From owner-freebsd-questions Wed Aug 11 17: 8:15 1999 Delivered-To: freebsd-questions@freebsd.org Received: from krusty.eecs.umich.edu (krusty.eecs.umich.edu [141.213.12.25]) by hub.freebsd.org (Postfix) with ESMTP id CF89215674 for ; Wed, 11 Aug 1999 17:08:08 -0700 (PDT) (envelope-from tpkelly@eecs.umich.edu) Received: from localhost (tpkelly@localhost) by krusty.eecs.umich.edu (8.9.2/8.9.2) with ESMTP id UAA24239 for ; Wed, 11 Aug 1999 20:06:53 -0400 (EDT) Date: Wed, 11 Aug 1999 20:06:49 -0400 (EDT) From: Terence Kelly Reply-To: tpkelly@eecs.umich.edu To: freebsd-questions@FreeBSD.ORG Subject: big RAM & pthreads on FreeBSD Message-ID: Favorite-Wine: Bully Hill MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG 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! To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message