/http___inbox.google.com
  Change       : 10.77% | 9.29044444444 -> 10.2913333333

Revision                           Result                   N
chromium@477228                    9.29044 +- 1.15671       9      good
chromium@477258                    8.956 +- 0.586747        6      good
chromium@477273                    9.31333 +- 0.422371      6      good
chromium@477280                    9.188 +- 0.446029        6      good
chromium@477284                    9.35389 +- 0.52747       9      good
chromium@477284,v8@c22ca7f73b      9.21083 +- 0.544214      6      good
chromium@477284,v8@866ee63c58      10.2957 +- 1.84352       9      bad       <--
chromium@477284,v8@a5838cc92b      10.005 +- 0.472978       6      bad
chromium@477285                    9.83333 +- 0.504565      9      bad
chromium@477286                    10.0292 +- 0.545035      6      bad
chromium@477287                    10.2913 +- 1.27995       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=http...inbox.google.com v8.runtime_stats.top_25

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8976628037696449536

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5295664457580544


| 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!

Sign in to add a comment