All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=773029

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=9a4e487bcb24f008b0e2d0a7dd28ce3c0fe8e4ed504fe590944c92d586c0316d


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

android-nexus5
chromium-rel-mac12

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8966182064374933456

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

Suspected Commit
  Author : Khushal
  Commit : 051a012c57a3fdfd6c933ec3df1c0e60d247a73a
  Date   : Fri Oct 06 04:42:46 2017
  Subject: perf: Enable field trial testing for image animations in cc.

Bisect Details
  Configuration: android_nexus5_perf_bisect
  Benchmark    : system_health.memory_mobile
  Metric       : memory:chrome:all_processes:reported_by_chrome:cc:effective_size_avg/browse_social/browse_social_tumblr_infinite_scroll
  Change       : 29.27% | 225832280.0 -> 291943773.333

Revision             Result                     N
chromium@506948      225832280 +- 28902951      6      good
chromium@506962      209162766 +- 29939872      6      good
chromium@506966      210312143 +- 26076557      6      good
chromium@506968      221190135 +- 22724495      6      good
chromium@506969      299062222 +- 39038890      6      bad       <--
chromium@506976      291943773 +- 37279363      6      bad

Please refer to the following doc on diagnosing memory regressions:
  https://chromium.googlesource.com/chromium/src/+/master/docs/memory-infra/memory_benchmarks.md

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.tumblr.infinite.scroll system_health.memory_mobile

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8966182064374933456


For feedback, file a bug with component Speed>Bisection