All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=633171

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICghqqHuQkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg-pftoAoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICghrPRqgoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICghrPRqgkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICghumGowoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg-uyZowsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICghrONuwoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICghuCfpAoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICghumRsgoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgupH38AkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICghtj2qAsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICghsToqwoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg-pXB9woM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICghvbR7QgM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICghoLvqAsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICghrP_twoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg-ozb7AkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICghqeOowkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICghtrKuAoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICght2opgkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICghuqQpAkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICghqfErQkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICghqKquwoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICghrfYoQoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICghqK-pgoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICghqPdsAsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg-uu7rAsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICghvf3pwoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg2vu03ggM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICghq3FpwsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICghpCpogoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgho_otgoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICghtnspAoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg-snhtQkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICghrrGqwoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICghr3DvAoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICghrrRugoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICghvPXuAoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg-tfjvQoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICghr2XowoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg-uO3qQsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICghvnMsAoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgxsXvqgoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgxsemowoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgxrWotQoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgxq6AtwoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgxvflsQoM


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

android-galaxy-s5
android-nexus5
android-nexus6
android-nexus7v2
android-nexus9
android-one

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/9005530352047423152

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/9004248804161485616

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


===== SUSPECTED CL(s) =====
Subject : predictors: Remove the HTTP restriction for speculative prefetch.
Author  : lizeb
Commit description:
  
The prefetcher skips the HTTPS main pages and subresources, which is
unfortunate as more and more pages and resources are served over HTTPS.

Example from loading the verge with this patch, (from
prefetch_predictor_tool.py) on Android:

https://cdn0.vox-cdn.com/stylesheets/verge2_all.v7ffc13f1b68c7dbd.css
https://cdn0.vox-cdn.com/javascripts/libraries.vc262b07aa2474684.js
https://cdn0.vox-cdn.com/javascripts/lib/advertisement.v6fdc11c.js
https://optimize-stats.voxmedia.com/loader.min.js?key=efd28c71b5699c36
https://cdn0.vox-cdn.com/javascripts/verge2_head.v43436e3cdcad9833.js
http://ad-cdn.technoratimedia.com/smartwrapper/81065/1027/sw.min.js
https://www.googletagservices.com/tag/js/gpt.js
https://cdn0.vox-cdn.com/javascripts/verge2_body.v9f33e9e87ec93cd8.js

Without:

http://ad-cdn.technoratimedia.com/smartwrapper/81065/1027/sw.min.js
http://partner.googleadservices.com/gpt/pubads_impl_92.js
http://cdn.yldbt.com/js/yieldbot.intent.js
http://ads.rubiconproject.com/header/7470.js
http://sbnationbidder-d.openx.net/w/1.0/jstag?nc=172968584-theverge1
http://cdn.krxd.net/ctjs/controltag.js.726d287890a4d2c520d4a7a450e210ea
http://www.google-analytics.com/analytics.js
http://pagead2.googlesyndication.com/pagead/osd.js

BUG=631966

Review-Url: https://codereview.chromium.org/2186803004
Cr-Commit-Position: refs/heads/master@{#408139}
Commit  : c9c483d3058976b76c1c5b4deb3047db140d89cf
Date    : Wed Jul 27 15:57:17 2016


===== TESTED REVISIONS =====
Revision         Mean    Std Dev  N  Good?
chromium@408118  467294  57.2433  5  good
chromium@408130  467710  1018.08  5  good
chromium@408136  467320  0.0      4  good
chromium@408138  469147  4371.96  5  good
chromium@408139  511722  57.2433  5  bad    <--
chromium@408142  511562  518.163  5  bad

Bisect job ran on: android_nexus6_perf_bisect
Bug ID: 633171

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: browse_news-memory:chrome:all_processes:reported_by_chrome:sqlite:effective_size_avg/browse_news_washingtonpost
Relative Change: 9.47%
Score: 99.9

Buildbot stdio: http://build.chromium.org/p/tryserver.chromium.perf/builders/android_nexus6_perf_bisect/builds/2468
Job details: https://chromeperf.appspot.com/buildbucket_job_status/9004248804161485616


Not what you expected? We'll investigate and get back to you!
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5840508891430912

| 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!