All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=686166

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgsK2PpgsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg8P7loAkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgsK-csgoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg8JrJuQoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgsLzLqAoM


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

android-nexus5X
android-nexus6

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8989287281717415120

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

Hi warx@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 : warx
  Commit : 7ca1c566e7af0996087c949dae38bfc7af908a37
  Date   : Wed Jan 25 10:14:28 2017
  Subject: Revert of Make MappedFile (aka OnDisk) the default for persistent histograms. (patchset #2 id:20001 of https://codereview.chromium.org/2647353003/ )

Bisect Details
  Configuration: android_nexus6_perf_bisect
  Benchmark    : system_health.memory_mobile
  Metric       : memory:chrome:all_processes:reported_by_os:system_memory:native_heap:proportional_resident_size_avg/load_search/load_search_ebay
  Change       : 1.18% | 31208206.8571 -> 31575497.7778

Revision             Result                   N
chromium@445960      31208207 +- 1119815      14      good
chromium@445978      31098314 +- 435989       9       good
chromium@445987      31311338 +- 1009846      14      good
chromium@445990      31279009 +- 650708       14      good
chromium@445991      31357784 +- 1205235      14      good
chromium@445992      31545981 +- 857592       14      bad       <--
chromium@445996      31575498 +- 592852       9       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=load.search.ebay system_health.memory_mobile

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8989287281717415120

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=6131708551757824


| O O | Visit http://www.chromium.org/developers/speed-infra/perf-bug-faq
|  X  | for more information addressing perf regression bugs. For feedback,
| / \ | file a bug with component Tests>AutoBisect.  Thank you!

This bug has an owner, but was in a state that our triage picked up. Marking as Assigned.

I think this CL will soon be relanded, right?

I'm going to wait until Monday when everybody is around in case there are other unexpected problems.

Revert of revert has been submitted.