All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=729242

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDghs6v9QgM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDghqO81woM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg-um-8AgM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgxu38tAoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDghofH5wsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgxuDv8goM


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

chromium-rel-win10
chromium-rel-win7-dual
chromium-rel-win7-gpu-ati
chromium-rel-win7-x64-dual
chromium-rel-win8-dual

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8977855457653792416

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

Hi kjellander@chromium.org, the bisect results pointed to your CL, please take a look at the
results.


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

Suspected Commit
  Author : kjellander
  Commit : 99ce70bc4ae8d3a4c7431f875af32d978fb97965
  Date   : Tue May 30 07:01:22 2017
  Subject: Revert of win: Set is_clang=true by default. (patchset #6 id:100001 of https://codereview.chromium.org/2870543003/ )

Bisect Details
  Configuration: winx64ati_perf_bisect
  Benchmark    : blink_perf.bindings
  Metric       : typed-array-set-from-typed/typed-array-set-from-typed
  Change       : 11.03% | 852.349725319 -> 758.350549498

Revision             Result                  N
chromium@475417      852.35 +- 8.64146       6      good
chromium@475432      854.939 +- 4.20595      6      good
chromium@475440      853.265 +- 2.98306      6      good
chromium@475444      854.229 +- 4.69568      6      good
chromium@475446      853.619 +- 7.67131      6      good
chromium@475447      757.698 +- 3.81858      6      bad       <--
chromium@475477      758.351 +- 4.70912      6      bad

To Run This Test
  src/tools/perf/run_benchmark -v --browser=release_x64 --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests blink_perf.bindings

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8977855457653792416

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5661769114058752


| 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!

Expected regression due to changing compiler.