All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=752531

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=17dd911549a0607a9261f42fa708d9c58aa5bd3de6e1a8fb97c4233c9efe36a8


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

android-nexus6
android-nexus7v2

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8972177968460617296

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

Suspected Commit
  Author : Helen Li
  Commit : 73f7cac54a1108eac07d5c7c3367f979a899a0bd
  Date   : Thu Jul 27 14:57:57 2017
  Subject: [wpr-go] Switch system_health_mobile.json to use go

Bisect Details
  Configuration: android_nexus7_perf_bisect
  Benchmark    : system_health.memory_mobile
  Metric       : memory:chrome:renderer_processes:reported_by_chrome:v8:heap:allocated_objects_size_avg/background_search/background_search_google
  Change       : 12.55% | 7775523.71429 -> 8539588.57143

Revision             Result                  N
chromium@489895      7775524 +- 30693.0      14      good
chromium@489913      7773531 +- 31169.0      14      good
chromium@489922      7774803 +- 32582.9      9       good
chromium@489923      8271313 +- 1161020      6       bad       <--
chromium@489924      8584879 +- 862899       6       bad
chromium@489926      8371648 +- 1046068      6       bad
chromium@489930      8230169 +- 2156989      21      bad
chromium@489964      8539589 +- 1464199      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-chromium --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/8972177968460617296


For feedback, file a bug with component Speed>Bisection