All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=677434

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgn77l7ggM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgn9SyvgoM


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

android-nexus5

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8991948482092234800

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


=== Bisection aborted ===
The bisect was aborted because Bisect cannot identify a culprit: Bisect failed to reproduce the regression with enough confidence.
Please contact the the team (see below) if you believe this is in error.

===== TESTED REVISIONS =====
Revision         Mean     Std Dev  N    Good?
chromium@439851  98.7494  2143.97  234  good
chromium@439890  119.092  2862.99  234  bad

Bisect job ran on: android_nexus5_perf_bisect
Bug ID: 677434

Test Command: src/tools/perf/run_benchmark -v --browser=android-chromium --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests v8.key_mobile_sites_smooth
Test Metric: v8_gc_total_outside_idle/v8_gc_total_outside_idle
Relative Change: 20.60%

Buildbot stdio: http://build.chromium.org/p/tryserver.chromium.perf/builders/android_nexus5_perf_bisect/builds/4489
Job details: https://chromeperf.appspot.com/buildbucket_job_status/8991948482092234800


Not what you expected? We'll investigate and get back to you!
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5780191614337024

| 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/8990641632535510000

=== BISECT JOB RESULTS ===
Perf regression found but unable to narrow commit range

Build failures prevented the bisect from narrowing the range further.


Bisect Details
  Configuration: android_nexus5_perf_bisect
  Benchmark    : v8.key_mobile_sites_smooth
  Metric       : v8_gc_total_outside_idle/v8_gc_total_outside_idle

Suspected Commit Range
  10 commits in range
  https://chromium.googlesource.com/chromium/src/+log/7a5951c0df12e6b7d58d09ba3206a112c8293662..2148ce8dba160adeae60fa2279eb023d762f274c


Revision             Result                  N
chromium@439851      97.585 +- 3.94709       6        good
chromium@439861      96.9208 +- 6.79908      6        good
chromium@439862      ---                     ---      build failure
chromium@439863      ---                     ---      build failure
chromium@439864      ---                     ---      build failure
chromium@439865      ---                     ---      build failure
chromium@439866      ---                     ---      build failure
chromium@439867      ---                     ---      build failure
chromium@439868      ---                     ---      build failure
chromium@439869      ---                     ---      build failure
chromium@439870      ---                     ---      build failure
chromium@439871      118.904 +- 9.69144      6        bad
chromium@439890      116.69 +- 6.85825       6        bad

To Run This Test
  src/tools/perf/run_benchmark -v --browser=android-chromium --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests v8.key_mobile_sites_smooth

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8990641632535510000

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=6270291073826816


| 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/8982592493623252688

=== BISECT JOB RESULTS ===
NO Perf regression found

Bisect Details
  Configuration: android_nexus5_perf_bisect
  Benchmark    : v8.key_mobile_sites_smooth
  Metric       : v8_gc_total_outside_idle/v8_gc_total_outside_idle

Revision             Result                  N
chromium@439851      98.7494 +- 2143.97      234      good
chromium@439890      119.092 +- 2862.99      234      bad

To Run This Test
  src/tools/perf/run_benchmark -v --browser=android-chromium --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests v8.key_mobile_sites_smooth

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8982592493623252688

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5780191614337024


| 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 Speed>Bisection.  Thank you!

This alert was found before M-60 branched. Closing as WontFix as this is believed to either be invalid or non-reproducible.