All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=866394

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=bcf55218c4e69cee7bd8dacf817e0bee876798f510994141f5de758014ae4a85


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

health-plan-clankium-low-end-phone
health-plan-clankium-phone
health-plan-webview-low-end-phone
health-plan-webview-phone
perf-go-phone-1024
perf-go-phone-512
perf-go-webview-phone

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8940223102165785360

=== Auto-CCing suspected CL author sigurds@chromium.org ===

Hi sigurds@chromium.org, the bisect results pointed to your CL, please take a look at the
results.


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

Suspected Commit
  Author : Sigurd Schneider
  Commit : 46a78fbedfcd458f5d35097bdf1a9947644f4b0e
  Date   : Tue Jul 17 15:33:20 2018
  Subject: Revert "[embedded-builtins] Enable on all arches except x86 for benchmarks"

Bisect Details
  Configuration: go-webview-phone-perf-bisect
  Benchmark    : system_health.memory_mobile
  Metric       : memory:webview:all_processes:reported_by_chrome:v8:allocated_objects_size_avg/background_search/background_search_google
  Change       : 6.42% | 6565139.04762 -> 6986525.14286

Revision                                                     Result                 N
android-chrome@74662f91c8                                    6565139 +- 428280      21      good
android-chrome@74662f91c8,chromium@575926                    6395189 +- 320937      14      good
android-chrome@74662f91c8,chromium@575929                    6369624 +- 294682      9       good
android-chrome@74662f91c8,chromium@575929,v8@46a78fbedf      6773112 +- 290804      9       bad       <--
android-chrome@74662f91c8,chromium@575929,v8@e3a5b1e402      6870442 +- 385466      9       bad
android-chrome@74662f91c8,chromium@575929,v8@16af1baac4      6868423 +- 384826      9       bad
android-chrome@74662f91c8,chromium@575930                    6798270 +- 320974      14      bad
android-chrome@74662f91c8,chromium@575936                    6925864 +- 404380      21      bad
android-chrome@1032e70048                                    6986525 +- 434040      14      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=background.search.google 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/8940223102165785360


For feedback, file a bug with component Speed>Bisection