All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=629325

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgioeO5QkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgqvjEpAoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgiu-p9goM


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

chromium-rel-mac-retina

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/9006756423013715248

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


===== SUSPECTED CL(s) =====
Subject : Disable GPU raster for OSX 10.9
Author  : ericrk
Commit description:
  
 crbug.com/611310  contains a report of a rendering issue on 10.9. As I
haven't been able to repro locally, I was hoping to get more data on
this issue during beta/canary, but no additional reports have come in.
In order to allow us to launch to stable with lower risk, this CL
disables GPU raster on 10.9, which only accounts for ~7% of mac users.

We may re-enable this for M53 Beta M54 Canary in order to track down the
issue in question, and hopefully launch to 10.9 in M53.

BUG= 611310 
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/2151393002
Cr-Commit-Position: refs/heads/master@{#405902}
Commit  : 51630e3efbcde407cdc7c4e0f35cba88a2090601
Date    : Fri Jul 15 23:44:23 2016


===== TESTED REVISIONS =====
Revision         Mean      Std Dev     N  Good?
chromium@405895  0.7383    0.0066778   5  good
chromium@405899  0.730968  0.0156692   5  good
chromium@405901  0.734055  0.00523484  5  good
chromium@405902  2.56443   0.035418    5  bad    <--
chromium@405903  2.57622   0.00909031  5  bad
chromium@405910  2.57005   0.0336467   5  bad

Bisect job ran on: mac_retina_perf_bisect
Bug ID: 629325

Test Command: src/tools/perf/run_benchmark -v --browser=release --output-format=chartjson --upload-results --also-run-disabled-tests thread_times.tough_scrolling_cases
Test Metric: thread_raster_cpu_time_per_frame/thread_raster_cpu_time_per_frame
Relative Change: 248.10%
Score: 99.9

Buildbot stdio: http://build.chromium.org/p/tryserver.chromium.perf/builders/mac_retina_perf_bisect/builds/1427
Job details: https://chromeperf.appspot.com/buildbucket_job_status/9006756423013715248


Not what you expected? We'll investigate and get back to you!
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5899001841319936

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