All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=772285

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=96d509060155229560f5a45cef1f24fd7669be670c68ae3b1d260afc08444c11


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

android-nexus5
android-nexus5X
android-nexus6
android-nexus7v2

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8966510261208383696

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

Suspected Commit
  Author : Benedikt Meurer
  Commit : 08db4d7652967c1ed12450a73ff53f5d6bbf1fdf
  Date   : Mon Oct 02 12:35:05 2017
  Subject: [ic] Properly handle polymorphic symbol accesses.

Bisect Details
  Configuration: android_nexus5_perf_bisect
  Benchmark    : v8.runtimestats.browsing_mobile
  Metric       : IC:duration_avg/browse_shopping/browse_shopping_avito
  Change       : 297.68% | 2414.17916667 -> 9600.82116667

Revision                           Result                  N
chromium@505568                    2414.18 +- 95.3681      6      good
chromium@505654                    2384.52 +- 94.386       6      good
chromium@505697                    2378.45 +- 47.3615      6      good
chromium@505719                    2390.02 +- 41.307       5      good
chromium@505730                    2394.53 +- 41.1231      6      good
chromium@505731                    2407.62 +- 107.205      6      good
chromium@505731,v8@08db4d7652      9510.76 +- 1178.97      6      bad       <--
chromium@505731,v8@17d86d76fb      9630.59 +- 1687.8       6      bad
chromium@505731,v8@1fa0f9ba4c      9457.05 +- 1996.65      6      bad
chromium@505732                    9872.81 +- 681.082      6      bad
chromium@505733                    9932.51 +- 710.826      6      bad
chromium@505735                    9595.59 +- 1011.95      6      bad
chromium@505740                    9600.82 +- 881.333      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=browse.shopping.avito v8.runtimestats.browsing_mobile

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8966510261208383696


For feedback, file a bug with component Speed>Bisection