All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=776767

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=357c27f0c917b0b97026f469057f81bceb37eead9a8567388b9100dbc11f3abc


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

android-webview-nexus6

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8965206174118741328

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

Suspected Commit
  Author : Eric Karl
  Commit : 840b7a60cc3c5f802ca271bd167e888e7494e8aa
  Date   : Wed Oct 18 22:39:08 2017
  Subject: [Re-Land] Use GPU Discardable in Image Decode Cache

Bisect Details
  Configuration: android_webview_nexus6_aosp_perf_bisect
  Benchmark    : system_health.memory_mobile
  Metric       : memory:webview:all_processes:reported_by_chrome:cc:effective_size_avg/browse_social/browse_social_facebook_infinite_scroll
  Change       : 39.44% | 285227588.667 -> 397726891.333

Revision             Result                     N
chromium@509897      285227589 +- 8130968       6      good
chromium@509900      287041541 +- 13533869      6      good
chromium@509901      285787976 +- 13635755      6      good
chromium@509902      391320539 +- 33579863      6      bad       <--
chromium@509906      396807449 +- 10242024      6      bad
chromium@509915      396348552 +- 22306595      6      bad
chromium@509932      400672922 +- 16728653      6      bad
chromium@509967      397726891 +- 13370462      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-webview --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=browse.social.facebook.infinite.scroll 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/8965206174118741328


For feedback, file a bug with component Speed>Bisection