All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=718048

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgsrWpuwoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg0vPQ4QsM


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

android-nexus5
android-nexus7v2

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8980603362392317008

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

Suspected Commit
  Author : nednguyen
  Commit : e80a730b1b1b43ec5fa205dd99e5f00693173f4c
  Date   : Fri Apr 28 09:26:12 2017
  Subject: [Telemetry] Switch Android platform to no longer uses test ca

Bisect Details
  Configuration: android_nexus5_perf_bisect
  Benchmark    : system_health.common_mobile
  Metric       : timeToFirstContentfulPaint_avg/browse_chrome/browse_chrome_newtab
  Change       : 24.03% | 398.4453 -> 494.1765

Revision                                 Result                  N
chromium@467921                          398.445 +- 40.779       6      good
chromium@467938                          400.535 +- 24.1063      6      good
chromium@467946                          407.086 +- 30.6475      6      good
chromium@467950                          401.572 +- 19.0103      6      good
chromium@467952                          405.672 +- 23.0704      6      good
chromium@467953                          404.133 +- 22.0351      6      good
chromium@467953,catapult@e80a730b1b      503.178 +- 12.4642      6      bad       <--
chromium@467954                          494.176 +- 46.5601      6      bad

To Run This Test
  src/tools/perf/run_benchmark -v --browser=android-chromium --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=browse.chrome.newtab system_health.common_mobile

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8980603362392317008

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=6193972831059968


| 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!