All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=755289

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=558b5a0b23593e07457759886680120a79c83344d76c9d057f80a1d3f3ce9276


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

android-nexus5X
android-nexus6
android-nexus7v2
android-one
android-webview-nexus6

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8971253658435919920

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

Suspected Commit
  Author : Scott Haseley
  Commit : c3f876b18c07c50b360b93fb91ec67549b58deb8
  Date   : Thu Aug 10 00:40:36 2017
  Subject: Use swap time for all first paint times in TBM, UMA, UKM & web perf API

Bisect Details
  Configuration: android_nexus7_perf_bisect
  Benchmark    : system_health.common_mobile
  Metric       : timeToFirstContentfulPaint_avg/load_media/load_media_imgur
  Change       : 161.77% | 418.680833333 -> 1095.9625

Revision             Result                  N
chromium@493119      418.681 +- 63.9206      6      good
chromium@493169      402.695 +- 82.6652      6      good
chromium@493182      409.047 +- 37.2804      6      good
chromium@493188      403.03 +- 64.7609       6      good
chromium@493190      403.631 +- 68.5576      6      good
chromium@493191      950.414 +- 566.442      6      bad       <--
chromium@493194      1247.19 +- 80.7632      6      bad
chromium@493218      1012.05 +- 665.993      6      bad
chromium@493317      1095.96 +- 682.795      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=load.media.imgur system_health.common_mobile

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8971253658435919920


For feedback, file a bug with component Speed>Bisection