All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=791996

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=5f2e1ff09a606e15302dc3b01c7f8cd6541b338b9db77d52f0ce88dfe1058224


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

android-one
chromium-rel-mac-retina
chromium-rel-mac11-air
chromium-rel-mac11-pro
chromium-rel-mac12
chromium-rel-mac12-mini-8gb
chromium-rel-win7-gpu-ati

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8961040309576787088

=== BISECT JOB RESULTS ===
Bisect was unable to run to completion

Error: INFRA_FAILURE

The bisect was able to narrow the range, you can try running with:
  good_revision: 65e949b09c49e1eb6b929caa2346913e1e50b733
  bad_revision : 71a2e331ff5347ad0b4cdaa27f9b40e1fb23464c

If failures persist contact the team (see below) and report the error.


Bisect Details
  Configuration: android_one_perf_bisect
  Benchmark    : blink_perf.shadow_dom
  Metric       : v0-large-distribution-without-layout/v0-large-distribution-without-layout

Revision             Result                   N
chromium@520047      34.8431 +- 1.093         7      good
chromium@520068      42.8447 +- 1.73313       6      bad
chromium@520088      42.2737 +- 0.746953      6      bad
chromium@520129      42.0955 +- 2.04668       6      bad

Please refer to the following doc on diagnosing blink_perf regressions:
  https://chromium.googlesource.com/chromium/src/+/master/docs/speed/benchmark_harnesses/blink_perf.md

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 blink_perf.shadow_dom

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8961040309576787088


For feedback, file a bug with component Speed>Bisection

📍 Pinpoint job started.
https://pinpoint-dot-chromeperf.appspot.com/job/128eef64040000

😿 Pinpoint job stopped with an error.
https://pinpoint-dot-chromeperf.appspot.com/job/128eef64040000

📍 Pinpoint job started.
https://pinpoint-dot-chromeperf.appspot.com/job/14da66c4040000

😿 Pinpoint job stopped with an error.
https://pinpoint-dot-chromeperf.appspot.com/job/14da66c4040000

This recovered.

+dtu, simonhatch, FYI on the pinpoint errors. These are pretty old, but I assume they were addressed?

Believe the first failed with https://github.com/catapult-project/catapult/issues/3921 which was fixed in December, and the 2nd is the gitiles issue that was fixed last week. Dave, is that right?