All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=763913

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=f4887cfdb1477d133d41d3abf432abf0475a040e63ce116772e00dcf666c9bbe


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

android-one
chromium-rel-win7-dual

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8968743553640633264

=== Auto-CCing suspected CL author jkummerow@chromium.org ===

Hi jkummerow@chromium.org, the bisect results pointed to your CL, please take a look at the
results.


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

Suspected Commit
  Author : Jakob Kummerow
  Commit : cfcdeab0028b7f27fff277adfef602776aeeb37b
  Date   : Tue Sep 05 18:00:39 2017
  Subject: [storeic] Drop duplicate stubs for each LanguageMode

Bisect Details
  Configuration: android_one_perf_bisect
  Benchmark    : system_health.memory_mobile
  Metric       : memory:chrome:renderer_processes:reported_by_chrome:v8:heap:allocated_objects_size_avg/browse_social/browse_social_pinterest_infinite_scroll
  Change       : 0.50% | 21676587.5556 -> 21568951.1111

Revision                           Result                   N
chromium@499765                    21676588 +- 57787.5      9       good
chromium@499794                    21682502 +- 60259.1      9       good
chromium@499808                    21665288 +- 223749       14      good
chromium@499812                    21672603 +- 191888       14      good
chromium@499813                    21680325 +- 83808.9      9       good
chromium@499813,v8@fbd1d1ad25      21668760 +- 97357.8      14      good
chromium@499813,v8@62fee3b64c      21655373 +- 350073       21      good
chromium@499813,v8@cfcdeab002      21604920 +- 248401       14      bad       <--
chromium@499813,v8@1400544c37      21605604 +- 223980       14      bad
chromium@499814                    21605297 +- 222446       14      bad
chromium@499815                    21603655 +- 201865       9       bad
chromium@499822                    21607798 +- 84821.6      9       bad
chromium@499878                    21568951 +- 328657       9       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=browse.social.pinterest.infinite.scroll 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/8968743553640633264


For feedback, file a bug with component Speed>Bisection

 Issue 763920  has been merged into this issue.

Go home, bisect bot, you're drunk. 21.60MB is less than 21.65MB, so this is an improvement. I'm not gonna revert the CL that caused that improvement.