All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=784837

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=7a409b1697f7b184f4ce0b2fa68b111d4a73a14f9c9d8e2bb27f9d767b4ad717


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

android-nexus5
android-nexus5X
android-nexus6
android-nexus7v2
android-webview-nexus5X
android-webview-nexus6

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8962944893404792848

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

Suspected Commit
  Author : Nate Chapin
  Commit : 1aec1a92fb786cae0a24ff2b22d4858d4486252e
  Date   : Mon Nov 06 23:47:59 2017
  Subject: Make script cache hits async

Bisect Details
  Configuration: android_webview_arm64_aosp_perf_bisect
  Benchmark    : v8.runtimestats.browsing_mobile
  Metric       : Parse-Background:duration_avg/browse_social/browse_social_twitter
  Change       : 362.31% | 6.17422222222 -> 27.1494444444

Revision             Result                  N
chromium@514278      6.17422 +- 34.6527      9       good
chromium@514298      2.96544 +- 25.1626      9       good
chromium@514299      25.077 +- 4.45361       6       bad       <--
chromium@514300      26.3193 +- 3.98027      6       bad
chromium@514301      31.322 +- 14.152        6       bad
chromium@514303      28.4135 +- 12.3487      6       bad
chromium@514308      27.7477 +- 6.93889      6       bad
chromium@514317      32.1067 +- 14.4047      6       bad
chromium@514355      28.5159 +- 18.7827      14      bad
chromium@514432      27.1494 +- 10.8199      9       bad

To Run This Test
  src/tools/perf/run_benchmark -v --browser=android-webview --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=browse.social.twitter v8.runtimestats.browsing_mobile

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8962944893404792848


For feedback, file a bug with component Speed>Bisection