All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=782222

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=c3cc6c62d1122f0fd966919e8e6d652aaa8d021c0e6c58cc24968f3873f2cc4b


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

chromium-rel-win8-dual
linux-release

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8963580093951321360

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

Hi bmeurer@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 : Benedikt Meurer
  Commit : 1b9e9bb9abeb58135364db117b185d81c6cb5a87
  Date   : Fri Nov 03 19:51:06 2017
  Subject: Revert "Disable --string-slices."

Bisect Details
  Configuration: win_8_perf_bisect
  Benchmark    : v8.runtimestats.browsing_desktop
  Metric       : v8-gc-total_max/browse_search/browse_search_google_india
  Change       : 58.09% | 9.14471428571 -> 3.83277777778

Revision                           Result                   N
chromium@514052                    9.14471 +- 11.104        14      good
chromium@514052,v8@4f781ecabf      9.369 +- 5.42036         6       good
chromium@514052,v8@1b9e9bb9ab      3.6535 +- 1.42375        6       bad       <--
chromium@514052,v8@f3bfe56590      3.48733 +- 0.414315      6       bad
chromium@514052,v8@5dc02ef2b8      3.9805 +- 1.47491        6       bad
chromium@514053                    3.74283 +- 1.79026       6       bad
chromium@514054                    3.737 +- 0.877092        6       bad
chromium@514056                    3.83278 +- 1.2448        9       bad

To Run This Test
  src/tools/perf/run_benchmark -v --browser=release --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=browse.search.google.india v8.runtimestats.browsing_desktop

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8963580093951321360


For feedback, file a bug with component Speed>Bisection

Interesting.