All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=685671

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg8Ky4qgsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg8MyB7AsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg0KWI-wsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg8KydrgsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgsOy59wgM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg8KydrgkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgsLni8gsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgsIPp8AkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgsIXCnAoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgsLysrwoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgsMi5wggM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg0If2mQgM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgsMi5ggsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgsJmDgAoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg0NuGnwgM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgsJHBsgsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgsNnB1QgM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg0PuhlgsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgsJHBsgkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg0L2pjgkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgsIztmwoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgsKqJvwsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgsPu88AgM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgsJGV6wgM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgsK79sgkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg0O_W6wsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgsLW6rgoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg0P-8uAsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgsNPArgoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgsMHk-QgM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgsP268wkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgsPmz-QoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgsO-O8QkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgsK79sgoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgsIztmwgM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgsOLb-QsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg0Nv_2AkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg0K_z7QoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgsMHkuQsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgsPmv5AoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgsLbUugsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgsLWstwoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgsNaCjAkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg0PvfgAsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgsPSvjAkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg0OG48woM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgsK7powoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg0MWugwsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgsPuooQsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg0I-14gsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg8Kz7vwoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg0NuR_gsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgsI7D5ggM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgsN2R9gkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgsMaS-gsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgsPuooQkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgsKzohQoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg0OGimgoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgsKLF5ggM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg8MyB7AkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg0M-E-woM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg0P3llAsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgsNnBlQsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgsOzX_wgM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg0L3d7woM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgsOud6woM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgsIr2sQsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg0IeSyAkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgsNWkrAkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgsNaYlQgM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgsIbf8gkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgsLXwpgoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgsLGMpAoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgsL_-9AgM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgsOyj7ggM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgsLvAswkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg8JjruAoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgsOXy6wgM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgsK-r9ggM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgsMXe7gkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg8OjXtwkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgsIeusgoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgsJPbtwoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgsOuH-goM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg0IeSyAoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgsLbA6wgM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg0MOg9wkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg0KHv4gkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgsIP24QgM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgsM61qQsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgsOaHlggM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg8JjIrgsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgsKzohQgM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgsNXnuwoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg8Jj1qQoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgsNLc1ggM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgsMPzsgkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgsMPM9AoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgsJuq7wsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg0NuNkAgM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgsJP8swkM,ag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Bot(s) for this bug's original alert(s):

android-nexus5X

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8989385343311571488

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

Suspected Commit
  Author : ericrk
  Commit : 4c759d5e287eda60b6ce8708ca40a22be6436800
  Date   : Wed Jan 25 23:20:21 2017
  Subject: Temporarily disable context idle cleanup.

Bisect Details
  Configuration: android_nexus5X_perf_bisect
  Benchmark    : system_health.memory_mobile
  Metric       : memory:chrome:all_processes:reported_by_chrome:skia:effective_size_avg/load_media/load_media_google_images
  Change       : 26496.57% | 50132.0 -> 13333394.0

Revision             Result               N
chromium@446117      50132.0 +- 0.0       6      good
chromium@446143      50132.0 +- 0.0       6      good
chromium@446156      50132.0 +- 0.0       6      good
chromium@446159      50132.0 +- 0.0       6      good
chromium@446160      50132.0 +- 0.0       6      good
chromium@446161      13333394 +- 0.0      6      bad       <--
chromium@446162      13333394 +- 0.0      6      bad
chromium@446168      13333394 +- 0.0      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=load.media.google.images system_health.memory_mobile

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8989385343311571488

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=4634169956630528


| 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!