All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=788333

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=a42ef3c293ccaffb563638a7bd0d8a5d92751851f8ddff682f8ebf0f262cba2d


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

android-nexus5X

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8962048070076224816

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

Hi hans@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 : Hans Wennborg
  Commit : 85023f0253e73844e0bdf00f134ddbeeae057aed
  Date   : Tue Nov 21 15:27:34 2017
  Subject: Roll clang 317263:318667.

Bisect Details
  Configuration: android_nexus5X_perf_bisect
  Benchmark    : rasterize_and_record_micro.top_25
  Metric       : rasterize_time/file___static_top_25_pinterest.html
  Change       : 4.30% | 5.74116666667 -> 5.98783333333

Revision             Result                    N
chromium@518212      5.74117 +- 0.0961084      6      good
chromium@518242      5.7455 +- 0.034402        6      good
chromium@518257      5.74417 +- 0.0497879      6      good
chromium@518258      5.99983 +- 0.0324166      6      bad       <--
chromium@518259      5.984 +- 0.0388587        6      bad
chromium@518261      5.98517 +- 0.0427649      6      bad
chromium@518264      5.96867 +- 0.0553474      6      bad
chromium@518271      5.98783 +- 0.0556132      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=file...static.top.25.pinterest.html rasterize_and_record_micro.top_25

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8962048070076224816


For feedback, file a bug with component Speed>Bisection

 Issue 788396  has been merged into this issue.

 Issue 788406  has been merged into this issue.

Perf report for the roll: https://chromeperf.appspot.com/group_report?rev=518258
So far it looks like these issues are wontfix.

 Issue 788393  has been merged into this issue.

 Issue 788392  has been merged into this issue.