All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=766577

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=0ebf9eb412f70afd912bf4861914c43a1ab8bedba133377a26f2237bb3e0675b


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

android-nexus7v2
android-webview-nexus6

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8968030411509323536

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

Hi mtklein@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 : Mike Klein
  Commit : 7a620575b0512b33708e723c260fe66b90b5b103
  Date   : Sat Sep 16 02:20:04 2017
  Subject: Revert "Reland "zlib: inflate using wider loads and stores""

Bisect Details
  Configuration: android_nexus7_perf_bisect
  Benchmark    : thread_times.key_mobile_sites_smooth
  Metric       : thread_raster_cpu_time_per_frame/http___slashdot.org_
  Change       : 6.17% | 0.756969966159 -> 0.803735703169

Revision             Result                     N
chromium@502412      0.75697 +- 0.0152346       6      good
chromium@502444      0.742178 +- 0.015527       6      good
chromium@502460      0.756975 +- 0.0274131      9      good
chromium@502468      0.76908 +- 0.0574859       9      good
chromium@502472      0.755476 +- 0.0360821      6      good
chromium@502473      0.728129 +- 0.0318389      6      good
chromium@502474      0.819305 +- 0.0585636      6      bad       <--
chromium@502476      0.803736 +- 0.0451302      9      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=http...slashdot.org. thread_times.key_mobile_sites_smooth

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8968030411509323536


For feedback, file a bug with component Speed>Bisection

This reverted bad code.

 Issue 766573  has been merged into this issue.

 Issue 766576  has been merged into this issue.