All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=760162

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=ecfe09d376942bb49f0cf3faa8e822e585e0b9170e496a5f3d6ab15c7fb70456


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

chromium-rel-win7-gpu-intel

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8969912350127601104

=== 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: winx64intel_perf_bisect
  Benchmark    : rasterize_and_record_micro.top_25
  Metric       : record_time/Wikipedia (1 tab)
  Change       : 8.51% | 0.125333333333 -> 0.136

Revision             Result                       N
chromium@495793      0.125333 +- 0.0011547        6      good
chromium@495801      0.125333 +- 0.0011547        6      good
chromium@495802      0.136833 +- 0.000912871      6      bad       <--
chromium@495803      0.136333 +- 0.0011547        6      bad
chromium@495805      0.137333 +- 0.0011547        6      bad
chromium@495808      0.136 +- 0.0                 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 --story-filter=Wikipedia..1.tab. rasterize_and_record_micro.top_25

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8969912350127601104


For feedback, file a bug with component Speed>Bisection