All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=758199

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=49914fd7d3a85f8b77a519278f1c67322c637d99118c04306e3c514518286b76


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

chromium-rel-mac11

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8970461081608252000

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

Suspected Commit
  Author : Greg Kerr
  Commit : 9705b7aaabf4c81d4e9cb13174338df9bde61cc4
  Date   : Tue Aug 15 19:42:42 2017
  Subject: Enable Finch Trial Test for MacV2Sandbox.

Bisect Details
  Configuration: mac_10_11_perf_bisect
  Benchmark    : system_health.common_desktop
  Metric       : timeToFirstContentfulPaint_avg/load_news/load_news_cnn
  Change       : 9.70% | 463.807285714 -> 508.776000001

Revision             Result                  N
chromium@494399      463.807 +- 105.597      14      good
chromium@494465      452.432 +- 44.1494      6       good
chromium@494498      454.933 +- 70.2927      9       good
chromium@494500      456.923 +- 60.3611      9       good
chromium@494501      460.514 +- 72.5339      9       good
chromium@494502      508.054 +- 74.0703      9       bad       <--
chromium@494506      509.358 +- 105.488      9       bad
chromium@494514      520.896 +- 107.542      6       bad
chromium@494530      518.763 +- 78.1414      6       bad
chromium@494660      508.776 +- 53.2035      9       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=load.news.cnn 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/8970461081608252000


For feedback, file a bug with component Speed>Bisection

This is more likely a duplicate of 756623. It might be time for me to start looking at reverting the trial config I landed if it's regressing this many different metrics.

It's not affecting customer builds, but it is making a lot of noise on the metrics graphs.