DragonFlyBSD's Meltdown Fix Causing More Slowdowns Than Linux
Written by Michael Larabel in Operating Systems on 7 January 2018 at 04:06 PM EST. Page 4 of 5. 37 Comments.
In a few of the CPU benchmarks, there were small performance recessions as a result of this Meltdown vulnerability fix.
GraphicsMagick appears particularly affected by machdep.isolated_user_pmap. It's not too dramatic, but still measurable.
The timed compilation process is also a tiny bit slower now.