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Issue 669151 link

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Issue metadata

Status: Duplicate
Owner: ----
Closed: Nov 2016
Cc:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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51.8% regression in smoothness.top_25_smooth at 434127:434144

Project Member Reported by benhenry@chromium.org, Nov 28 2016

Issue description

See graphs below. This is a bit noisy, so bisection might be difficult.
 
All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=669151

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg-8Hi7AgM


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

chromium-rel-mac11
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, Nov 28 2016


===== BISECT JOB RESULTS =====
Status: failed


=== Bisection aborted ===
The bisect was aborted because Bisect cannot identify a culprit: Bisect failed to reproduce the regression with enough confidence.
Please contact the the team (see below) if you believe this is in error.

===== TESTED REVISIONS =====
Revision         Mean     Std Dev  N   Good?
chromium@434126  2.46074  1.79502  27  good
chromium@434144  2.39381  1.59938  27  bad

Bisect job ran on: mac_10_11_perf_bisect
Bug ID: 669151

Test Command: src/tools/perf/run_benchmark -v --browser=release --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=http...games.yahoo.com smoothness.top_25_smooth
Test Metric: first_gesture_scroll_update_latency/http___games.yahoo.com
Relative Change: None

Buildbot stdio: http://build.chromium.org/p/tryserver.chromium.perf/builders/mac_10_11_perf_bisect/builds/1061
Job details: https://chromeperf.appspot.com/buildbucket_job_status/8994721805717824512


Not what you expected? We'll investigate and get back to you!
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5900751270838272

| 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 Tests>AutoBisect.  Thank you!
Project Member

Comment 6 by 42576172...@developer.gserviceaccount.com, Nov 29 2016

Mergedinto: 669172
Status: Duplicate (was: Untriaged)

===== BISECT JOB RESULTS =====
Status: completed


===== SUSPECTED CL(s) =====
Subject : Update ts_proxy to latest commit
Author  : nednguyen
Commit description:
  
For all the changes, see: https://github.com/WPO-Foundation/tsproxy/compare/6fae6141104d077c8ceb1136b6ddee5b98f30240...9ae7d2ff822cb7cef15bc54ff614273c99691744

The main change is "Reduced CPU impact when idle or running in bypass mode".

Bug: https://code.google.com/p/chrome-os-partner/issues/detail?id=60009

BUG=chromium:653519

Review-Url: https://codereview.chromium.org/2516973005
Commit  : 4e71cc39324b205febf5a4cfa3a089a1e2aeab74
Date    : Wed Nov 23 17:55:09 2016


===== TESTED REVISIONS =====
Revision                             Mean     Std Dev    N  Good?
chromium@434126                      2.48063  0.895288   8  good
chromium@434213                      2.22988  0.716979   8  good
chromium@434235                      2.37613  0.700409   8  good
chromium@434246                      2.39     0.671126   8  good
chromium@434248                      2.36413  0.948154   8  good
chromium@434248,catapult@982d024dad  2.31038  0.457132   8  good
chromium@434248,catapult@4e71cc3932  3.4522   0.207217   5  bad    <--
chromium@434249                      3.3632   0.376514   5  bad
chromium@434251                      3.4674   0.133728   5  bad
chromium@434256                      3.4574   0.070945   5  bad
chromium@434299                      3.4592   0.0926434  5  bad

Bisect job ran on: mac_10_11_perf_bisect
Bug ID: 669151

Test Command: src/tools/perf/run_benchmark -v --browser=release --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=http...games.yahoo.com smoothness.top_25_smooth
Test Metric: first_gesture_scroll_update_latency/http___games.yahoo.com
Relative Change: 39.45%

Buildbot stdio: http://build.chromium.org/p/tryserver.chromium.perf/builders/mac_10_11_perf_bisect/builds/1066
Job details: https://chromeperf.appspot.com/buildbucket_job_status/8994715652902827088


Not what you expected? We'll investigate and get back to you!
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5858381552680960

| 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 Tests>AutoBisect.  Thank you!
Project Member

Comment 7 by 42576172...@developer.gserviceaccount.com, Nov 29 2016


===== BISECT JOB RESULTS =====
Status: completed


===== SUSPECTED CL(s) =====
Subject : Update ts_proxy to latest commit
Author  : nednguyen
Commit description:
  
For all the changes, see: https://github.com/WPO-Foundation/tsproxy/compare/6fae6141104d077c8ceb1136b6ddee5b98f30240...9ae7d2ff822cb7cef15bc54ff614273c99691744

The main change is "Reduced CPU impact when idle or running in bypass mode".

Bug: https://code.google.com/p/chrome-os-partner/issues/detail?id=60009

BUG=chromium:653519

Review-Url: https://codereview.chromium.org/2516973005
Commit  : 4e71cc39324b205febf5a4cfa3a089a1e2aeab74
Date    : Wed Nov 23 17:55:09 2016


===== TESTED REVISIONS =====
Revision                             Mean     Std Dev   N  Good?
chromium@434151                      2.4005   0.945846  8  good
chromium@434225                      2.47313  0.923336  8  good
chromium@434244                      2.35763  0.858863  8  good
chromium@434247                      2.37012  1.05133   8  good
chromium@434248                      2.46975  0.800922  8  good
chromium@434248,catapult@982d024dad  2.29788  0.614745  8  good
chromium@434248,catapult@4e71cc3932  3.4326   0.179073  5  bad    <--
chromium@434249                      3.525    0.308117  5  bad
chromium@434253                      3.5194   0.259521  5  bad
chromium@434262                      3.447    0.106733  5  bad
chromium@434299                      3.5198   0.162194  5  bad

Bisect job ran on: mac_10_11_perf_bisect
Bug ID: 669151

Test Command: src/tools/perf/run_benchmark -v --browser=release --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=http...games.yahoo.com smoothness.top_25_smooth
Test Metric: first_gesture_scroll_update_latency/http___games.yahoo.com
Relative Change: 46.63%

Buildbot stdio: http://build.chromium.org/p/tryserver.chromium.perf/builders/mac_10_11_perf_bisect/builds/1069
Job details: https://chromeperf.appspot.com/buildbucket_job_status/8994709767411462208


Not what you expected? We'll investigate and get back to you!
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5877497646809088

| 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 Tests>AutoBisect.  Thank you!

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