All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=755305

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=91bfbb8452e58708220bb59888defa486d8f90a57a227387c0f950c4b7f1224d


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

android-one

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8971252326163609136

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

Suspected Commit
  Author : Xida Chen
  Commit : ea20f077cb3981dce10270048decfab2a33e9fcd
  Date   : Thu Aug 10 22:21:06 2017
  Subject: Enable Waterfall testing for reduced soft tile memory experiment

Bisect Details
  Configuration: android_one_perf_bisect
  Benchmark    : thread_times.key_silk_cases
  Metric       : thread_GPU_cpu_time_per_frame/http___jsfiddle.net_vBQHH_11_show_
  Change       : 30.63% | 20.5022577271 -> 26.7822937649

Revision             Result                   N
chromium@493555      20.5023 +- 1.82865       6      good
chromium@493557      19.8823 +- 0.908301      6      good
chromium@493558      27.3924 +- 3.04811       6      bad       <--
chromium@493559      26.8809 +- 0.334367      6      bad
chromium@493563      26.8146 +- 0.402367      6      bad
chromium@493571      26.8344 +- 0.363717      6      bad
chromium@493586      26.9988 +- 0.467409      6      bad
chromium@493616      26.8358 +- 0.396379      6      bad
chromium@493676      26.7823 +- 0.448308      6      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.vBQHH.11.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/8971252326163609136


For feedback, file a bug with component Speed>Bisection