New issue
Advanced search Search tips

Issue 739744 link

Starred by 3 users
Status: Duplicate
Merged: issue 738718
Owner:
jgruber@chromium.org
Closed: Jul 2017
Cc:
bmeu...@chromium.org
jgruber@chromium.org
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



Sign in to add a comment

1.5%-52.6% regression in v8.browsing_desktop at 483474:483710

Project Member Reported by jgruber@chromium.org, Jul 6 2017 
See the link to graphs below.
Project Member

Comment 1 by 42576172...@developer.gserviceaccount.com, Jul 6 2017 

All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=739744

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=b15699b76272b51fc5abb47ba5d48c1f77e6106a3cede258dbf6986470f51585


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

chromium-rel-mac11-air
chromium-rel-win7-gpu-intel
chromium-rel-win7-gpu-nvidia
chromium-rel-win8-dual
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, Jul 6 2017 


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

Bisect Details
  Configuration: win_8_perf_bisect
  Benchmark    : v8.browsing_desktop
  Metric       : v8-gc-latency-mark-compactor_sum/browse_social/browse_social_twitter

Revision             Result                  N
chromium@483663      4.54976 +- 5.58009      21      good
chromium@483707      4.5931 +- 6.61103       21      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=browse.social.twitter v8.browsing_desktop

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8974805861812633184


For feedback, file a bug with component Speed>Bisection
Project Member

Comment 7 by 42576172...@developer.gserviceaccount.com, Jul 7 2017 


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

Bisect Details
  Configuration: winx64nvidia_perf_bisect
  Benchmark    : v8.browsing_desktop
  Metric       : v8-gc-scavenger_avg/browse_media/browse_media_youtube

Revision             Result                   N
chromium@483660      1.15559 +- 0.38651       21      good
chromium@483697      1.17447 +- 0.425784      21      bad

To Run This Test
  src/tools/perf/run_benchmark -v --browser=release_x64 --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=browse.media.youtube v8.browsing_desktop

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8974747960884740080


For feedback, file a bug with component Speed>Bisection
Project Member

Comment 8 by 42576172...@developer.gserviceaccount.com, Jul 7 2017 


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

Bisect Details
  Configuration: win_8_perf_bisect
  Benchmark    : v8.browsing_desktop
  Metric       : v8-gc-latency-mark-compactor_sum/browse_social/browse_social_twitter

Revision             Result                  N
chromium@483663      4.33252 +- 6.19527      21      good
chromium@483707      4.27081 +- 5.89909      21      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=browse.social.twitter v8.browsing_desktop

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8974747969597453088


For feedback, file a bug with component Speed>Bisection
Project Member

Comment 9 by 42576172...@developer.gserviceaccount.com, Jul 7 2017

Cc: bmeu...@chromium.org
Owner: bmeu...@chromium.org

=== Auto-CCing suspected CL author bmeurer@chromium.org ===

Hi bmeurer@chromium.org, the bisect results pointed to your CL, please take a look at the
results.


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

Suspected Commit
  Author : bmeurer
  Commit : adf7f54e24c4b31207b4df0e30c28f7579b18f5c
  Date   : Thu Jun 29 10:18:19 2017
  Subject: [turbofan] Extend escape analysis to reduce certain CheckMaps.

Bisect Details
  Configuration: mac_air_perf_bisect
  Benchmark    : system_health.memory_desktop
  Metric       : memory:chrome:renderer_processes:reported_by_chrome:v8:heap:allocated_objects_size_avg/browse_social/browse_social_twitter
  Change       : 1.68% | 25197625.3333 -> 25620673.3333

Revision                           Result                   N
chromium@483356                    25197625 +- 73957.4      6       good
chromium@483379                    25247987 +- 170210       9       good
chromium@483390                    25280210 +- 536656       14      good
chromium@483396                    25251967 +- 116266       6       good
chromium@483399                    25236921 +- 185449       6       good
chromium@483400                    25232380 +- 136021       6       good
chromium@483400,v8@8b0873f8d7      25245061 +- 134002       6       good
chromium@483400,v8@73ce185915      25238641 +- 81077.7      6       good
chromium@483400,v8@adf7f54e24      25686236 +- 75863.9      6       bad       <--
chromium@483400,v8@365fd66139      25681168 +- 51134.4      6       bad
chromium@483401                    25648572 +- 414088       9       bad
chromium@483445                    25484048 +- 455045       6       bad
chromium@483533                    25622263 +- 344543       6       bad
chromium@483710                    25620673 +- 358516       6       bad

Please refer to the following doc on diagnosing memory regressions:
  https://chromium.googlesource.com/chromium/src/+/master/docs/memory-infra/memory_benchmarks.md

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=browse.social.twitter system_health.memory_desktop

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8974747940752651456


For feedback, file a bug with component Speed>Bisection

Comment 10 by bmeu...@chromium.org, Jul 7 2017

Owner: jgruber@chromium.org
That CL got reverted already, so can't be the culprit.

Comment 11 by jgruber@chromium.org, Jul 10 2017 

FYI: It does seem to be the culprit for the specific benchmark in #9 (the revert is in the range where the regression is fixed). 

The other three alerts in this bug seem to be unrelated though, starting off another bisect on those.
Project Member

Comment 15 by 42576172...@developer.gserviceaccount.com, Jul 10 2017 


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

Bisect Details
  Configuration: winx64intel_perf_bisect
  Benchmark    : v8.browsing_desktop
  Metric       : v8-gc-scavenger_avg/browse_social/browse_social_facebook_infinite_scroll

Revision             Result                  N
chromium@483661      3.03897 +- 1.68263      21      good
chromium@483697      2.9781 +- 2.17239       21      bad

To Run This Test
  src/tools/perf/run_benchmark -v --browser=release_x64 --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=browse.social.facebook.infinite.scroll v8.browsing_desktop

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8974464552001709472


For feedback, file a bug with component Speed>Bisection
Project Member

Comment 16 by 42576172...@developer.gserviceaccount.com, Jul 10 2017 


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

Bisect Details
  Configuration: winx64nvidia_perf_bisect
  Benchmark    : v8.browsing_desktop
  Metric       : v8-gc-scavenger_avg/browse_media/browse_media_youtube

Revision             Result                   N
chromium@483660      1.15069 +- 0.42999       21      good
chromium@483697      1.09406 +- 0.456149      21      bad

To Run This Test
  src/tools/perf/run_benchmark -v --browser=release_x64 --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=browse.media.youtube v8.browsing_desktop

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8974464545074984048


For feedback, file a bug with component Speed>Bisection
Project Member

Comment 17 by 42576172...@developer.gserviceaccount.com, Jul 10 2017 


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

Bisect Details
  Configuration: win_8_perf_bisect
  Benchmark    : v8.browsing_desktop
  Metric       : v8-gc-latency-mark-compactor_sum/browse_social/browse_social_twitter

Revision             Result                  N
chromium@483663      3.82638 +- 2.98568      21      good
chromium@483817      3.31281 +- 7.88546      21      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=browse.social.twitter v8.browsing_desktop

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8974464565243196592


For feedback, file a bug with component Speed>Bisection
Project Member

Comment 20 by 42576172...@developer.gserviceaccount.com, Jul 11 2017 


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

Bisect Details
  Configuration: win_8_perf_bisect
  Benchmark    : v8.browsing_desktop
  Metric       : v8-gc-latency-mark-compactor_sum/browse_social/browse_social_twitter

Revision             Result                  N
chromium@483663      3.97657 +- 5.19704      21      good
chromium@483707      4.67048 +- 7.32294      21      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=browse.social.twitter v8.browsing_desktop

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8974362900170844288


For feedback, file a bug with component Speed>Bisection
Project Member

Comment 21 by 42576172...@developer.gserviceaccount.com, Jul 11 2017

Mergedinto: 738718
Status: Duplicate (was: Untriaged)

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

Suspected Commit
  Author : Ulan Degenbaev
  Commit : f341bb0f623821e56349735e47e1a9094f65d9a3
  Date   : Fri Jun 30 12:03:04 2017
  Subject: Revert "[heap] Allow a minimum semi-space size of 512K."

Bisect Details
  Configuration: winx64nvidia_perf_bisect
  Benchmark    : v8.browsing_desktop
  Metric       : v8-gc-scavenger_avg/browse_media/browse_media_youtube
  Change       : 41.42% | 1.09690160353 -> 1.55118539321

Revision                           Result                   N
chromium@483660                    1.0969 +- 0.115868       6       good
chromium@483717                    1.11512 +- 0.283262      9       good
chromium@483725                    1.11206 +- 0.128033      6       good
chromium@483729                    1.18153 +- 0.243787      6       good
chromium@483729,v8@ca93156294      1.22747 +- 0.532514      9       good
chromium@483729,v8@f341bb0f62      1.52275 +- 0.164062      6       bad       <--
chromium@483729,v8@fa4314da8b      1.50718 +- 0.506231      14      bad
chromium@483729,v8@bfbabce113      1.6004 +- 0.2862         9       bad
chromium@483730                    1.55236 +- 0.14384       6       bad
chromium@483731                    1.5046 +- 0.161778       6       bad
chromium@483732                    1.50793 +- 0.24601       6       bad
chromium@483746                    1.55888 +- 0.117391      6       bad
chromium@483774                    1.46694 +- 0.333403      6       bad
chromium@483888                    1.55119 +- 0.241471      6       bad

To Run This Test
  src/tools/perf/run_benchmark -v --browser=release_x64 --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=browse.media.youtube v8.browsing_desktop

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8974362852619966032


For feedback, file a bug with component Speed>Bisection
►

Sign in to add a comment