From owner-freebsd-fs Thu Mar 22 12:28:57 2001 Delivered-To: freebsd-fs@freebsd.org Received: from peorth.iteration.net (peorth.iteration.net [208.190.180.178]) by hub.freebsd.org (Postfix) with ESMTP id 3F1A837B71C; Thu, 22 Mar 2001 12:28:53 -0800 (PST) (envelope-from keichii@peorth.iteration.net) Received: by peorth.iteration.net (Postfix, from userid 1001) id B902B59293; Thu, 22 Mar 2001 14:28:52 -0600 (CST) Date: Thu, 22 Mar 2001 14:28:52 -0600 From: "Michael C . Wu" To: fs@FreeBSD.ORG, hackers@FreeBSD.ORG Subject: Re: tuning a VERY heavily (30.0) loaded s cerver Message-ID: <20010322142852.A19619@peorth.iteration.net> Reply-To: "Michael C . Wu" References: <200103211114.f2LBE0h57371@mobile.wemm.org> <20010321120620.A932@peorth.iteration.net> <200103211817.f2LIHR416007@earth.backplane.com> <20010321102836.N12319@fw.wintelcom.net> <200103211907.f2LJ7cp17933@earth.backplane.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5i In-Reply-To: <200103211907.f2LJ7cp17933@earth.backplane.com>; from dillon@earth.backplane.com on Wed, Mar 21, 2001 at 11:07:38AM -0800 X-PGP-Fingerprint: 5025 F691 F943 8128 48A8 5025 77CE 29C5 8FA1 2E20 X-PGP-Key-ID: 0x8FA12E20 Sender: owner-freebsd-fs@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org Just an update on the lovely loaded BBS server. We made our record-breaking number of users last night. After implementing the changes suggested, and kqueue'ifying the BBS daemon. We saw a dramatic increase in server power. Top number of users was 4704 users. Serving SSH, HTTP, SMTP, innd, BBSD with no delays. (Meanwhile, we had kernel profiling ON :) ) We had peak load averages of 100.0, read: no delay. I am certain that we could taken on 6000 users had we had that many users. (It died due to unrelated reason, not because of the load since the number of users had gone down to 4400.) iostat became a fraction of what it used to be before we set vfs.vmiodirenable=1. (Why is vfs.vmiodirenable=1 not enabled by default?) We used to die at about 4200 users with average loads of 200.0 even 300.0 For those still interested in kq'ed BBSD stats: http://zoo.ee.ntu.edu.tw/~keichii I'm ponder if this should have been posted to FreeBSD-Advocacy. :^) -- +-----------------------------------------------------------+ | keichii@iteration.net | keichii@freebsd.org | | http://iteration.net/~keichii | Yes, BSD is a conspiracy. | +-----------------------------------------------------------+ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-fs" in the body of the message