All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=771246

(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/8966733446568364448

=== 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       : 8.74% | 4074468.0 -> 4430751.33333

Revision                           Result                  N
chromium@505160                    4074468 +- 3210.98      6      good
chromium@505186                    4079472 +- 16697.7      6      good
chromium@505199                    4076667 +- 13733.2      6      good
chromium@505206                    4075183 +- 3651.15      6      good
chromium@505209                    4076409 +- 16594.4      6      good
chromium@505210                    4081793 +- 19616.5      6      good
chromium@505210,v8@4ba6f15ece      4074149 +- 2236.91      6      good
chromium@505210,v8@40856948a6      4430772 +- 127.499      6      bad       <--
chromium@505210,v8@193dcf7693      4430773 +- 68.6828      6      bad
chromium@505210,v8@e1cdda2512      4430745 +- 99.0219      6      bad
chromium@505211                    4430757 +- 96.8986      6      bad
chromium@505212                    4430787 +- 84.9313      6      bad
chromium@505264                    4430751 +- 107.839      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/8966733446568364448


For feedback, file a bug with component Speed>Bisection