All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=629110

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgit-JqgoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgiueMrAkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgyofy6woM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgyvfeswoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg8o_a8QkM


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

android-galaxy-s5
android-nexus5X
android-nexus7v2

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/9006785213883518512

===== BISECT JOB RESULTS =====
Status: completed


=== Bisection aborted ===
The bisect was aborted because The metric values for the initial "good" and "bad" revisions do not represent a clear regression.
Please contact the the team (see below) if you believe this is in error.

=== Warnings ===
The following warnings were raised by the bisect job:

 * Bisect failed to reproduce the regression with enough confidence.

===== TESTED REVISIONS =====
Revision         Mean     Std Dev  N   Good?
chromium@405743  4268032  32440.5  12  good
chromium@405746  4271616  41392.9  8   bad

Bisect job ran on: android_s5_perf_bisect
Bug ID: 629110

Test Command: src/tools/perf/run_benchmark -v --browser=android-chromium --output-format=chartjson --upload-results --also-run-disabled-tests system_health.memory_mobile
Test Metric: load_social-memory:chrome:all_processes:reported_by_os:system_memory:ashmem:private_dirty_size_avg/load_social_twitter
Relative Change: 0.23%
Score: 0

Buildbot stdio: http://build.chromium.org/p/tryserver.chromium.perf/builders/android_s5_perf_bisect/builds/809
Job details: https://chromeperf.appspot.com/buildbucket_job_status/9006785213883518512


Not what you expected? We'll investigate and get back to you!
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5782426765230080

| 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 Tests>AutoBisect.  Thank you!

Looks like more of this: bug 629178