All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=633948

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgppOkogoM


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

android-nexus5X

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/9005355093907889120

===== 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@409261  13354242  0.0      8  good
chromium@409305  14664962  1085379  8  bad

Bisect job ran on: android_nexus5X_perf_bisect
Bug ID: 633948

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_media-memory:chrome:all_processes:reported_by_chrome:skia:effective_size_avg/load_media_google_images
Relative Change: 9.42%
Score: 0

Buildbot stdio: http://build.chromium.org/p/tryserver.chromium.perf/builders/android_nexus5X_perf_bisect/builds/427
Job details: https://chromeperf.appspot.com/buildbucket_job_status/9005355093907889120


Not what you expected? We'll investigate and get back to you!
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5796276549976064

| 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/9005329743719348560

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


===== SUSPECTED CL(s) =====
Subject : Raster display item lists via a visual rect RTree.
Author  : wkorman
Commit description:
  
Rather than caching and playing back an entire SkPicture
when rastering a display item list for a particular
playback rect, instead retain display items and query
them via an RTree of their visual rects to find and
raster only what's needed.

Display item lists no longer support the notion of a
bounding "layer rect" with mutable origin.

DisplayItemListSettings proto is obsolete after this
change as it's comprised solely of one field to allow
switching whether to use the aforementioned now-deleted
cached SkPicture code path. It will be deleted in a
subsequent patch.

BUG= 529938 
TBR=sadrul
CQ_INCLUDE_TRYBOTS=master.tryserver.blink:linux_precise_blink_rel

Review-Url: https://codereview.chromium.org/1484163002
Cr-Commit-Position: refs/heads/master@{#409291}
Commit  : ccb9e13712b1632b889960d1d85d556c0139fd51
Date    : Tue Aug 02 20:08:52 2016


===== TESTED REVISIONS =====
Revision         Mean      Std Dev  N  Good?
chromium@409260  20031632  0.0      5  good
chromium@409289  20031632  0.0      5  good
chromium@409290  20031632  0.0      5  good
chromium@409291  31828112  0.0      5  bad    <--
chromium@409293  31828112  0.0      5  bad
chromium@409296  31828112  0.0      4  bad
chromium@409303  31828112  0.0      5  bad
chromium@409317  31828112  0.0      5  bad

Bisect job ran on: android_nexus9_perf_bisect
Bug ID: 633948

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_games-memory:chrome:all_processes:reported_by_chrome:cc:effective_size_avg/load_games_spychase
Relative Change: 58.89%
Score: 99.9

Buildbot stdio: http://build.chromium.org/p/tryserver.chromium.perf/builders/android_nexus9_perf_bisect/builds/1967
Job details: https://chromeperf.appspot.com/buildbucket_job_status/9005329743719348560


Not what you expected? We'll investigate and get back to you!
  https://chromeperf.appspot.com/bad_bisect?try_job_id=6073071086075904

| 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!