All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=733263

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDglt6xgwoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg5vqz_AgM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgtrCwswoM


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

android-webview-nexus5X

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8976800663554646320

Assigning to performance sheriff.

=== BISECT JOB RESULTS ===
Bisect was unable to run to completion

Error: TIMEOUT

The bisect was able to narrow the range, you can try running with:
  good_revision: 2417d00a4e397fffcb5a76ff670fc8bb52819c1e
  bad_revision : 99c49baaf56fc1d3c0fac377f975a737686e7ae0

If failures persist contact the team (see below) and report the error.


Bisect Details
  Configuration: android_webview_arm64_aosp_perf_bisect
  Benchmark    : v8.runtimestats.browsing_mobile
  Metric       : GC:duration_avg/browse_tech/browse_tech_discourse_infinite_scroll
  Change       : 106.22% | 93.7081111111 -> 196.288333333

Revision             Result                  N
chromium@478650      93.7081 +- 30.4643      9      good
chromium@478651      212.304 +- 115.54       6      bad
chromium@478652      193.667 +- 120.699      9      bad
chromium@478654      222.782 +- 30.2598      6      bad
chromium@478658      224.326 +- 36.1512      6      bad
chromium@478666      200.649 +- 106.86       6      bad
chromium@478682      196.288 +- 76.8291      6      bad

To Run This Test
  src/tools/perf/run_benchmark -v --browser=android-webview --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=browse.tech.discourse.infinite.scroll v8.runtimestats.browsing_mobile

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8976800663554646320

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5049685305196544


| 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!

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8976619306938521600

=== BISECT JOB RESULTS ===
Perf regression found with culprit

Suspected Commit
  Author : hpayer
  Commit : 07b7d7206ac49997077bdff37e42fec71e492149
  Date   : Mon Jun 12 11:37:15 2017
  Subject: [heap] Scale max heap growing factor.

Bisect Details
  Configuration: android_webview_arm64_aosp_perf_bisect
  Benchmark    : v8.runtimestats.browsing_mobile
  Metric       : GC:duration_avg/browse_tech/browse_tech_discourse_infinite_scroll
  Change       : 155.32% | 92.061 -> 235.049666667

Revision                           Result                  N
chromium@478650                    92.061 +- 37.5191       6      good
chromium@478650,v8@f555a6922d      82.561 +- 13.9417       6      good
chromium@478650,v8@07b7d7206a      213.753 +- 53.5011      6      bad       <--
chromium@478650,v8@1d0a582440      222.243 +- 30.1084      6      bad
chromium@478651                    207.126 +- 93.2699      6      bad
chromium@478652                    208.924 +- 48.7155      6      bad
chromium@478654                    206.396 +- 43.4033      6      bad
chromium@478658                    198.366 +- 104.309      6      bad
chromium@478666                    217.72 +- 34.3306       6      bad
chromium@478682                    235.05 +- 34.9686       6      bad

To Run This Test
  src/tools/perf/run_benchmark -v --browser=android-webview --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=browse.tech.discourse.infinite.scroll v8.runtimestats.browsing_mobile

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8976619306938521600

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5049685305196544


| 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!