From owner-freebsd-smp Mon Jul 2 14:14:35 2001 Delivered-To: freebsd-smp@freebsd.org Received: from netbank.com.br (garrincha.netbank.com.br [200.203.199.88]) by hub.freebsd.org (Postfix) with ESMTP id 6071037B401 for ; Mon, 2 Jul 2001 14:14:30 -0700 (PDT) (envelope-from riel@conectiva.com.br) Received: from surriel.ddts.net (1-020.ctame701-1.telepar.net.br [200.181.137.20]) by netbank.com.br (Postfix) with ESMTP id BEA2A4680D; Mon, 2 Jul 2001 18:09:20 -0300 (BRST) Received: from localhost (sntraq@localhost [127.0.0.1]) by surriel.ddts.net (8.11.4/8.11.2) with ESMTP id f62LEJ425400; Mon, 2 Jul 2001 18:14:20 -0300 Date: Mon, 2 Jul 2001 18:14:19 -0300 (BRST) From: Rik van Riel X-X-Sender: To: "E.B. Dreger" Cc: Alfred Perlstein , Julian Elischer , "Michael C . Wu" , Subject: Re: per cpu runqueues, cpu affinity and cpu binding. In-Reply-To: Message-ID: X-spambait: aardvark@kernelnewbies.org X-spammeplease: aardvark@nl.linux.org MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-smp@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org On Mon, 2 Jul 2001, E.B. Dreger wrote: > > Date: Mon, 2 Jul 2001 14:11:13 -0500 > > From: Alfred Perlstein > > > > As a side issue I plan on NOT ALLOWING multiple KSEs (thread > > > carriers?) from the same thread group in the same process to be on the > > > same processor. SO load balancing and processor affinity will not > > > apply to the thread-carrying entities (KSEs). Of course the userland > > Why force things? Again, going back to affinity hinting... IMHO affinity hinting should be just that. Anything more is likely to be a solution in search of a problem ;) [yes, there are a few special cases where it may help, but it would be a bit early in the SMPng project to start worrying about those when there are more serious issues to fix ... such as locks which are known to give contention ;)] regards, Rik -- Virtual memory is like a game you can't win; However, without VM there's truly nothing to lose... http://www.surriel.com/ http://distro.conectiva.com/ Send all your spam to aardvark@nl.linux.org (spam digging piggy) To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-smp" in the body of the message