From owner-freebsd-hackers Wed Aug 20 16:25:36 1997 Return-Path: Received: (from root@localhost) by hub.freebsd.org (8.8.5/8.8.5) id QAA15656 for hackers-outgoing; Wed, 20 Aug 1997 16:25:36 -0700 (PDT) Received: from phaeton.artisoft.com (phaeton.Artisoft.COM [198.17.250.50]) by hub.freebsd.org (8.8.5/8.8.5) with SMTP id QAA15650 for ; Wed, 20 Aug 1997 16:25:30 -0700 (PDT) Received: (from terry@localhost) by phaeton.artisoft.com (8.6.11/8.6.9) id QAA21163; Wed, 20 Aug 1997 16:17:28 -0700 From: Terry Lambert Message-Id: <199708202317.QAA21163@phaeton.artisoft.com> Subject: Re: threads? To: perlsta@sunyit.edu (Alfred Perlstein) Date: Wed, 20 Aug 1997 16:17:28 -0700 (MST) Cc: hackers@FreeBSD.ORG In-Reply-To: from "Alfred Perlstein" at Aug 20, 97 01:41:44 am X-Mailer: ELM [version 2.4 PL24] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-freebsd-hackers@FreeBSD.ORG X-Loop: FreeBSD.org Precedence: bulk > i recently ssaw a flurry of questions relating to threads on the 3.0 smp > system, can you split threads among processors? or will they all be bound > to the same CPU? "Can you now" and "will you be able to" are two different questions. I know John Dyson has kernel threads, and they will work between processors; you can ask him for his "magic user space pieces" or wait for a checking of some kind, either way. I'm sure he'd love informed commentary on the code... "Can you now" is a definite "no", without John's stuff. I don't know whether he is attacking this as a cooperative scheduler, but the rume is that he is. If so, there are CPU affinitiy issues that may ned addressing... Terry Lambert terry@lambert.org --- Any opinions in this posting are my own and not those of my present or previous employers.