All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=692961

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgmJfb_gkM


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

android-webview-nexus5X

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8987514551936086928

=== Auto-CCing suspected CL author chrishtr@chromium.org ===

Hi chrishtr@chromium.org, the bisect results pointed to your CL, please take a look at the
results.


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

Suspected Commit
  Author : chrishtr
  Commit : 56850c99e856e368af5f440d75d8e8bdb13608f1
  Date   : Sun Feb 12 22:30:57 2017
  Subject: [SPInvalidation] Use GeometryMapper in PaintLayerClipper for paint.

Bisect Details
  Configuration: android_webview_arm64_aosp_perf_bisect
  Benchmark    : smoothness.sync_scroll.key_mobile_sites_smooth
  Metric       : frame_times/http___www.theverge.com_2012_10_28_3568746_amazon-7-inch-fire-hd-ipad-mini-ad-ballsy
  Change       : 1.92% | 16.6127899406 -> 16.9320745077

Revision             Result                     N
chromium@449898      16.6128 +- 0.0448954       6      good
chromium@449899      16.9299 +- 0.0388162       6      bad       <--
chromium@449900      16.9426 +- 0.00402248      6      bad
chromium@449901      16.9477 +- 0.103028        6      bad
chromium@449904      16.9321 +- 0.0415373       6      bad

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=http...www.theverge.com.2012.10.28.3568746.amazon.7.inch.fire.hd.ipad.mini.ad.ballsy smoothness.sync_scroll.key_mobile_sites_smooth

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8987514551936086928

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=6391170764111872


| O O | Visit http://www.chromium.org/developers/speed-infra/perf-bug-faq
|  X  | for more information addressing perf regression bugs. For feedback,
| / \ | file a bug with component Speed>Bisection.  Thank you!

I'm actively working on this regression.

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8983860368427550608

=== BISECT JOB RESULTS ===
NO Perf regression found

Bisect Details
  Configuration: android_webview_arm64_aosp_perf_bisect
  Benchmark    : smoothness.sync_scroll.key_mobile_sites_smooth
  Metric       : frame_times/http___www.theverge.com_2012_10_28_3568746_amazon-7-inch-fire-hd-ipad-mini-ad-ballsy

Revision             Result                   N
chromium@452438      16.849 +- 0.187539       21      good
chromium@452645      16.8148 +- 0.237499      21      bad

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=http...www.theverge.com.2012.10.28.3568746.amazon.7.inch.fire.hd.ipad.mini.ad.ballsy smoothness.sync_scroll.key_mobile_sites_smooth

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8983860368427550608

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5906882004254720


| O O | Visit http://www.chromium.org/developers/speed-infra/perf-bug-faq
|  X  | for more information addressing perf regression bugs. For feedback,
| / \ | file a bug with component Speed>Bisection.  Thank you!

Perf has recovered.