From owner-freebsd-current Thu Mar 30 15:45:29 2000 Delivered-To: freebsd-current@freebsd.org Received: from shell.futuresouth.com (shell.futuresouth.com [198.78.58.28]) by hub.freebsd.org (Postfix) with ESMTP id 2C28437B9CB for ; Thu, 30 Mar 2000 15:45:25 -0800 (PST) (envelope-from fullermd@futuresouth.com) Received: (from fullermd@localhost) by shell.futuresouth.com (8.9.3/8.9.3) id RAA07247; Thu, 30 Mar 2000 17:44:53 -0600 (CST) Date: Thu, 30 Mar 2000 17:44:53 -0600 From: "Matthew D. Fuller" To: Matthew Dillon Cc: Andy Farkas , freebsd-current@FreeBSD.ORG Subject: Re: SMP buildworld times / performance tests Message-ID: <20000330174453.D10480@futuresouth.com> References: <200003300604.WAA68031@apollo.backplane.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Mailer: Mutt 1.0pre3i In-Reply-To: <200003300604.WAA68031@apollo.backplane.com> X-OS: FreeBSD Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG On Wed, Mar 29, 2000 at 10:04:17PM -0800, a little birdie told me that Matthew Dillon remarked > > Ha! I found it. Kirk gets the credit --- softupdates was turned on > in one of the machine's /usr/obj's and off on the other machine's. > > So softupdates improves buildworld times by a significant margin. I've > turned softupdates on on both machines and am rerunning the test. I > expect I will see an improvement closer to what Bob Bishop saw when > he ran the test (7% or so) rather then 20+%. Does softupdates provide faster performance than async/noatime? I keep /usr/src and /usr/obj as such, would it be faster with softupdates? And if so, why? -- Matthew Fuller (MF4839) | fullermd@over-yonder.net Unix Systems Administrator | fullermd@futuresouth.com Specializing in FreeBSD | http://www.over-yonder.net/ "The only reason I'm burning my candle at both ends, is because I haven't figured out how to light the middle yet" To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message