All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=700899

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgtNrQ9wsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDglNL1wAsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgtNrQ9woM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDglJ_lywgM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg1Pb8iwsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg1NSrvgsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg1PPutQoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDglLnW2wsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgtKSvqAoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg1P70tgoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDglKepgwgM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg1Mzq7QkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgtPz5tAoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg1Meo5AkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg1LaPwwkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg1J6E8woM


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

android-nexus5
android-nexus6
android-nexus7v2
android-webview-nexus6
chromium-rel-mac-retina
chromium-rel-mac11
chromium-rel-mac11-pro
chromium-rel-mac12
chromium-rel-win10
chromium-rel-win7-dual
chromium-rel-win7-gpu-ati
chromium-rel-win7-gpu-intel
chromium-rel-win7-gpu-nvidia
chromium-rel-win7-x64-dual
chromium-rel-win8-dual
linux-release

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8985230377477983664

=== BISECT JOB RESULTS ===
Perf regression found with culprit

Suspected Commit
  Author : Michael Hablich
  Commit : 7c3936c67a6361371d9a00d83e2c03ecc603ce76
  Date   : Thu Mar 09 08:05:42 2017
  Subject: Version 5.9.34.1 (Turn on I+TF)

Bisect Details
  Configuration: mac_10_12_perf_bisect
  Benchmark    : blink_perf.css
  Metric       : SelectorCountScaling/SelectorCountScaling
  Change       : 20.95% | 169.258528076 -> 133.801763299

Revision                           Result                  N
chromium@455706                    169.259 +- 4.44751      6      good
chromium@455715                    167.302 +- 6.46354      6      good
chromium@455719                    167.434 +- 5.58839      6      good
chromium@455719,v8@7c3936c67a      133.09 +- 3.40152       6      bad       <--
chromium@455719,v8@fbffc377e3      132.602 +- 1.16944      6      bad
chromium@455720                    131.622 +- 2.51733      6      bad
chromium@455721                    133.607 +- 1.99057      6      bad
chromium@455723                    131.315 +- 1.68751      6      bad
chromium@455739                    133.86 +- 1.82864       6      bad
chromium@455772                    133.802 +- 3.57317      6      bad

To Run This Test
  src/tools/perf/run_benchmark -v --browser=release --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests blink_perf.css

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8985230377477983664

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=6432297215066112


| 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 Speed>Bisection.  Thank you!