From owner-freebsd-net@FreeBSD.ORG Wed Aug 3 03:54:20 2005 Return-Path: X-Original-To: freebsd-net@freebsd.org Delivered-To: freebsd-net@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 643D516A41F for ; Wed, 3 Aug 2005 03:54:20 +0000 (GMT) (envelope-from dave-sender-1932b5@seddon.ca) Received: from seddon.ca (seddon.ca [203.209.212.18]) by mx1.FreeBSD.org (Postfix) with SMTP id A2E0343D46 for ; Wed, 3 Aug 2005 03:54:19 +0000 (GMT) (envelope-from dave-sender-1932b5@seddon.ca) Received: (qmail 96022 invoked by uid 89); 3 Aug 2005 03:54:18 -0000 Received: by seddon.ca (tmda-sendmail, from uid 89); Wed, 03 Aug 2005 13:54:18 +1000 (EST) References: <1123040973.95445.TMDA@seddon.ca> <20050803035141.GC92364@hub.freebsd.org> In-Reply-To: <20050803035141.GC92364@hub.freebsd.org> To: freebsd-net@freebsd.org Date: Wed, 03 Aug 2005 13:54:16 +1000 Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8"; format=flowed Content-Transfer-Encoding: 7bit From: Dave+Seddon Message-ID: <1123041258.96004.TMDA@seddon.ca> X-Delivery-Agent: TMDA/1.0.3 (Seattle Slew) Subject: Re: running out of mbufs? X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 03 Aug 2005 03:54:20 -0000 So as for the system losing all network connectivity, do you have any suggestions? regards, Dave Kris Kennaway writes: > On Wed, Aug 03, 2005 at 01:49:32PM +1000, Dave+Seddon wrote: >> Greetings, >> >> I'm trying to do some performance testing of a content filtering system, so >> I'm trying to get very high HTTP throughput. I've got 4 * HP DL380s with >> 3.4G Xeon processors (hyper threading) and 1 G RAM, 2 onboard BGEs, and 2 * >> 2 port EM. Using FreeBSD5.4-stable (as of 2005/08/02) and device polling, >> I've configured a large number (246) VLAN interfaces on two machines, and >> have apache on one box and siege on the other. Using 'siege -f >> /home/my_big_list_of_urls -c 50 --internet' one host does a large number of >> request from the other machine. I've been trying to tune for maximum >> performance and have been using lots of examples for /etc/sysctl.conf and so >> on from the web. Adjusting these settings and running the siege, I've found >> the apache server completely loses network connectivity when device polling >> is enabled. I've adjusted the HZ lots and found the system survives the >> longest set a 15000 (yes it seems very large doesn't it). The problem now >> seems to be that I'm running out of mbufs: >> >> -------------------------------------- >> 4294264419 mbufs in use >> 4294866740/2147483647 mbuf clusters in use (current/max) > > This is a FAQ..see the release errata. The short answer is that it's > not a real leak, only a leak in the stats. This is fixed in 7.0 and > might be fixed in 6.0-RELEASE. > > Kris > _______________________________________________ > freebsd-net@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-net > To unsubscribe, send any mail to "freebsd-net-unsubscribe@freebsd.org"