All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=846667

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=cf2bd065d3e1a4eab441f64ac8066361dc84381a0b7a5b00c9f1b1ab46700c21


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

perf-go-phone-512

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8945557215828816736

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

Suspected Commit
  Author : jgruber
  Commit : e0c3f6d6ca005185e537fb85bbe841fe5dae5240
  Date   : Tue May 08 11:21:37 2018
  Subject: Disable embedded builtins

Bisect Details
  Configuration: go-phone-512-perf-bisect
  Benchmark    : system_health.memory_mobile
  Metric       : memory:chrome:all_processes:reported_by_chrome:v8:allocated_objects_size_avg/browse_news/browse_news_qq
  Change       : 32.00% | 1480422.0 -> 1954166.0

Revision                                                     Result                  N
android-chrome@be902aa047                                    1480422 +- 162319       6      good
android-chrome@be902aa047,chromium@556849                    1415471 +- 2359.83      6      good
android-chrome@be902aa047,chromium@556890                    1415444 +- 2468.61      6      good
android-chrome@be902aa047,chromium@556893                    1414121 +- 688.835      6      good
android-chrome@be902aa047,chromium@556894                    1415378 +- 2512.81      6      good
android-chrome@be902aa047,chromium@556894,v8@855850eb7f      1546457 +- 206161       6      good
android-chrome@be902aa047,chromium@556894,v8@e0c3f6d6ca      1887655 +- 162467       6      bad       <--
android-chrome@be902aa047,chromium@556894,v8@c34562803e      1887583 +- 162292       6      bad
android-chrome@be902aa047,chromium@556894,v8@9f5018c9b0      2020229 +- 217864       6      bad
android-chrome@be902aa047,chromium@556894,v8@61af2762ef      1887995 +- 161805       6      bad
android-chrome@be902aa047,chromium@556895                    1953241 +- 205149       6      bad
android-chrome@be902aa047,chromium@556901                    1953737 +- 205722       6      bad
android-chrome@be902aa047,chromium@556911                    2019652 +- 218081       6      bad
android-chrome@1390428f76                                    2019502 +- 217467       6      bad
android-chrome@41db54dacb                                    1954166 +- 206438       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-chrome --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=browse.news.qq 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/8945557215828816736


For feedback, file a bug with component Speed>Bisection