All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=633950

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgprnjpwsM


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

android-nexus7v2

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/9005355075996993968

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


=== Bisection aborted ===
The bisect was aborted because The metric values for the initial "good" and "bad" revisions do not represent a clear regression.
Please contact the the team (see below) if you believe this is in error.

=== Warnings ===
The following warnings were raised by the bisect job:

 * Bisect failed to reproduce the regression with enough confidence.

===== TESTED REVISIONS =====
Revision         Mean      Std Dev  N   Good?
chromium@405961  11610168  6547915  12  good
chromium@405970  10398776  4136830  8   bad

Bisect job ran on: android_nexus7_perf_bisect
Bug ID: 633950

Test Command: src/tools/perf/run_benchmark -v --browser=android-chromium --output-format=chartjson --upload-results --also-run-disabled-tests system_health.memory_mobile
Test Metric: load_social-memory:chrome:all_processes:reported_by_chrome:gpu:effective_size_avg/load_social_facebook
Relative Change: 19.02%
Score: 0

Buildbot stdio: http://build.chromium.org/p/tryserver.chromium.perf/builders/android_nexus7_perf_bisect/builds/3143
Job details: https://chromeperf.appspot.com/buildbucket_job_status/9005355075996993968


Not what you expected? We'll investigate and get back to you!
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5886200951341056

| 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!

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/9005329347951970384

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


===== SUSPECTED CL(s) =====
Subject : Reland of -enable GPU Rasterization for content with any author defined viewport. (patchset #1 id:1 of https://codereview.chromium.org/2155193002/ )
Author  : picksi
Commit description:
  
Reason for revert:
CL falsely blamed for red layout test. Relanding it.

Original issue's description:
> Revert of -enable GPU Rasterization for content with any author defined viewport. (patchset #1 id:1 of https://codereview.chromium.org/2154193002/ )
>
> Reason for revert:
> Relanding this has potentially caused a layout test to fail (https://build.chromium.org/p/chromium.webkit/builders/WebKit%20Linux%20%28dbg%29/builds/8452). The build sheriff has asked me to revert it.
>
> Adding aelias & vmiura so they can do a more refined revert on their return from vacation.
>
> Original issue's description:
> > Reland of -enable GPU Rasterization for content with any author defined viewport. (patchset #1 id:1 of https://codereview.chromium.org/2156553002/ )
> >
> > Reason for revert:
> > Reverting change now that we have collected data from telemetry.
> >
> > Original issue's description:
> > > Revert of Re-enable GPU Rasterization for content with any author defined viewport. (patchset #2 id:20001 of https://codereview.chromium.org/2097413003/ )
> > >
> > > Reason for revert:
> > > This has caused an unexpectedly large regression in overall PSS (about 5MB, graph here: https://chromeperf.appspot.com/report?sid=0b072725c25637efb0d3a44383da1e24e42bbb3740a00505e4040af2173423b0&start_rev=402061&end_rev=402790).
> > > The owners are both OOO and this is blocking Android release. This has already been reverted in the release branch but our infrastructure cannot gather data from the branch to confirm that the revert has had the intended result.
> > >
> > > This revert will allow us to confirm that this CL was the cause of the regression. Once confirmed (or otherwise) via telemetry dashboards this revert will be re-reverted.
> > >
> > > Original issue's description:
> > > > Re-enable GPU Rasterization for content with any author defined viewport.
> > > >
> > > > BUG= 591179 
> > > >
> > > > Committed: https://crrev.com/a017b667a53b3ee5f8bc630be98c37ebf53a2339
> > > > Cr-Commit-Position: refs/heads/master@{#402702}
> > >
> > > TBR=aelias@chromium.org,chrishtr@chromium.org,vmiura@chromium.org
> > > # Not skipping CQ checks because original CL landed more than 1 days ago.
> > > BUG= 591179 
> > >
> > > Committed: https://crrev.com/10a77702aa0490dfaaa6e354151b24b738474fb4
> > > Cr-Commit-Position: refs/heads/master@{#405750}
> >
> > TBR=aelias@chromium.org,chrishtr@chromium.org,vmiura@chromium.org,primiano@chromium.org
> > # Not skipping CQ checks because original CL landed more than 1 days ago.
> > BUG= 591179 
> >
> > Committed: https://crrev.com/5f19720ded2369857bee408ab48e11e7b5d28f7b
> > Cr-Commit-Position: refs/heads/master@{#405974}
>
> TBR=aelias@chromium.org,chrishtr@chromium.org,vmiura@chromium.org,primiano@chromium.org
> # Skipping CQ checks because original CL landed less than 1 days ago.
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG= 591179 
>
> Committed: https://crrev.com/1ce44d25cbafd74f034c30ddfd4b0f3caed9978d
> Cr-Commit-Position: refs/heads/master@{#405983}

TBR=aelias@chromium.org,chrishtr@chromium.org,vmiura@chromium.org,primiano@chromium.org,alexclarke@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG= 591179 

Review-Url: https://codereview.chromium.org/2161663002
Cr-Commit-Position: refs/heads/master@{#406004}
Commit  : c67c6db688d379d0a5d2eb7cdd6853e7ce8da281
Date    : Mon Jul 18 15:57:52 2016


===== TESTED REVISIONS =====
Revision         Mean      Std Dev  N  Good?
chromium@405961  10160184  4076383  8  good
chromium@406002  10139192  5567841  8  good
chromium@406003  11371576  6266831  8  good
chromium@406004  21695052  0.0      8  bad    <--
chromium@406005  22234444  1525631  8  bad
chromium@406007  21695052  0.0      8  bad
chromium@406012  21155660  1525631  8  bad
chromium@406022  21155660  1525631  8  bad
chromium@406042  21695052  2306537  8  bad

Bisect job ran on: android_nexus7_perf_bisect
Bug ID: 633950

Test Command: src/tools/perf/run_benchmark -v --browser=android-chromium --output-format=chartjson --upload-results --also-run-disabled-tests system_health.memory_mobile
Test Metric: load_social-memory:chrome:all_processes:reported_by_chrome:gpu:effective_size_avg/load_social_facebook
Relative Change: 81.61%
Score: 99.9

Buildbot stdio: http://build.chromium.org/p/tryserver.chromium.perf/builders/android_nexus7_perf_bisect/builds/3145
Job details: https://chromeperf.appspot.com/buildbucket_job_status/9005329347951970384


Not what you expected? We'll investigate and get back to you!
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5882009465913344

| 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!