All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=780210

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=ce904b0390e08fff0608fe7bf94f6ca017aec76dfc16b389ca9285d1db896541


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

android-webview-nexus5X

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8964184927562907568

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

Suspected Commit
  Author : Stephen Chenney
  Commit : 2faf4aa8f809aee54bd228d0fb375bbd67b4d2be
  Date   : Wed Oct 25 18:58:49 2017
  Subject: Tighten the restriction on squashing for border radius

Bisect Details
  Configuration: android_webview_arm64_aosp_perf_bisect
  Benchmark    : memory.top_10_mobile
  Metric       : memory:webview:all_processes:reported_by_os:system_memory:native_heap:proportional_resident_size_avg/foreground/https_www_google_co_uk_hl_en_q_science
  Change       : 1.20% | 42119082.2857 -> 42622630.2222

Revision             Result                   N
chromium@511528      42119082 +- 1418279      14      good
chromium@511535      42347629 +- 1914851      21      good
chromium@511538      42133126 +- 1349473      14      good
chromium@511539      42319689 +- 1874647      21      good
chromium@511540      42764495 +- 648574       14      bad       <--
chromium@511541      42773565 +- 914329       14      bad
chromium@511554      42713197 +- 871273       9       bad
chromium@511580      42622630 +- 824270       9       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-webview --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=https.www.google.co.uk.hl.en.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/8964184927562907568


For feedback, file a bug with component Speed>Bisection