All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=759069

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=dc22fc0a08c251e06619ce260bd49357f16b819e639d476434d0cba1e1de45b3


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

chromium-rel-win7-dual

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8970272389317860464

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

Suspected Commit
  Author : Nico Weber
  Commit : 7cd2f6bd73c6a9c6200704e995b18ebb3168ead6
  Date   : Sat Aug 19 04:23:54 2017
  Subject: win: Turn off clang-by-default again for now.

Bisect Details
  Configuration: win_perf_bisect
  Benchmark    : smoothness.tough_filters_cases
  Metric       : frame_times/Filter Terrain SVG
  Change       : 4.50% | 35.7924631024 -> 37.4041199743

Revision             Result                   N
chromium@495791      35.7925 +- 0.614674      6      good
chromium@495800      35.7735 +- 0.642958      6      good
chromium@495801      35.9554 +- 1.1936        6      good
chromium@495802      37.1969 +- 0.829663      6      bad       <--
chromium@495804      37.4143 +- 0.982005      6      bad
chromium@495808      37.4041 +- 0.697102      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 --story-filter=Filter.Terrain.SVG smoothness.tough_filters_cases

More information on addressing performance regressions:
  http://g.co/ChromePerformanceRegressions

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8970272389317860464


For feedback, file a bug with component Speed>Bisection