All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=628262

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg8svmvgkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgivOOsgkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg8oeHoQkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg8s_4rAoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgsu__6QoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgivr9pgoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgiqKe9AsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgiovBoAoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgitLLuwoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgitLfpgoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg8sv8rwkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgiufqvQoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgiuCluwkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg8tPprAkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgivqntwoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgirn7owoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgioawrgoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgiv7uuAoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg8sGH5wgM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgyqCZuwoM


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

android-nexus6

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/9007146217754085328

===== 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@405309  8069737  1896812  12  good
chromium@405379  7564704  2186577  8   bad

Bisect job ran on: android_nexus6_perf_bisect
Bug ID: 628262

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_tools-memory:chrome:all_processes:reported_by_chrome:partition_alloc:effective_size_avg/load_tools_weather
Relative Change: 9.92%
Score: 0

Buildbot stdio: http://build.chromium.org/p/tryserver.chromium.perf/builders/android_nexus6_perf_bisect/builds/2311
Job details: https://chromeperf.appspot.com/buildbucket_job_status/9007146217754085328


Not what you expected? We'll investigate and get back to you!
  https://chromeperf.appspot.com/bad_bisect?try_job_id=6422639086665728

| 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!

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/9007063877338118624

Running another bisect: https://build.chromium.org/p/tryserver.chromium.perf/builders/android_nexus6_perf_bisect/builds/2315

===== 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@405202  4925378  29375.1  5   good
chromium@405211  4871425  67768.7  12  good
chromium@405212  7512152  2358395  5   bad    <--
chromium@405213  8111994  1966049  12  bad
chromium@405214  9199057  76211.0  8   bad
chromium@405216  8668819  1529157  8   bad
chromium@405220  8353717  1899284  5   bad

Bisect job ran on: android_nexus6_perf_bisect
Bug ID: 628262

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_tools-memory:chrome:all_processes:reported_by_chrome:partition_alloc:effective_size_avg/load_tools_weather
Relative Change: 87.77%
Score: 99.9

Buildbot stdio: http://build.chromium.org/p/tryserver.chromium.perf/builders/android_nexus6_perf_bisect/builds/2315
Job details: https://chromeperf.appspot.com/buildbucket_job_status/9007063877338118624


Not what you expected? We'll investigate and get back to you!
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5214411099209728

| 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!