All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=861687

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=52bdd7486251e26f7f63af83c8c3786ca98c9f4f5a6665fb1388ea17acb5353d


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

linux-perf

📍 Pinpoint job started.
https://pinpoint-dot-chromeperf.appspot.com/job/169f9d2aa40000

📍 Found significant differences after each of 4 commits.
https://pinpoint-dot-chromeperf.appspot.com/job/169f9d2aa40000

[array] Revert "Implement Array.p.sort in Torque" by szuend@google.com
https://chromium.googlesource.com/v8/v8/+/f7bad08397d922d7fe0bc10624f517c6f5412595
99.93 → 103.7 (+3.725)

[snapshot] Reduce serialization chunk size to 4K. by hpayer@chromium.org
https://chromium.googlesource.com/v8/v8/+/2265a852b49cc7b2c3f8bd469e711bca46418620
103.5 → No values

Revert "[snapshot] Reduce serialization chunk size to 4K." by machenbach@chromium.org
https://chromium.googlesource.com/v8/v8/+/0ca0e0931f14a59a65b3f164cb379f7650f3e180
No values → 103.3

Update V8 to version 6.9.305. by v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com
https://chromium.googlesource.com/chromium/src/+/ab64cfd20871a861f8a8c139bc262fd6444a116f
103.2 → 102.4 (-0.7403)

Understanding performance regressions:
  http://g.co/ChromePerformanceRegressions

The regression is caused by a revert, nothing to fix.