From: Eric Wong <normalperson@...>
Date: 2015-04-27T16:41:22+00:00
Subject: [ruby-core:69000] Re: [Ruby trunk - Bug #11101] [Open] Forking is killing my memory when running GC

Is this with or without jemalloc?
In either case, try disabling transparent hugepages in Linux, THP causes
some problems with Postgres and Redis forking, too (it is far easier to
dirty and trigger CoW on 2M hugepages than regular 4K pages).