All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=740443

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=7bdad77c87dcda29c4badbb870f850d672fe89edbd36610efc2dfa027edc67f8


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

android-nexus6

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8974476323018300960

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

Suspected Commit
  Author : Yutaka Hirano
  Commit : 84047549ac37bab70d7306566c912e59131f3e1f
  Date   : Mon Jun 19 04:16:15 2017
  Subject: [Loading] Save one post-task when the data pipe is ready on arrival

Bisect Details
  Configuration: android_nexus6_perf_bisect
  Benchmark    : system_health.memory_mobile
  Metric       : memory:chrome:all_processes:reported_by_chrome:cc:effective_size_avg/background_search/background_search_google
  Change       : 30.81% | 48763530.6667 -> 33740768.0

Revision             Result                   N
chromium@480312      48763531 +- 435128       6      good
chromium@480329      48720523 +- 452433       6      good
chromium@480338      48637920 +- 0.0          6      good
chromium@480340      48700725 +- 343999       6      good
chromium@480341      48771723 +- 464807       6      good
chromium@480342      32543371 +- 2828333      6      bad       <--
chromium@480346      32511968 +- 2076854      6      bad
chromium@480379      33740768 +- 2086429      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=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/8974476323018300960


For feedback, file a bug with component Speed>Bisection