All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=776735

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=e1ccd710997d3067098cdca5550cc2044dd9d011c25087659405dbca21dae54a


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

android-nexus5
chromium-rel-mac12

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8965206985872087328

=== 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       : 46.83% | 204305310.0 -> 299988273.333

Revision             Result                     N
chromium@506948      204305310 +- 15751369      6      good
chromium@506962      219377601 +- 22841747      6      good
chromium@506966      220669718 +- 33757551      6      good
chromium@506968      218769385 +- 37513699      6      good
chromium@506969      299445594 +- 21539273      6      bad       <--
chromium@506976      299988273 +- 25322686      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/8965206985872087328


For feedback, file a bug with component Speed>Bisection