All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=724056

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg6o-WuwsM


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

android-nexus6

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8979256000776501616

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

Hi binji@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 : binji
  Commit : ac2ac7b771c7d5838b4e2e35523bf38d215ac926
  Date   : Sat May 13 03:05:46 2017
  Subject: Enable SharedArrayBuffer feature by default. (Reland)

Bisect Details
  Configuration: android_nexus6_perf_bisect
  Benchmark    : system_health.memory_mobile
  Metric       : memory:chrome:all_processes:reported_by_chrome:v8:effective_size_avg/load_news/load_news_qq
  Change       : 6.44% | 2962994.85714 -> 3153572.44444

Revision             Result                  N
chromium@471541      2962995 +- 41441.9      14      good
chromium@471544      2961984 +- 29519.4      6       good
chromium@471545      3178640 +- 337574       9       bad       <--
chromium@471546      3123407 +- 500246       14      bad
chromium@471551      3177480 +- 343865       9       bad
chromium@471561      3192791 +- 251469       6       bad
chromium@471581      3153572 +- 364635       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=load.news.qq system_health.memory_mobile

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8979256000776501616

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5247314609831936


| O O | Visit http://www.chromium.org/developers/speed-infra/perf-bug-faq
|  X  | for more information addressing perf regression bugs. For feedback,
| / \ | file a bug with component Speed>Bisection.  Thank you!

Issue 724055 has been merged into this issue.

See https://bugs.chromium.org/p/chromium/issues/detail?id=724053#c9. This fix seems to have improved the graph here too.