All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=628263

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg8sPAogsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgiqnOhggM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg8ran5QkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgirXzlggM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgivqOqgoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgipObkggM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg8pz-_QkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg8suYtgoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgitmvqQoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg8pq6vwsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgisy3tgsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgis27oAkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgiuTssAoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg8s3IpQsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgitKIrAoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgiqTOpgkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgivyi4AsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgitPZ9wkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgiv6jtAoM


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

android-nexus9

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/9007146146785533008

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/9004252497160699280

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

Hi ulan@chromium.org, the bisect results pointed to your CL below as possibly
causing a regression. Please have a look at this info and see whether
your CL be related.


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


===== SUSPECTED CL(s) =====
Subject : Add benchmark that imitates news reading.
Author  : ulan
Commit description:
  
Each story in the benchmark does the following:
1. Load the main page.
2. Open and scroll the first news item.
3. Go back to the main page and scroll it.
4. Open and scroll the second news item.
5. Go back to the main page and scroll it.
6. etc.

This workflow is interesting because it is close to real world
and generates a lot of garbage by creating and discarding pages.

A couple of websites crash with OOM on svelte device, so by
tracking and optimizing for this benchmark we can improve
user experience on low-memory devices.

*** NOTE TO SHERRIF ***
Regressions are expected in system_health.memory_mobile and
system_health.memory_desktop for the following stories:
- load:news:cnn
- load:social:facebook
- load:news:qq
- load:news:reddit
- load:social:twitter

If there are failing tests in form of benchmarks.system_health_smoke_test.SystemHealthBenchmarkSmokeTest.*
please do not revert this CL but instead disabling failing
test by adding them into the _DISABLE_TESTS list in
tools/perf/benchmarks/system_health_smoke_test.py

BUG=589726
CQ_INCLUDE_TRYBOTS=tryserver.chromium.perf:android_s5_perf_cq;tryserver.chromium.perf:mac_retina_perf_cq

Review-Url: https://codereview.chromium.org/2118293002
Cr-Commit-Position: refs/heads/master@{#405212}
Commit  : 5b1847df818e5be4592e9a6ac4832350bb663023
Date    : Wed Jul 13 17:39:28 2016


===== TESTED REVISIONS =====
Revision         Mean      Std Dev  N  Good?
chromium@405209  8323661   78312.3  5  good
chromium@405211  8630421   184227   5  good
chromium@405212  10233678  47487.2  5  bad    <--
chromium@405215  10208387  119440   5  bad
chromium@405221  10233080  70901.9  5  bad

Bisect job ran on: android_nexus9_perf_bisect
Bug ID: 628263

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_chrome:v8:effective_size_avg/load_social_facebook
Relative Change: 22.94%
Score: 99.9

Buildbot stdio: http://build.chromium.org/p/tryserver.chromium.perf/builders/android_nexus9_perf_bisect/builds/2017
Job details: https://chromeperf.appspot.com/buildbucket_job_status/9004252497160699280


Not what you expected? We'll investigate and get back to you!
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5813717690744832

| 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!

SH story set change.