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Issue 762187 link

Starred by 1 user
Status: Duplicate
Merged: issue 760886
Owner: ----
Closed: Sep 2017
Cc:
█ briander...@chromium.org
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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1.5%-299.3% regression in smoothness.sync_scroll.key_mobile_sites_smooth at 498452:498815

Project Member Reported by briander...@chromium.org, Sep 5 2017 
See the link to graphs below.
Project Member

Comment 1 by 42576172...@developer.gserviceaccount.com, Sep 5 2017 

All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=762187

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=4b4e4ed85ea395cb114ce2312a99bb71499b6986c99947efb539ff78ddf777b5


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

android-nexus5X
android-nexus7v2
android-webview-nexus5X
android-webview-nexus6
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, Sep 5 2017 


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

Bisect Details
  Configuration: android_nexus7_perf_bisect
  Benchmark    : smoothness.sync_scroll.key_mobile_sites_smooth
  Metric       : mean_input_event_latency/https___www.google.co.uk_search?hl_en_q_barack+obama_cad_h

Revision             Result                  N
chromium@498507      221.73 +- 345.5         21      good
chromium@498628      198.429 +- 293.844      21      bad

To Run This Test
  src/tools/perf/run_benchmark -v --browser=android-chromium --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=https...www.google.co.uk.search.hl.en.q.barack.obama.cad.h smoothness.sync_scroll.key_mobile_sites_smooth

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8969257073846323216


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

Comment 6 by 42576172...@developer.gserviceaccount.com, Sep 6 2017

Mergedinto: 760966
Status: Duplicate (was: Untriaged)

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

Suspected Commit
  Author : Sunny Sachanandani
  Commit : c7a7949c958b4867600ca716968da430fd9b952f
  Date   : Wed Aug 30 22:21:33 2017
  Subject: cc: Flush command buffers when all tiles are done.

Bisect Details
  Configuration: android_webview_arm64_aosp_perf_bisect
  Benchmark    : smoothness.sync_scroll.key_mobile_sites_smooth
  Metric       : frame_times/http___m.youtube.com_watch?v_9hBpF_Zj4OA
  Change       : 9.94% | 17.3553694086 -> 19.0809706648

Revision             Result                   N
chromium@498451      17.3554 +- 2.4959        9      good
chromium@498633      17.0795 +- 1.37877       6      good
chromium@498639      17.3327 +- 1.1349        6      good
chromium@498640      19.8068 +- 0.900688      6      bad       <--
chromium@498641      19.7219 +- 1.79008       6      bad
chromium@498642      19.5311 +- 1.65186       6      bad
chromium@498645      19.4139 +- 1.26144       6      bad
chromium@498656      19.0781 +- 1.11374       6      bad
chromium@498679      19.9688 +- 3.18571       9      bad
chromium@498724      19.5791 +- 1.29155       6      bad
chromium@498815      19.081 +- 3.53778        9      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 --story-filter=http...m.youtube.com.watch.v.9hBpF.Zj4OA smoothness.sync_scroll.key_mobile_sites_smooth

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8969251784031788928


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

Comment 7 by 42576172...@developer.gserviceaccount.com, Sep 6 2017 


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

Suspected Commit
  Author : Sunny Sachanandani
  Commit : c7a7949c958b4867600ca716968da430fd9b952f
  Date   : Wed Aug 30 22:21:33 2017
  Subject: cc: Flush command buffers when all tiles are done.

Bisect Details
  Configuration: android_webview_arm64_aosp_perf_bisect
  Benchmark    : smoothness.sync_scroll.key_mobile_sites_smooth
  Metric       : frame_times/http___m.youtube.com_watch?v_9hBpF_Zj4OA
  Change       : 14.64% | 16.9923891024 -> 19.4797548617

Revision             Result                   N
chromium@498451      16.9924 +- 1.47003       9      good
chromium@498633      17.2397 +- 1.19341       6      good
chromium@498639      17.1074 +- 0.995383      6      good
chromium@498640      19.6371 +- 1.01434       6      bad       <--
chromium@498641      19.5477 +- 0.507683      6      bad
chromium@498642      19.549 +- 1.03125        6      bad
chromium@498645      19.5877 +- 1.02725       6      bad
chromium@498656      19.1865 +- 1.97019       6      bad
chromium@498679      19.8288 +- 0.680557      6      bad
chromium@498724      19.4658 +- 1.84411       6      bad
chromium@498815      19.4798 +- 2.21209       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 --story-filter=http...m.youtube.com.watch.v.9hBpF.Zj4OA smoothness.sync_scroll.key_mobile_sites_smooth

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8969251729668233696


For feedback, file a bug with component Speed>Bisection

Comment 8 by sullivan@chromium.org, Sep 6 2017

Mergedinto: -760966 760886
►

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