All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=651434

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg5bSWtwkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgpYnElgsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgpfbQ5woM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgpaXa_wgM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgpei78QsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg5YzNpwkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgpeCemggM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg5fm0sQoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgpY_aogkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg5ZKkvQoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg5ZLOswoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgpc_WvwsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg5aHBrgoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgpY6d_QsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgpan48ggM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg5daorQoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgpYGwvAkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgxZWe7QsM


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

android-nexus5
android-nexus5X
android-nexus6
android-nexus7v2
android-nexus9
android-one

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/9000182101569764528

This is most probably caused by https://chromium.googlesource.com/chromium/src/+/bdaa23ddfe686d134e5fa4f55b68910814fa8b03

If that is the case that it is WAI.

Thanks for taking a look and agreed.  Closing.

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


===== SUSPECTED CL(s) =====
Subject : Replace twitter with pinterest in v8.mobile_infinite_scroll_tbmv2.
Author  : ulan
Commit description:
  
The twitter website has small V8 heap (6MB) and doesn't do any major GC.
The pinterest website has larger V8 heap (35MB) and does 6 major GCs.

So for GC team pinterest is more interesting than twitter.

NOTE for perf sheriffs:
Regressions and improvements are expected in mobile_infinite_scroll_tbmv2.

Review-Url: https://codereview.chromium.org/2372433003
Cr-Commit-Position: refs/heads/master@{#421490}
Commit  : bdaa23ddfe686d134e5fa4f55b68910814fa8b03
Date    : Wed Sep 28 10:15:43 2016


===== TESTED REVISIONS =====
Revision         Mean     Std Dev   N  Good?
chromium@421483  2.93324  0.589578  5  good
chromium@421487  2.70364  0.250033  5  good
chromium@421489  3.09856  0.269066  5  good
chromium@421490  6.11728  0.475368  5  bad    <--

Bisect job ran on: android_one_perf_bisect
Bug ID: 651434

Test Command: src/tools/perf/run_benchmark -v --browser=android-chromium --output-format=chartjson --upload-results --also-run-disabled-tests v8.mobile_infinite_scroll_tbmv2
Test Metric: v8-gc-incremental-step_max/v8-gc-incremental-step_max
Relative Change: 108.55%
Score: 99.9

Buildbot stdio: http://build.chromium.org/p/tryserver.chromium.perf/builders/android_one_perf_bisect/builds/1661
Job details: https://chromeperf.appspot.com/buildbucket_job_status/9000182101569764528


Not what you expected? We'll investigate and get back to you!
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5801556941733888

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