All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=783691

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=89d07913bb1394acc3d01a3a0a7861de5f0ac848020ffd607b90e0f8c93bceac


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

chromium-rel-win7-x64-dual

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8963319593371094464

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

Suspected Commit
  Author : Ulan Degenbaev
  Commit : 6bb1d47e6e82f75ead36cdab209afc5dafa8329c
  Date   : Tue Nov 07 13:11:10 2017
  Subject: [heap] Re-enable concurrent marking.

Bisect Details
  Configuration: win_x64_perf_bisect
  Benchmark    : system_health.common_desktop
  Metric       : total:500ms_window:renderer_eqt_max/load_chrome/load_chrome_blank
  Change       : 51.54% | 86.3194536591 -> 41.8330192458

Revision                           Result                     N
chromium@514531                    86.3195 +- 754.455         14      good
chromium@514597                    9.42487 +- 78.9623         9       good
chromium@514630                    58.0561 +- 491.638         9       good
chromium@514639                    5.03225 +- 41.7015         9       good
chromium@514641                    7.77774 +- 64.9653         9       good
chromium@514641,v8@67d543ec31      13.6998 +- 115.248         9       good
chromium@514641,v8@6bb1d47e6e      0.752041 +- 5.19631        9       bad       <--
chromium@514641,v8@ac0661b358      28.7254 +- 242.572         9       bad
chromium@514641,v8@80cb266c75      32.2633 +- 272.568         9       bad
chromium@514642                    0.141876 +- 0.0171712      9       bad
chromium@514643                    0.141426 +- 0.0292614      9       bad
chromium@514647                    0.13826 +- 0.0128199       9       bad
chromium@514663                    41.833 +- 305.582          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.chrome.blank 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/8963319593371094464


For feedback, file a bug with component Speed>Bisection