All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=609973

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg1Ne_rQoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg1IfluAoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgtIr-sQkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgtMqJogoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgtOyIswoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg1N-jswkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg1IWuoAoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg1IWyvgoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgtKzDvQoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg1P3xuQsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg1PmovAkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg1O-PtgoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg1KryrAoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg1KqApAoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgtPLdpwoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgtPKpugoM


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

chromium-rel-mac-hdd
chromium-rel-mac-retina
chromium-rel-mac10
chromium-rel-mac11

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


===== SUSPECTED CL(s) =====
Subject : Include system time in Mac ThreadTicks.
Author  : lpy
Commit description:
  
Currently Mac ComputeThreadTicks doesn't only use user time, this patch includes
system time in order to get more accurate CPU time.

BUG= 608936 

Review-Url: https://codereview.chromium.org/1946303003
Cr-Commit-Position: refs/heads/master@{#391717}
Commit  : 89c5c64c72a737a52426df0f29146fb530b9129c
Date    : Thu May 05 00:39:36 2016


===== TESTED REVISIONS =====
Revision         Mean     Std Dev   N  Good?
chromium@391690  20.613   0.165899  5  good
chromium@391704  21.1623  0.322858  5  good
chromium@391711  21.2407  0.392721  5  good
chromium@391715  21.259   0.581821  5  good
chromium@391716  21.3585  0.169784  5  good
chromium@391717  34.7082  0.815434  5  bad    <--
chromium@391718  34.0831  0.396786  5  bad

Bisect job ran on: mac_10_11_perf_bisect
Bug ID: 609973

Test Command: src/tools/perf/run_benchmark -v --browser=release --output-format=chartjson --upload-results --also-run-disabled-tests blob_storage.blob_storage
Test Metric: Action_ReadBlobs-blob-reads/Action_ReadBlobs-blob-reads
Relative Change: 65.35%
Score: 99.9

Buildbot stdio: http://build.chromium.org/p/tryserver.chromium.perf/builders/mac_10_11_perf_bisect/builds/625
Job details: https://chromeperf.appspot.com/buildbucket_job_status/9013380066597465584


Not what you expected? We'll investigate and get back to you!
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5816473327501312

| 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!