All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=625413

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg4vewtgoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg4uKEvAoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg4qKfrQkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg4renpwoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg4qKfrQoM


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

chromium-rel-mac-retina
chromium-rel-mac10

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


=== Bisection aborted ===
The bisect was aborted because The metric values for the initial "good" and "bad" revisions do not represent a clear regression.
Please contact the the team (see below) if you believe this is in error.

=== Warnings ===
The following warnings were raised by the bisect job:

 * Bisect failed to reproduce the regression with enough confidence.

===== TESTED REVISIONS =====
Revision         Mean     Std Dev   N   Good?
chromium@402526  208.509  0.724352  18  good
chromium@402529  208.073  0.526978  18  bad

Bisect job ran on: mac_retina_perf_bisect
Bug ID: 625413

Test Command: src/tools/perf/run_benchmark -v --browser=release --output-format=chartjson --upload-results --also-run-disabled-tests startup.warm.blank_page
Test Metric: open_tabs_time/open_tabs_time
Relative Change: 0.17%
Score: 0

Buildbot stdio: http://build.chromium.org/p/tryserver.chromium.perf/builders/mac_retina_perf_bisect/builds/1378
Job details: https://chromeperf.appspot.com/buildbucket_job_status/9008224695485370848


Not what you expected? We'll investigate and get back to you!
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5907282085281792

| 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!

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


===== SUSPECTED CL(s) =====
Subject : Clean up the RWHVMac to ui::Compositor interface
Author  : ccameron
Commit description:
  
Move the "ui::Compositor's relationship to RWHVMac" state machine
into BrowserCompositorViewMac.

Clarify the state by renaming states from
  Active / Suspended / Destroyed
to
  HasAttachedCompositor / HasDetachedCompositor / HasNoCompositor

Change the thumbnailer's copy requests to be intercepted by the
BrowserCompositorViewMac, and thereby have the copy request
keep the ui::Compositor attached (even if the RenderWidgetHostImpl
is hidden).

BUG= 623716 

Review-Url: https://codereview.chromium.org/2093113003
Cr-Commit-Position: refs/heads/master@{#402541}
Commit  : 9e8481c2e211439771d0634043d2addf9fe7b4ec
Date    : Tue Jun 28 21:07:43 2016


===== TESTED REVISIONS =====
Revision         Mean     Std Dev   N  Good?
chromium@402526  209.768  0.44129   5  good
chromium@402539  210.263  0.979711  5  good
chromium@402540  210.453  0.212491  5  good
chromium@402541  263.853  0.912669  5  bad    <--
chromium@402543  262.326  0.541108  5  bad
chromium@402546  262.421  1.1392    5  bad
chromium@402552  262.695  0.555007  5  bad

Bisect job ran on: mac_retina_perf_bisect
Bug ID: 625413

Test Command: src/tools/perf/run_benchmark -v --browser=release --output-format=chartjson --upload-results --also-run-disabled-tests startup.warm.blank_page
Test Metric: open_tabs_time/open_tabs_time
Relative Change: 25.23%
Score: 99.9

Buildbot stdio: http://build.chromium.org/p/tryserver.chromium.perf/builders/mac_retina_perf_bisect/builds/1379
Job details: https://chromeperf.appspot.com/buildbucket_job_status/9008187454932022080


Not what you expected? We'll investigate and get back to you!
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5286269945380864

| 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!