All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=766519

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=c7fa0e4377c53cf67bbbce7908f232f64ddec7853f9fc760f42a35e1bb88ed4c


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

android-one
android-webview-nexus6

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8968031350309702656

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

Suspected Commit
  Author : Eric Karl
  Commit : bc1b89a7d0fd2965b10544651d3be31e77f9ff64
  Date   : Mon Sep 11 20:27:00 2017
  Subject: Revert "Use GPU Discardable in Image Decode Cache"

Bisect Details
  Configuration: android_one_perf_bisect
  Benchmark    : thread_times.key_silk_cases
  Metric       : thread_raster_cpu_time_per_frame/http___jsfiddle.net_xLuvC_1_show_
  Change       : 15.53% | 4.67986240704 -> 5.40649422596

Revision             Result                   N
chromium@500935      4.67986 +- 0.20946       6      good
chromium@500994      4.72559 +- 0.32783       8      good
chromium@501009      4.67009 +- 0.266753      7      good
chromium@501017      4.67254 +- 0.357329      5      good
chromium@501019      4.7584 +- 0.337995       5      good
chromium@501020      5.36857 +- 0.275187      7      bad       <--
chromium@501021      5.392 +- 0.423068        8      bad
chromium@501024      5.47266 +- 0.386516      6      bad
chromium@501053      5.40649 +- 0.400304      5      bad

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=http...jsfiddle.net.xLuvC.1.show. thread_times.key_silk_cases

More information on addressing performance regressions:
  http://g.co/ChromePerformanceRegressions

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8968031350309702656


For feedback, file a bug with component Speed>Bisection