From owner-freebsd-hackers Tue Feb 20 18:51:14 2001 Delivered-To: freebsd-hackers@freebsd.org Received: from sdmail0.sd.bmarts.com (sdmail0.sd.bmarts.com [192.215.234.86]) by hub.freebsd.org (Postfix) with SMTP id EA20237B401 for ; Tue, 20 Feb 2001 18:51:11 -0800 (PST) (envelope-from gordont@bluemtn.net) Received: (qmail 22660 invoked by uid 1078); 21 Feb 2001 02:51:09 -0000 Received: from localhost (sendmail-bs@127.0.0.1) by localhost with SMTP; 21 Feb 2001 02:51:09 -0000 Date: Tue, 20 Feb 2001 18:51:09 -0800 (PST) From: Gordon Tetlow X-X-Sender: To: Cc: Dan Phoenix , Subject: Re: qmail IO--qmail vs postfix competition In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG On Tue, 20 Feb 2001 scanner@jurai.net wrote: > Aha. That explains it. You use HW raid. I wondered why you were > only doing 4 million mails for *30* boxes. Dan, is doing 500K, on a > completely idle box (cpu/ram/I/O wise), with vinum, Postfix, and RAID-0. > Have you seen brad knowles papers on vinum vs HW raid? It's erm > enlightening to say the least :) Id be happy to dig up the URL if you are > interested. I personally will be using Vinum from now on. The performance > is very impressive. Well, as I said, these boxes are rather bored. I don't think the load reaches above 0.05. Most of the time is delivering mail trying to negotiate with destination hosts. I don't think that the mailers are IO bound, but I haven't really looked to find out to tell you the truth. Once the mailers are set up we treat them as black boxes. They just work. Also, the 500K number, is that per day? The 4 million was in 4 hours, not a day. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message