All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=751154

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=c2c3adb03bf7609085343644a19ff80a7b5602b104b62b6791094c058339d906


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

linux-release

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8972445901410829888

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

Suspected Commit
  Author : Florin Malita
  Commit : 2a27a8ddae522a22a22e0aadf56399537b695df1
  Date   : Tue Jul 18 17:13:13 2017
  Subject: Enable Skia's integral-translate bilerp optimization

Bisect Details
  Configuration: linux_perf_bisect
  Benchmark    : thread_times.tough_scrolling_cases
  Metric       : thread_raster_cpu_time_per_frame/canvas_05000_pixels_per_second
  Change       : 23.45% | 0.684325171292 -> 0.844776867514

Revision             Result                     N
chromium@487410      0.684325 +- 0.259307       9       good
chromium@487494      0.689194 +- 0.121569       9       good
chromium@487505      0.670118 +- 0.306378       9       good
chromium@487506      0.706688 +- 0.0562606      6       good
chromium@487507      0.915103 +- 0.100112       6       bad       <--
chromium@487508      0.86251 +- 0.350052        9       bad
chromium@487510      0.871923 +- 0.0940911      6       bad
chromium@487515      0.894044 +- 0.0515273      6       bad
chromium@487536      0.876467 +- 0.514208       14      bad
chromium@487577      0.82744 +- 0.327054        9       bad
chromium@487743      0.886616 +- 0.152494       6       bad
chromium@488076      0.884054 +- 0.159067       6       bad
chromium@488741      0.844777 +- 0.21825        9       bad

To Run This Test
  src/tools/perf/run_benchmark -v --browser=release --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=canvas.05000.pixels.per.second thread_times.tough_scrolling_cases

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8972445901410829888


For feedback, file a bug with component Speed>Bisection