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Issue metadata

Status: Duplicate
Merged: issue 728796
Owner: ----
Closed: Jun 2017
Cc:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression

Blocked on:
issue 729816



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13.1%-369.7% regression in thread_times.simple_mobile_sites at 475935:476161

Project Member Reported by m...@chromium.org, Jun 2 2017

Issue description

See the link to graphs below.
 

=== BISECT JOB RESULTS ===
Bisect failed for unknown reasons

Please contact the team (see below) and report the error.


Bisect Details
  Configuration: android_one_perf_bisect
  Benchmark    : thread_times.simple_mobile_sites
  Metric       : thread_other_cpu_time_per_frame/thread_other_cpu_time_per_frame


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 thread_times.simple_mobile_sites

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8977856184956292432

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=6716821656305664


| 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!

=== BISECT JOB RESULTS ===
Bisect failed for unknown reasons

Please contact the team (see below) and report the error.


Bisect Details
  Configuration: android_one_perf_bisect
  Benchmark    : thread_times.simple_mobile_sites
  Metric       : thread_other_cpu_time_per_frame/thread_other_cpu_time_per_frame


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 thread_times.simple_mobile_sites

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8977853685386338992

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=6716821656305664


| 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!

Comment 6 by m...@chromium.org, Jun 5 2017

Blockedon: 729816
Looks like gclient failed to sync on the initial recipe steps. I know there were a bunch of gclient changes/reverted last week, so I'll try kicking this off again.
Mergedinto: 728796
Status: Duplicate (was: Untriaged)

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

Suspected Commit
  Author : khushalsagar
  Commit : 4e1be6ae8914f0eeed1df004b74a467bcb93241b
  Date   : Wed May 31 21:45:49 2017
  Subject: cc: Enable perf testing for checker-imaging.

Bisect Details
  Configuration: android_nexus7_perf_bisect
  Benchmark    : thread_times.simple_mobile_sites
  Metric       : thread_other_cpu_time_per_frame/thread_other_cpu_time_per_frame
  Change       : 112.10% | 0.241538206476 -> 0.512311125502

Revision             Result                      N
chromium@475952      0.241538 +- 0.0342467       7      good
chromium@476021      0.251191 +- 0.00730094      6      good
chromium@476038      0.247235 +- 0.0344652       6      good
chromium@476040      0.253555 +- 0.00824331      6      good
chromium@476041      0.534799 +- 0.0517683       6      bad       <--
chromium@476043      0.536849 +- 0.03826         6      bad
chromium@476047      0.528379 +- 0.0388082       6      bad
chromium@476055      0.511121 +- 0.0464718       6      bad
chromium@476089      0.512311 +- 0.0340013       6      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 thread_times.simple_mobile_sites

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8977575018283865872

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=6437208480808960


| 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!

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