All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=750848

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=b7a88623ef70c19d40f11cdc0a4ca19478da5cd647af38c7d1b2b66e9655acf6


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

chromium-rel-win7-dual
chromium-rel-win7-x64-dual
chromium-rel-win8-dual

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8972521686840958960

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

Suspected Commit
  Author : Florin Malita
  Commit : 8d4d7f4ddabcf5281d5ac7776233570e409d6d3b
  Date   : Mon Jul 24 20:06:05 2017
  Subject: Enable Skia's raster-pipeline radial gradient impl

Bisect Details
  Configuration: win_perf_bisect
  Benchmark    : smoothness.tough_canvas_cases
  Metric       : frame_times/tough_canvas_cases_rendering_throughput_bouncing_svg_images.html
  Change       : 20.95% | 117.668434042 -> 142.320128571

Revision             Result                  N
chromium@488994      117.668 +- 7.42353      6      good
chromium@489043      116.866 +- 6.4528       6      good
chromium@489056      117.264 +- 3.42249      6      good
chromium@489058      116.467 +- 2.20876      6      good
chromium@489059      139.503 +- 4.88391      6      bad       <--
chromium@489062      139.832 +- 4.65022      6      bad
chromium@489068      139.364 +- 4.44354      6      bad
chromium@489092      142.32 +- 3.10711       6      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=tough.canvas.cases.rendering.throughput.bouncing.svg.images.html smoothness.tough_canvas_cases

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8972521686840958960


For feedback, file a bug with component Speed>Bisection