All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=758854

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=9cb67c0abde4414667e27236d84db3c5b925d0bae6de9cecf046bf3cc7fb4b5a


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

android-nexus7v2

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8970304232071206320

=== 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_nexus7_perf_bisect
  Benchmark    : v8.browsing_mobile
  Metric       : v8-gc-total_max/browse_social/browse_social_instagram
  Change       : 127.12% | 27.83 -> 63.2087777778

Suspected Commit Range
  7 commits in range
  https://chromium.googlesource.com/chromium/src/+log/f4b6de131ff7e248b4404d7cca45c14a7ccf1441..0a7aafaae4eb1d726d7564d4d63960a73c36594d


Revision             Result                  N
chromium@496047      27.83 +- 60.9211        14       good
chromium@496203      23.2761 +- 39.0343      14       good
chromium@496205      24.7649 +- 36.034       14       good
chromium@496206      ---                     ---      build failure
chromium@496207      ---                     ---      build failure
chromium@496208      ---                     ---      build failure
chromium@496209      ---                     ---      build failure
chromium@496210      ---                     ---      build failure
chromium@496211      ---                     ---      build failure
chromium@496212      30.9754 +- 66.3272      14       bad
chromium@496221      41.628 +- 93.0799       14       bad
chromium@496242      64.5412 +- 50.9483      9        bad
chromium@496280      45.2031 +- 96.3087      14       bad
chromium@496357      61.4299 +- 87.8317      14       bad
chromium@496667      63.2088 +- 62.045       9        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 --story-filter=browse.social.instagram v8.browsing_mobile

More information on addressing performance regressions:
  http://g.co/ChromePerformanceRegressions

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8970304232071206320


For feedback, file a bug with component Speed>Bisection

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8970016250251925728

=== 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_nexus7_perf_bisect
  Benchmark    : v8.browsing_mobile
  Metric       : v8-gc-total_max/browse_social/browse_social_instagram
  Change       : 172.12% | 27.5399285714 -> 55.6618571429

Suspected Commit Range
  2 commits in range
  https://chromium.googlesource.com/chromium/src/+log/10c49d72428d58647f5f73712edcd2c40b3169ab..6a2d24e5e5ab0b657f3740856c37b73b914d55e1


Revision             Result                  N
chromium@496000      27.5399 +- 35.6708      14       good
chromium@496175      21.5505 +- 13.1234      6        good
chromium@496219      24.3159 +- 32.7533      14       good
chromium@496226      27.6142 +- 54.8823      14       good
chromium@496228      22.4545 +- 24.2631      14       good
chromium@496229      ---                     ---      build failure
chromium@496230      59.3065 +- 90.7654      14       bad
chromium@496241      60.8454 +- 68.2244      9        bad
chromium@496262      69.9617 +- 2.51547      6        bad
chromium@496349      73.5118 +- 5.94971      6        bad
chromium@496699      55.6619 +- 93.2238      14       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 --story-filter=browse.social.instagram v8.browsing_mobile

More information on addressing performance regressions:
  http://g.co/ChromePerformanceRegressions

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8970016250251925728


For feedback, file a bug with component Speed>Bisection