All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=780231

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=41baa1854ca92a8205be60f35b1956c0d8eaad6d1b406202fd9e9d5da4e32abb


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

android-nexus5
android-nexus5X

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8964184415641427008

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

Suspected Commit
  Author : Nicholas Verne
  Commit : 5420564de0e2b7da728e7a9402e04b6cdfb9fc0a
  Date   : Fri Oct 27 07:37:54 2017
  Subject: Mojoify control messages for child processes.

Bisect Details
  Configuration: android_nexus5_perf_bisect
  Benchmark    : system_health.memory_mobile
  Metric       : memory:chrome:all_processes:reported_by_chrome:java_heap:effective_size_avg/browse_chrome/browse_chrome_newtab
  Change       : 29.74% | 58385066.6667 -> 75748010.6667

Revision             Result                   N
chromium@512062      58385067 +- 70331.2      6      good
chromium@512090      58341376 +- 201725       6      good
chromium@512104      58410325 +- 210987       6      good
chromium@512111      58363904 +- 121369       6      good
chromium@512114      58429440 +- 157683       6      good
chromium@512115      75757568 +- 397745       6      bad       <--
chromium@512116      75684523 +- 170136       6      bad
chromium@512117      75748011 +- 132525       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=browse.chrome.newtab 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/8964184415641427008


For feedback, file a bug with component Speed>Bisection