All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=661931

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgo-3b-goM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgo_qXhgoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgo__trAoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgw6HviAgM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgo4vVvwoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg45qdtwoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgo6bl9wkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgo77x-ggM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgo9jdugsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg4_G2pwkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgo7Sp9AsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg49iZsQoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg49jOoAoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgw4-6_wsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgw-ax5gkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgw664_AsM


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

chromium-rel-win7-gpu-ati
chromium-rel-win7-gpu-intel
chromium-rel-win7-gpu-nvidia
chromium-rel-win8-dual

Bisect wasn't started automatically, kicking off manually.

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8996912511103959744

Bisect failed: http://build.chromium.org/p/tryserver.chromium.perf/builders/winx64ati_perf_bisect/builds/1639
Failure reason: the build has failed.
Additional errors:
The metric was not found in the test output.
Either of the initial "good" or "bad" revisions failed to be tested or built.

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8996638804791769504

===== 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@429240  722.625  236.033  18  good
chromium@429272  771.907  289.858  18  bad

Bisect job ran on: android_nexus6_perf_bisect
Bug ID: 661931

Test Command: src/tools/perf/run_benchmark -v --browser=android-chromium --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=http...udn.com.NEWS.mainpage.shtml page_cycler_v2.intl_ja_zh
Test Metric: timeToFirstContentfulPaint_avg/pcv1-warm/http___udn.com_NEWS_mainpage.shtml
Relative Change: 21.87%
Score: 0

Buildbot stdio: http://build.chromium.org/p/tryserver.chromium.perf/builders/android_nexus6_perf_bisect/builds/2729
Job details: https://chromeperf.appspot.com/buildbucket_job_status/8996638804791769504


Not what you expected? We'll investigate and get back to you!
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5805867172102144

| 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!

These regressions happened before M56 branch. M56 is now in stable. These regressions made it to the stable channel. Marking wontfix.