All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=619504

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg_JCrtAoM


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

android-galaxy-s5

Started another bisect here: https://chromeperf.appspot.com/buildbucket_job_status/9008940288878190048

But the previous bisects both pinpoint this v8 roll to 5.3.170: https://codereview.chromium.org/2040343003

Cc-ing test owners

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


===== SUSPECTED CL(s) =====
Subject : Track based on JSArrayBuffer addresses on pages instead of the attached
Author  : mlippautz
Commit description:
  backing store.

Details of tracking:
- Scavenge: New space pages are processes in bulk on the main thread
- MC: Unswept pages are processed in bulk in parallel. All other pages
  are processed by the sweeper concurrently.

BUG= chromium:611688 
LOG=N
TEST=cctest/test-array-buffer-tracker/*
CQ_EXTRA_TRYBOTS=tryserver.v8:v8_linux_arm64_gc_stress_dbg,v8_linux_gc_stress_dbg,v8_mac_gc_stress_dbg,v8_linux64_tsan_rel,v8_mac64_asan_rel

Review-Url: https://codereview.chromium.org/2036643002
Cr-Commit-Position: refs/heads/master@{#36798}
Commit  : 839f3fd406426a221d74eb7a33a72794c3c7a548
Date    : Tue Jun 07 17:29:35 2016


===== TESTED REVISIONS =====
Revision                       Mean     Std Dev   N  Good?
chromium@398494                42.8709  1.34391   5  good
chromium@398494,v8@1f2eaa1c14  46.5489  1.41304   5  good
chromium@398494,v8@ba3703db61  46.4963  0.544133  5  good
chromium@398494,v8@839f3fd406  33.3863  0.549282  5  bad    <--
chromium@398494,v8@67af060318  32.3858  0.721344  5  bad
chromium@398495                32.8174  1.08041   5  bad

Bisect job ran on: android_s5_perf_bisect
Bug ID: 619504

Test Command: src/tools/perf/run_benchmark -v --browser=android-chromium --output-format=chartjson --upload-results --also-run-disabled-tests blink_perf.bindings
Test Metric: typed-array-construct-from-typed/typed-array-construct-from-typed
Relative Change: 23.45%
Score: 99.9

Buildbot stdio: http://build.chromium.org/p/tryserver.chromium.perf/builders/android_s5_perf_bisect/builds/737
Job details: https://chromeperf.appspot.com/buildbucket_job_status/9008940288878190048


Not what you expected? We'll investigate and get back to you!
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5253726005100544

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