All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=771245

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=e2d74554fb114e040af2e212f1e5f4006e88ff52727c6d12afdcc2c73c7c81b7


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

android-nexus5X
android-webview-nexus5X
android-webview-nexus6

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8966733450512972768

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

Suspected Commit
  Author : Marja Hölttä
  Commit : 40856948a64e2b76bc121a8841a763836dbf1b37
  Date   : Thu Sep 28 12:41:56 2017
  Subject: [parser] Skipping inner funcs: Turn off FLAG_preparser_scope_analysis.

Bisect Details
  Configuration: android_nexus5X_perf_bisect
  Benchmark    : system_health.memory_mobile
  Metric       : memory:chrome:all_processes:reported_by_chrome:v8:effective_size_avg/load_media/load_media_facebook_photos
  Change       : 8.67% | 4077142.0 -> 4430770.66667

Revision                           Result                  N
chromium@505160                    4077142 +- 13139.1      6      good
chromium@505186                    4077771 +- 15373.4      6      good
chromium@505199                    4079694 +- 17803.2      6      good
chromium@505206                    4074550 +- 3118.08      6      good
chromium@505209                    4077591 +- 15628.6      6      good
chromium@505210                    4074856 +- 3866.69      6      good
chromium@505210,v8@4ba6f15ece      4073453 +- 632.624      6      good
chromium@505210,v8@40856948a6      4430753 +- 61.5576      6      bad       <--
chromium@505210,v8@193dcf7693      4430499 +- 1381.9       6      bad
chromium@505210,v8@e1cdda2512      4430783 +- 87.529       6      bad
chromium@505211                    4430773 +- 76.0351      6      bad
chromium@505212                    4430728 +- 90.1554      6      bad
chromium@505264                    4430771 +- 166.437      6      bad

Please refer to the following doc on diagnosing memory regressions:
  https://chromium.googlesource.com/chromium/src/+/master/docs/memory-infra/memory_benchmarks.md

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.facebook.photos system_health.memory_mobile

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8966733450512972768


For feedback, file a bug with component Speed>Bisection