All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=783619

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=8b4dd9a9b75fa8a55781bdec273476d80b865b0de47fdc8815d7bd062f8c7bc1


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

android-nexus5
android-webview-nexus5X
android-webview-nexus6
chromium-rel-win10

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8963323674167783152

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

Suspected Commit
  Author : Justin Novosad
  Commit : 5b07996e178c5f4e153e771d48ab839867fa7440
  Date   : Wed Nov 08 23:26:00 2017
  Subject: Reland: Refactor of Canvas2DLayerBridge resource model

Bisect Details
  Configuration: android_nexus5_perf_bisect
  Benchmark    : memory.top_10_mobile
  Metric       : memory:chrome:all_processes:reported_by_chrome:gpu:effective_size_avg/background/after_http_m_youtube_com_results_q_science
  Change       : 102400.00% | 2048.0 -> 2099200.0

Revision             Result              N
chromium@514974      2048.0 +- 0.0       6      good
chromium@514989      2048.0 +- 0.0       6      good
chromium@514997      2048.0 +- 0.0       6      good
chromium@514999      2048.0 +- 0.0       6      good
chromium@515000      2048.0 +- 0.0       6      good
chromium@515001      2099200 +- 0.0      6      bad       <--
chromium@515004      2099200 +- 0.0      6      bad
chromium@515033      2099200 +- 0.0      6      bad
chromium@515092      2099200 +- 0.0      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=http.m.youtube.com.results.q.science memory.top_10_mobile

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8963323674167783152


For feedback, file a bug with component Speed>Bisection