All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=788179

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=7640458ff43aedfbc2869b1e09dddbcaa695e1a3f456a62893c6fa03424d885e


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

android-webview-nexus6

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8962126062765514272

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

Suspected Commit
  Author : Bill Budge
  Commit : 0481b23e2562fcb001494de3765a3ef61427fd00
  Date   : Tue Nov 21 16:48:55 2017
  Subject: [Memory] Rewrite platform OS Commit / Uncommit in terms of permissions.

Bisect Details
  Configuration: android_webview_nexus6_aosp_perf_bisect
  Benchmark    : system_health.memory_mobile
  Metric       : memory:webview:all_processes:reported_by_os:system_memory:proportional_resident_size_avg/browse_shopping/browse_shopping_amazon
  Change       : 14.42% | 99628062.6667 -> 113995977.333

Revision                           Result                    N
chromium@518554                    99628063 +- 2318577       6      good
chromium@518566                    99385033 +- 3443666       6      good
chromium@518572                    100088009 +- 2252820      6      good
chromium@518573                    99312841 +- 1364212       6      good
chromium@518573,v8@a8df8f38a1      100049268 +- 3830808      6      good
chromium@518573,v8@8036c41f1e      99824671 +- 2308594       6      good
chromium@518573,v8@0481b23e25      114000585 +- 5327222      6      bad       <--
chromium@518574                    115139956 +- 5992016      6      bad
chromium@518575                    115224265 +- 2004594      6      bad
chromium@518578                    112670580 +- 4250897      6      bad
chromium@518602                    113995977 +- 6791435      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-webview --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=browse.shopping.amazon 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/8962126062765514272


For feedback, file a bug with component Speed>Bisection