All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=660175

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg_ejItAkM


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

android-nexus7v2

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8997613116026910224

===== BISECT JOB RESULTS =====
Status: failed


===== TESTED REVISIONS =====
Revision         Mean     Std Dev  N  Good?
chromium@425670  8095954  278207   5  good

Bisect job ran on: android_nexus7_perf_bisect
Bug ID: 660175

Test Command: src/tools/perf/run_benchmark -v --browser=android-chromium --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests system_health.memory_mobile
Test Metric: memory:chrome:all_processes:reported_by_chrome:v8:effective_size_avg/load_search/load_search_yahoo
Relative Change: 1.08%
Score: 0

Buildbot stdio: http://build.chromium.org/p/tryserver.chromium.perf/builders/android_nexus7_perf_bisect/builds/3429
Job details: https://chromeperf.appspot.com/buildbucket_job_status/8997613116026910224


Not what you expected? We'll investigate and get back to you!
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5873506284208128

| 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/8997523049704488656

Looking at the graph again, the alert may have been late. Rerunning bisect with wider range to encompass the obvious shift.

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


===== SUSPECTED CL(s) =====
Subject : Pool implementation for zone segments
Author  : heimbuef
Commit description:
  
BUG=v8:5409

Committed: https://crrev.com/37c688a24578e787d3d8941093563ed049c3497e
Committed: https://crrev.com/316669f62ea3834395bf4caab7bc3d7c32f6bbc6
Review-Url: https://codereview.chromium.org/2335343007
Cr-Original-Original-Commit-Position: refs/heads/master@{#39631}
Cr-Original-Commit-Position: refs/heads/master@{#40044}
Cr-Commit-Position: refs/heads/master@{#40137}
Commit  : f29f3e320831f7eec8703b083dbbb91d88c65dca
Date    : Mon Oct 10 18:03:55 2016


===== TESTED REVISIONS =====
Revision                       Mean     Std Dev  N  Good?
chromium@424329                6106769  84270.2  5  good
chromium@424372                6011514  35901.9  5  good
chromium@424394                6039274  19244.6  5  good
chromium@424397                6050268  64844.5  5  good
chromium@424398                6032642  83633.3  5  good
chromium@424398,v8@b884a51ff2  6038874  79166.4  5  good
chromium@424398,v8@f29f3e3208  7957484  2920.55  5  bad    <--
chromium@424398,v8@a96c2129af  8023850  50699.7  5  bad
chromium@424398,v8@085a445775  7991634  40071.9  5  bad
chromium@424398,v8@6e95a8f0a6  7942513  58159.6  5  bad
chromium@424398,v8@127798897f  7972214  51482.2  5  bad
chromium@424399                7906868  35261.3  5  bad
chromium@424400                7937136  56229.9  5  bad
chromium@424405                7933774  44652.1  5  bad
chromium@424415                7904663  34050.6  5  bad
chromium@424500                7930003  34173.2  5  bad
chromium@424670                8265981  17301.3  5  bad
chromium@425010                7972102  39310.0  5  bad
chromium@425690                8118542  305253   5  bad

Bisect job ran on: android_nexus7_perf_bisect
Bug ID: 660175

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=load.search.yahoo system_health.memory_mobile
Test Metric: memory:chrome:all_processes:reported_by_chrome:v8:effective_size_avg/load_search/load_search_yahoo
Relative Change: 32.94%
Score: 99.9

Buildbot stdio: http://build.chromium.org/p/tryserver.chromium.perf/builders/android_nexus7_perf_bisect/builds/3430
Job details: https://chromeperf.appspot.com/buildbucket_job_status/8997523049704488656


Not what you expected? We'll investigate and get back to you!
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5304339365625856

| 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!