All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=632636

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICghtrUqQoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgusXEiQsM


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

chromium-rel-mac11

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/9005813589135676640

=== Auto-CCing suspected CL author erikchen@chromium.org ===

Hi erikchen@chromium.org, the bisect results pointed to your CL below as possibly
causing a regression. Please have a look at this info and see whether
your CL be related.


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


===== SUSPECTED CL(s) =====
Subject : Enable RenderPassDrawQuad promotion to CALayer.
Author  : erikchen
Commit description:
  
This CL enables the Core Animation compositor's implementation of CSS filter
effects.

BUG= 581526 
CQ_INCLUDE_TRYBOTS=master.tryserver.blink:linux_precise_blink_rel

Review-Url: https://codereview.chromium.org/2183333002
Cr-Commit-Position: refs/heads/master@{#408216}
Commit  : c2e44129f9712162be14a1a054225e29d89b1296
Date    : Wed Jul 27 19:46:35 2016


===== TESTED REVISIONS =====
Revision         Mean     Std Dev   N  Good?
chromium@408203  18.369   0.305033  5  good
chromium@408212  18.2927  0.115184  5  good
chromium@408214  18.4033  0.13506   5  good
chromium@408215  18.4411  0.178942  5  good
chromium@408216  59.742   0.858991  5  bad    <--
chromium@408220  59.0871  0.257992  5  bad
chromium@408236  59.8205  0.270652  5  bad

Bisect job ran on: mac_10_11_perf_bisect
Bug ID: 632636

Test Command: src/tools/perf/run_benchmark -v --browser=release --output-format=chartjson --upload-results --also-run-disabled-tests smoothness.tough_filters_cases
Test Metric: frame_times/http___rawgit.com_WebKit_webkit_master_PerformanceTests_Animometer_developer.html?test-interval_20_display_minimal_controller_fixed_frame-rate_50_kalman-process-error_1_kalman-measurement-error_4_time-measurement_performance_suite-name_Animometer_test-name_Focus_complexity_100
Relative Change: 225.66%
Score: 99.9

Buildbot stdio: http://build.chromium.org/p/tryserver.chromium.perf/builders/mac_10_11_perf_bisect/builds/773
Job details: https://chromeperf.appspot.com/buildbucket_job_status/9005813589135676640


Not what you expected? We'll investigate and get back to you!
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5880616487223296

| 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!

Looks like a pretty big regression for frame times, was that expected?

No, investigating.

I've reverted the CL for correctness issues:

https://bugs.chromium.org/p/chromium/issues/detail?id=632613#c5