All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=669579

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgh5jMsAkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgh9qAogoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgu9vzuQsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgh_WitgoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgh7zvpgkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgh7i-oAkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg--PZvQoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgh_WitgkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgh_zJoQoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg-8nw8ggM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg-4fdtgoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgh_jbswoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgh960qQoM


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

chromium-rel-mac-retina

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8994635895869689472

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


===== SUSPECTED CL(s) =====
Subject : [Mac] Remove NSScreen renderer sandbox warmup.
Author  : rsesek
Commit description:
  
This should no longer be necessary now that the scrollbar animations are
no longer driven by NSAnimation (https://codereview.chromium.org/529103002/).

BUG=306348, 533537 
R=avi@chromium.org

Review-Url: https://codereview.chromium.org/2509273005
Cr-Commit-Position: refs/heads/master@{#434775}
Commit  : 9cf04c9e74a140d91cea9602298cace5b6277a6f
Date    : Mon Nov 28 23:37:44 2016


===== TESTED REVISIONS =====
Revision         Mean     Std Dev  N  Good?
chromium@434720  88.4543  42.3489  7  good
chromium@434770  87.7708  33.5759  8  good
chromium@434774  89.5607  56.6435  8  good
chromium@434775  176.249  38.3097  5  bad    <--
chromium@434776  179.063  43.2642  5  bad
chromium@434777  180.3    34.4881  5  bad
chromium@434783  178.844  38.1017  5  bad
chromium@434795  175.923  41.1303  5  bad
chromium@434819  170.319  14.7465  5  bad

Bisect job ran on: mac_retina_perf_bisect
Bug ID: 669579

Test Command: src/tools/perf/run_benchmark -v --browser=release --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=http...thaimisc.com. page_cycler_v2.intl_ko_th_vi
Test Metric: timeToFirstContentfulPaint_avg/pcv1-cold/http___thaimisc.com_
Relative Change: 92.55%

Buildbot stdio: http://build.chromium.org/p/tryserver.chromium.perf/builders/mac_retina_perf_bisect/builds/1843
Job details: https://chromeperf.appspot.com/buildbucket_job_status/8994635895869689472


Not what you expected? We'll investigate and get back to you!
  https://chromeperf.appspot.com/bad_bisect?try_job_id=6138607230779392

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|  X  | for more information addressing perf regression bugs. For feedback,
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