All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=763278

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=c1732bc81ca8da57c1d61a7e1542b19b237fb1562681ff55018b1b7b07381b26


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

android-one

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8969038175692106128

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

Suspected Commit
  Author : Marja Hölttä
  Commit : 36d703778ccd0d2777e0d4b69ed6e65e39a9f521
  Date   : Mon Sep 04 16:05:39 2017
  Subject: [parser] Tentatively enable FLAG_preparser_scope_analysis.

Bisect Details
  Configuration: android_one_perf_bisect
  Benchmark    : v8.runtimestats.browsing_mobile
  Metric       : v8-gc-full-mark-compactor_sum/browse_media/browse_media_imgur
  Change       : 54.06% | 88.6222 -> 136.531833333

Revision                           Result                  N
chromium@499528                    88.6222 +- 3.98549      5      good
chromium@499535                    88.5078 +- 4.42656      6      good
chromium@499537                    89.2207 +- 5.05627      6      good
chromium@499538                    88.7232 +- 3.55624      6      good
chromium@499538,v8@1c1457fa70      88.3433 +- 4.58065      6      good
chromium@499538,v8@36d703778c      137.872 +- 20.7382      6      bad       <--
chromium@499538,v8@7abdadca0e      138.161 +- 15.7946      6      bad
chromium@499539                    133.204 +- 7.16459      6      bad
chromium@499542                    133.049 +- 8.65219      8      bad
chromium@499555                    136.532 +- 13.4163      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.media.imgur 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/8969038175692106128


For feedback, file a bug with component Speed>Bisection