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Issue metadata

Status: Fixed
Owner: ----
Closed: Jun 2017
Cc:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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81.6%-82.6% regression in system_health.common_mobile at 472098:472224

Project Member Reported by benhenry@google.com, May 22 2017

Issue description

weirdly, there's an impulse then a regression. Not sure if this is two things.
 
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, May 22 2017


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

Bisect Details
  Configuration: android_nexus6_perf_bisect
  Benchmark    : system_health.common_mobile
  Metric       : timeToFirstMeaningfulPaint_avg/background_media/background_media_imgur

Revision             Result                  N
chromium@472097      303.049 +- 73.2675      21      good
chromium@472224      307.31 +- 76.1696       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=background.media.imgur system_health.common_mobile

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8978871068509906576

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=6744001593475072


| 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!
Project Member

Comment 5 by 42576172...@developer.gserviceaccount.com, May 22 2017


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

Bisect Details
  Configuration: android_nexus6_perf_bisect
  Benchmark    : system_health.common_mobile
  Metric       : timeToFirstMeaningfulPaint_avg/background_media/background_media_imgur

Revision             Result                  N
chromium@472097      307.105 +- 73.8977      21      good
chromium@472224      308.762 +- 84.319       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=background.media.imgur system_health.common_mobile

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8978865349577086240

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=6744001593475072


| 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!
Status: Fixed (was: Untriaged)
Looks like something landed but got reverted, the metric has recovered to the previous level. 

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