All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=661527

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgg92lsgoM


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

android-nexus9

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8997108547334803504

===== 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@428180  58775575  6294622  18  good
chromium@428224  60271435  5420870  18  bad

Bisect job ran on: android_nexus9_perf_bisect
Bug ID: 661527

Test Command: src/tools/perf/run_benchmark -v --browser=android-chromium --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests memory.top_10_mobile_stress
Test Metric: memory:chrome:all_processes:reported_by_chrome:cc:effective_size_avg/foreground/https_mobile_twitter_com_justinbieber_skip_interstitial_true
Relative Change: 11.08%
Score: 0

Buildbot stdio: http://build.chromium.org/p/tryserver.chromium.perf/builders/android_nexus9_perf_bisect/builds/2228
Job details: https://chromeperf.appspot.com/buildbucket_job_status/8997108547334803504


Not what you expected? We'll investigate and get back to you!
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5824503739842560

| 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/8997098566298503664

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


===== SUSPECTED CL(s) =====
Subject : Add field trial config for CSSExternalScanner experiment
Author  : csharrison
Commit description:
  
BUG= 596676 

Review-Url: https://codereview.chromium.org/2454823004
Cr-Commit-Position: refs/heads/master@{#428146}
Commit  : 90f9f786e88b196d391e6daffb4c9ab7ca7087ab
Date    : Thu Oct 27 21:33:49 2016


===== TESTED REVISIONS =====
Revision         Mean      Std Dev  N   Good?
chromium@427812  49988484  7458448  12  good
chromium@428018  46709104  0.0      5   good
chromium@428121  46709104  0.0      5   good
chromium@428134  46709104  0.0      5   good
chromium@428141  49658224  6594433  5   good
chromium@428144  46709104  0.0      12  good
chromium@428145  48535237  6325911  12  good
chromium@428146  54456666  7195432  8   bad    <--
chromium@428147  61161976  3549059  8   bad
chromium@428173  59806691  7321774  5   bad
chromium@428224  61202466  3554719  8   bad

Bisect job ran on: android_nexus9_perf_bisect
Bug ID: 661527

Test Command: src/tools/perf/run_benchmark -v --browser=android-chromium --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=https.mobile.twitter.com.justinbieber.skip.interstitial.true memory.top_10_mobile_stress
Test Metric: memory:chrome:all_processes:reported_by_chrome:cc:effective_size_avg/foreground/https_mobile_twitter_com_justinbieber_skip_interstitial_true
Relative Change: 22.32%
Score: 98.0

Buildbot stdio: http://build.chromium.org/p/tryserver.chromium.perf/builders/android_nexus9_perf_bisect/builds/2231
Job details: https://chromeperf.appspot.com/buildbucket_job_status/8997098566298503664


Not what you expected? We'll investigate and get back to you!
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5903618648047616

| 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!