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Issue metadata

Status: Duplicate
Merged: issue 750862
Owner: ----
Closed: Aug 2017
Cc:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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9.1%-30.8% regression in smoothness.top_25_smooth at 490015:490218

Project Member Reported by majidvp@google.com, Jul 31 2017

Issue description

See the link to graphs below.
 
Project Member

Comment 1 by 42576172...@developer.gserviceaccount.com, Jul 31 2017

All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=750705

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=3df64f038650294c148b57629a0f285896cc5be9c98041404173562da086e2b1


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

chromium-rel-win7-dual
chromium-rel-win7-gpu-intel
chromium-rel-win7-x64-dual
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, Jul 31 2017


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

Bisect Details
  Configuration: winx64intel_perf_bisect
  Benchmark    : smoothness.top_25_smooth
  Metric       : mean_input_event_latency/http___news.yahoo.com

Revision             Result                  N
chromium@490067      15.6907 +- 14.6045      21      good
chromium@490187      15.1359 +- 12.3819      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=http...news.yahoo.com smoothness.top_25_smooth

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8972538189104731376


For feedback, file a bug with component Speed>Bisection
Kicked off a few more bisects.
Project Member

Comment 8 by 42576172...@developer.gserviceaccount.com, Aug 21 2017

Mergedinto: 750862
Status: Duplicate (was: Untriaged)

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

Suspected Commit
  Author : Khushal
  Commit : ca2c1cf2d9748d25050bfe7f71ee40463588a6a9
  Date   : Thu Jul 27 23:06:43 2017
  Subject: cc: Split pending tree duration metrics based on main/impl side tree.

Bisect Details
  Configuration: win_x64_perf_bisect
  Benchmark    : smoothness.top_25_smooth
  Metric       : frame_times/https___www.google.com_search?q_cats_tbm_isch
  Change       : 11.70% | 17.9281270034 -> 20.0260509979

Revision             Result                   N
chromium@490056      17.9281 +- 2.35654       6      good
chromium@490062      17.3752 +- 1.0944        6      good
chromium@490063      20.064 +- 0.405906       6      bad       <--
chromium@490064      20.1792 +- 0.297931      6      bad
chromium@490065      20.0412 +- 0.338072      6      bad
chromium@490067      19.992 +- 0.584594       6      bad
chromium@490077      20.073 +- 0.131882       6      bad
chromium@490097      20.043 +- 0.341177       6      bad
chromium@490137      20.0516 +- 0.240352      6      bad
chromium@490218      20.0261 +- 0.337783      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=https...www.google.com.search.q.cats.tbm.isch smoothness.top_25_smooth

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8970613317057334752


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

Comment 9 by 42576172...@developer.gserviceaccount.com, Aug 22 2017


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

Suspected Commit
  Author : Khushal
  Commit : ca2c1cf2d9748d25050bfe7f71ee40463588a6a9
  Date   : Thu Jul 27 23:06:43 2017
  Subject: cc: Split pending tree duration metrics based on main/impl side tree.

Bisect Details
  Configuration: win_x64_perf_bisect
  Benchmark    : smoothness.top_25_smooth
  Metric       : frame_times/https___www.google.com_search?q_cats_tbm_isch
  Change       : 14.98% | 17.4953791299 -> 20.1157946926

Revision             Result                   N
chromium@490056      17.4954 +- 1.55257       6      good
chromium@490062      17.0483 +- 1.06333       6      good
chromium@490063      20.0757 +- 0.350988      6      bad       <--
chromium@490064      20.216 +- 0.257546       6      bad
chromium@490065      20.0921 +- 0.32974       6      bad
chromium@490067      20.0461 +- 0.307534      6      bad
chromium@490077      20.1185 +- 0.245631      6      bad
chromium@490097      20.0513 +- 0.419022      6      bad
chromium@490137      20.1319 +- 0.257408      6      bad
chromium@490218      20.1158 +- 0.393945      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=https...www.google.com.search.q.cats.tbm.isch smoothness.top_25_smooth

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8970613294629326800


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

Comment 10 by 42576172...@developer.gserviceaccount.com, Aug 22 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: 099c1190811a71b20162df04a53368b3d2a7f0ef
  bad_revision : e735d5fc13caaa2fe9b188cfc86a4fe62e6eee81

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


Bisect Details
  Configuration: winx64nvidia_perf_bisect
  Benchmark    : smoothness.tough_animation_cases
  Metric       : frame_times/frame_times

Revision             Result                    N
chromium@489914      18.5711 +- 0.0529675      6      good
chromium@490073      18.5844 +- 0.0269676      6      good
chromium@490152      18.5905 +- 0.0285558      6      good
chromium@490192      18.655 +- 0.105082        6      good
chromium@490212      18.7613 +- 0.0576561      6      bad
chromium@490231      18.7484 +- 0.0327284      6      bad
chromium@490547      18.7969 +- 0.0503042      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 smoothness.tough_animation_cases

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8970613275223977984


For feedback, file a bug with component Speed>Bisection

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