All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=776744

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=7f56eabcaf81a6de7a1e11c52a9d4a0aba8a3c755abf9f6c545279392184c2b4


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

chromium-rel-mac11

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8965206583061438688

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

Suspected Commit
  Author : Greg Kerr
  Commit : fcd7b94faa40dfc3e4e4be26f4e854dd14ef650c
  Date   : Thu Oct 12 22:48:50 2017
  Subject: Enable Finch Trial Test for MacV2Sandbox.

Bisect Details
  Configuration: mac_10_11_perf_bisect
  Benchmark    : loading.desktop
  Metric       : timeToFirstContentfulPaint_avg/cold/ja.wikipedia

Revision             Result                  N
chromium@508397      810.909 +- 343.432      14      good
chromium@508469      783.692 +- 192.517      14      good
chromium@508505      790.973 +- 232.878      9       good
chromium@508510      775.374 +- 131.1        9       good
chromium@508512      781.681 +- 163.295      14      good
chromium@508513      843.607 +- 219.881      6       bad       <--
chromium@508514      823.317 +- 119.899      9       bad
chromium@508523      835.012 +- 160.651      9       bad
chromium@508541      835.92 +- 211.184       14      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=ja.wikipedia loading.desktop

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8965206583061438688


For feedback, file a bug with component Speed>Bisection

This should be resolved when I land the perf improvements CL.