All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=657187

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgpZqhwgkM


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

linux-release

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8998424324615354016

===== BISECT JOB RESULTS =====
Status: failed


===== TESTED REVISIONS =====
Revision         Mean     Std Dev  N  Good?
chromium@419896  505.85   28.1518  5  good
chromium@421741  624.162  25.2639  5  bad

Bisect job ran on: linux_perf_bisect
Bug ID: 657187

Test Command: src/tools/perf/run_benchmark -v --browser=release --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests page_cycler_v2.typical_25
Test Metric: timeToFirstMeaningfulPaint_avg/pcv1-warm/http___www.theonion.com
Relative Change: 23.39%
Score: 0

Buildbot stdio: http://build.chromium.org/p/tryserver.chromium.perf/builders/linux_perf_bisect/builds/6781
Job details: https://chromeperf.appspot.com/buildbucket_job_status/8998424324615354016


Not what you expected? We'll investigate and get back to you!
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5220399430762496

| O O | Visit http://www.chromium.org/developers/speed-infra/perf-bug-faq
|  X  | for more information addressing perf regression bugs. For feedback,
| / \ | file a bug with component Tests>AutoBisect.  Thank you!

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8982651712527728480

=== BISECT JOB RESULTS ===
Bisect was unable to run to completion

Please try rerunning the bisect.


If failures persist contact the team (see below) and report the error.


Bisect Details
  Configuration: linux_perf_bisect
  Benchmark    : page_cycler_v2.typical_25
  Metric       : timeToFirstMeaningfulPaint_avg/pcv1-warm/http___www.theonion.com

Revision             Result                  N
chromium@419896      501.34 +- 138.238       14      good
chromium@421741      619.267 +- 92.4592      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 page_cycler_v2.typical_25

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8982651712527728480

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5220399430762496


| O O | Visit http://www.chromium.org/developers/speed-infra/perf-bug-faq
|  X  | for more information addressing perf regression bugs. For feedback,
| / \ | file a bug with component Speed>Bisection.  Thank you!

This alert was found before M-60 branched. Closing as WontFix as this is believed to either be invalid or non-reproducible.