Re: Linux v.s. Mac OS-X Performance

Scott Ribe <scott_ribe@killerbytes.com>

From: Scott Ribe <scott_ribe@killerbytes.com>
To: pgsql general <pgsql-general@postgresql.org>
Date: 2007-11-28T03:05:04Z
Lists: pgsql-general
> Kind of.  Mach is still running underneath (and a lot of the app APIs
> use it directly) but there is a BSD 'personality' above it which
> (AIUI) is big parts of FreeBSD ported to run on Mach.

Right. Also, to be clear, OS X is not a true microkernel architecture. They
took the "division of responsibilities" from the Mach microkernel design,
but Mach is compiled into the kernel and is not a separate process from the
kernel.

-- 
Scott Ribe
scott_ribe@killerbytes.com
http://www.killerbytes.com/
(303) 722-0567 voice