All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=783794

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=27327b74865f5513f5f881b8051163b41a35f79630323d40aaeb54f335caee88


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

chromium-rel-win10
chromium-rel-win7-x64-dual

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8963299161697845008

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

Suspected Commit
  Author : Kouhei Ueno
  Commit : e1cfaee91ad08478fbd956fcd73d570032702397
  Date   : Thu Nov 09 08:23:01 2017
  Subject: Revert "Make script cache hits async"

Bisect Details
  Configuration: winx64_10_perf_bisect
  Benchmark    : system_health.common_desktop
  Metric       : total:500ms_window:renderer_eqt_max/load_media/load_media_dailymotion
  Change       : 38.19% | 282.830144607 -> 174.806481951

Revision             Result                  N
chromium@515101      282.83 +- 3139.3        14      good
chromium@515115      91.6294 +- 619.326      9       good
chromium@515119      87.2352 +- 573.89       9       good
chromium@515120      96.4211 +- 660.914      9       good
chromium@515121      117.918 +- 582.058      9       bad       <--
chromium@515122      164.641 +- 965.89       9       bad
chromium@515129      174.806 +- 882.293      14      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=load.media.dailymotion system_health.common_desktop

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8963299161697845008


For feedback, file a bug with component Speed>Bisection