All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=619019

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgvKb2sgoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg_KDGtQoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgvL6qvQoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgvL6PuwoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgvIm7pgkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg3I2YswoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgvJLNvgoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg3JX9uAkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg3LXJ_ggM


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

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

===== 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@398676  43771.1  22423.6  9  good
chromium@398682  36008.1  9648.48  8  bad

Bisect job ran on: android_nexus7_perf_bisect
Bug ID: 619019

Test Command: src/tools/perf/run_benchmark -v --browser=android-chromium --output-format=chartjson --upload-results --also-run-disabled-tests page_cycler.intl_hi_ru
Test Metric: vm_private_dirty_final_renderer/vm_private_dirty_final_renderer
Relative Change: 29.63%
Score: 0

Buildbot stdio: http://build.chromium.org/p/tryserver.chromium.perf/builders/android_nexus7_perf_bisect/builds/3008
Job details: https://chromeperf.appspot.com/buildbucket_job_status/9010235481992063280


Not what you expected? We'll investigate and get back to you!
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5814258147786752

| 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!

Re-kicked a more focused bisect

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


===== SUSPECTED CL(s) =====
Subject : cc: Separate raster and decode prepaint regions.
Author  : vmpstr
Commit description:
  
This patch separates raster and decode distances to be
independent of each other. Specifically, any tile in prepaint
that is further than 1000 screen space pixels from the
viewport will not be rasterized. Instead, we will pull out
the images on those tiles and predecode those instead.

R=enne, ericrk
CQ_INCLUDE_TRYBOTS=tryserver.blink:linux_blink_rel

Review-Url: https://codereview.chromium.org/2007163002
Cr-Commit-Position: refs/heads/master@{#398677}
Commit  : 70a29c1298e666c465a8e75530575eda1aeaa37c
Date    : Wed Jun 08 21:21:04 2016


===== TESTED REVISIONS =====
Revision         Mean    Std Dev  N  Good?
chromium@398663  120545  782.743  5  good
chromium@398672  120004  452.666  5  good
chromium@398675  120707  488.141  5  good
chromium@398676  120378  797.905  5  good
chromium@398677  131866  1377.53  5  bad    <--
chromium@398681  131304  357.708  5  bad
chromium@398699  131147  295.522  5  bad
chromium@398735  131597  504.641  5  bad

Bisect job ran on: android_nexus9_perf_bisect
Bug ID: 619019

Test Command: src/tools/perf/run_benchmark -v --browser=android-chromium --output-format=chartjson --upload-results --also-run-disabled-tests page_cycler.typical_25
Test Metric: vm_private_dirty_final_renderer/http___premierleague.com
Relative Change: 9.17%
Score: 99.9

Buildbot stdio: http://build.chromium.org/p/tryserver.chromium.perf/builders/android_nexus9_perf_bisect/builds/1823
Job details: https://chromeperf.appspot.com/buildbucket_job_status/9010213559558205872


Not what you expected? We'll investigate and get back to you!
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5909736210300928

| 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!