Date: Wed, 11 Aug 1999 20:06:49 -0400 (EDT) From: Terence Kelly <tpkelly@eecs.umich.edu> To: freebsd-questions@FreeBSD.ORG Subject: big RAM & pthreads on FreeBSD Message-ID: <Pine.GSU.4.05.9908112000270.23952-100000@krusty.eecs.umich.edu>
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I'm considering replacing Linux with FreeBSD on a
computer I use, but first I have a few questions.
(I searched the man pages and FAQ available at
your Web site, but didn't find answers.)
1. My 4-CPU machine has 2 GB of RAM. Does the
latest stable SMP kernel support that much
memory? In other words, can a single
user-level process access all of that RAM?
(I write memory-intensive simulation code
and I can't afford to page/swap.)
2. Does the SMP kernel support multithreading
in roughly the same way as Solaris, Linux,
etc. via POSIX threads? I'm accustomed to
a programming model in which the OS
automagically assigns pthreads to processors
and the threads run concurrently. My pthreaded
code does what I expect on IRIX, Solaris, and
Linux. Will I get the same general behavior
from FreeBSD?
Thanks in advance for your help!
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