From owner-freebsd-sparc Mon Feb 3 14:52:25 2003 Delivered-To: freebsd-sparc@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 7A2DA37B401 for ; Mon, 3 Feb 2003 14:52:24 -0800 (PST) Received: from espresso.q9media.com (espresso.q9media.com [65.39.129.122]) by mx1.FreeBSD.org (Postfix) with ESMTP id E775743F9B for ; Mon, 3 Feb 2003 14:52:23 -0800 (PST) (envelope-from mike@espresso.q9media.com) Received: by espresso.q9media.com (Postfix, from userid 1002) id AA5169C5D; Mon, 3 Feb 2003 17:40:24 -0500 (EST) Date: Mon, 3 Feb 2003 17:40:24 -0500 From: Mike Barcroft To: Jake Burkholder Cc: Garance A Drosihn , sparc64@FreeBSD.ORG Subject: Re: SMP and Sparc64 Message-ID: <20030203174024.F15651@espresso.q9media.com> References: <20030203172739.C2837@locore.ca> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20030203172739.C2837@locore.ca>; from jake@locore.ca on Mon, Feb 03, 2003 at 05:27:39PM -0500 Organization: The FreeBSD Project Sender: owner-freebsd-sparc@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org Jake Burkholder writes: > Apparently, On Mon, Feb 03, 2003 at 05:20:51PM -0500, > Garance A Drosihn said words to the effect of; > > > I notice the GENERIC kernel for the sparc64 port has SMP support > > turned on. I also vaguely remember some comment somewhere that > > indicated this was intentional. Is it a bad idea to comment out > > those lines on sparc64 kernels? > > Doesn't make much difference. There's a very small performance improvement > for removing it on a UP system, but I doubt its measurable. This might become an issue in the future with sched_ule, since it has SMP conditional code that does affect performance. Best regards, Mike Barcroft To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-sparc" in the body of the message