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Issue 728375 link

Starred by 1 user
Status: Duplicate
Merged: issue 729759
Owner: ----
Closed: Jun 2017
Cc:
█ jasontiller@chromium.org
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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98.4% regression in system_health.common_mobile at 475582:475615

Project Member Reported by jasontiller@chromium.org, May 31 2017 
See the link to graphs below.

Comment 1 by jasontiller@chromium.org, May 31 2017 

All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=728375

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDghsflsQsM


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

android-webview-nexus6
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, Jun 2 2017 


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

Bisect Details
  Configuration: android_webview_nexus6_aosp_perf_bisect
  Benchmark    : system_health.common_mobile
  Metric       : timeToFirstMeaningfulPaint_avg/browse_media/browse_media_youtube

Revision             Result                  N
chromium@475581      1453.25 +- 716.462      21      good
chromium@475615      2134.29 +- 3852.01      21      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=browse.media.youtube system_health.common_mobile

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8978042482994288432

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=4945338906968064


| 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, Jun 3 2017 


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

Bisect Details
  Configuration: android_webview_nexus6_aosp_perf_bisect
  Benchmark    : system_health.common_mobile
  Metric       : timeToFirstMeaningfulPaint_avg/browse_media/browse_media_youtube

Revision             Result                  N
chromium@475581      1453.25 +- 716.462      21      good
chromium@475615      2134.29 +- 3852.01      21      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=browse.media.youtube system_health.common_mobile

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8977861238694928688

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=4945338906968064


| 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 7 by 42576172...@developer.gserviceaccount.com, Jun 8 2017 


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

Bisect Details
  Configuration: android_webview_nexus6_aosp_perf_bisect
  Benchmark    : system_health.common_mobile
  Metric       : timeToFirstMeaningfulPaint_avg/browse_media/browse_media_youtube

Revision             Result                  N
chromium@475581      1279.74 +- 1270.52      21      good
chromium@475615      1940.62 +- 3876.56      21      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=browse.media.youtube system_health.common_mobile

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8977562781598612176

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5695620167237632


| 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 10 by simonhatch@chromium.org, Jun 8 2017 

The webview values are really noisy, trying on the android one instead.
Project Member

Comment 11 by 42576172...@developer.gserviceaccount.com, Jun 8 2017

Mergedinto: 729759
Status: Duplicate (was: Untriaged)

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

Suspected Commit
  Author : fsamuel
  Commit : 505078044cfca8e67070b4daed6e6157d7641774
  Date   : Tue May 30 18:21:01 2017
  Subject: SurfaceDependencyTracker: Only observe BeginFrames if a deadline is needed

Bisect Details
  Configuration: android_one_perf_bisect
  Benchmark    : system_health.common_mobile
  Metric       : timeToFirstContentfulPaint_avg/browse_media/browse_media_facebook_photos
  Change       : 18.60% | 484.44090625 -> 574.528208333

Revision             Result                  N
chromium@475540      484.441 +- 60.7915      6      good
chromium@475575      464.276 +- 61.4085      6      good
chromium@475593      445.43 +- 69.7196       6      good
chromium@475598      457.241 +- 53.0315      6      good
chromium@475600      475.778 +- 83.4192      6      good
chromium@475601      567.081 +- 46.675       6      bad       <--
chromium@475602      574.151 +- 54.6132      6      bad
chromium@475610      568.362 +- 56.5801      6      bad
chromium@475679      574.528 +- 45.3745      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 --story-filter=browse.media.facebook.photos system_health.common_mobile

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8977344597212097728

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=6352031092047872


| 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 12 by 42576172...@developer.gserviceaccount.com, Jun 10 2017 


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

Bisect Details
  Configuration: android_webview_nexus6_aosp_perf_bisect
  Benchmark    : system_health.common_mobile
  Metric       : timeToFirstMeaningfulPaint_avg/browse_media/browse_media_youtube

Revision             Result                  N
chromium@475581      1279.74 +- 1270.52      21      good
chromium@475615      1940.62 +- 3876.56      21      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=browse.media.youtube system_health.common_mobile

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8977393155474522832

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5695620167237632


| 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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