All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=661480

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgg_uv8AoM


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

chromium-rel-win7-gpu-ati

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8997113486225039232

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


===== SUSPECTED CL(s) =====
Subject : Initialize buffers before allowing access to them.
Author  : zmo
Commit description:
  
Also, refactor buffer access validation a bit to reduce
duplicated codes.

(Note that this is still part 1 of the work. We have more
buffer access paths that we need to put in buffer access
validation.)

BUG= 654201 
TEST=gpu_unittests, webgl_conformance
R=piman@chromium.org
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:linux_optional_gpu_tests_rel;master.tryserver.chromium.mac:mac_optional_gpu_tests_rel;master.tryserver.chromium.win:win_optional_gpu_tests_rel

Review-Url: https://codereview.chromium.org/2435803004
Cr-Commit-Position: refs/heads/master@{#427200}
Commit  : 26c35c2e81f97a5b291ebd4d639fc3f1a4cc50e8
Date    : Tue Oct 25 01:03:34 2016


===== TESTED REVISIONS =====
Revision         Mean     Std Dev    N  Good?
chromium@427184  18.7531  0.0138578  5  good
chromium@427192  18.7488  0.0246071  5  good
chromium@427196  18.7515  0.0410544  5  good
chromium@427198  18.7435  0.0239493  5  good
chromium@427199  18.7392  0.0140027  5  good
chromium@427200  18.9062  0.0361704  5  bad    <--
chromium@427216  18.9231  0.0672842  5  bad
chromium@427247  18.9168  0.0467651  5  bad

Bisect job ran on: winx64ati_perf_bisect
Bug ID: 661480

Test Command: src/tools/perf/run_benchmark -v --browser=release_x64 --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests smoothness.tough_animation_cases
Test Metric: frame_times/frame_times
Relative Change: 0.87%
Score: 99.9

Buildbot stdio: http://build.chromium.org/p/tryserver.chromium.perf/builders/winx64ati_perf_bisect/builds/1636
Job details: https://chromeperf.appspot.com/buildbucket_job_status/8997113486225039232


Not what you expected? We'll investigate and get back to you!
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5857074892767232

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