From owner-freebsd-hackers Thu Mar 25 16:18:33 1999 Delivered-To: freebsd-hackers@freebsd.org Received: from sumatra.americantv.com (sumatra.americantv.com [207.170.17.37]) by hub.freebsd.org (Postfix) with ESMTP id C5A2514CD5 for ; Thu, 25 Mar 1999 16:18:28 -0800 (PST) (envelope-from jlemon@americantv.com) Received: from right.PCS (right.PCS [148.105.10.31]) by sumatra.americantv.com (8.8.5/8.8.5) with ESMTP id SAA22145; Thu, 25 Mar 1999 18:18:09 -0600 (CST) Received: from free.pcs (free.PCS [148.105.10.51]) by right.PCS (8.6.13/8.6.4) with ESMTP id SAA24024; Thu, 25 Mar 1999 18:17:38 -0600 Received: (from jlemon@localhost) by free.pcs (8.8.6/8.8.5) id SAA13252; Thu, 25 Mar 1999 18:17:37 -0600 (CST) Date: Thu, 25 Mar 1999 18:17:37 -0600 (CST) From: Jonathan Lemon Message-Id: <199903260017.SAA13252@free.pcs> To: dillon@apollo.backplane.com, freebsd-hackers@freebsd.org Subject: Re: 3.1-STABLE dies on 40+ connects X-Newsgroups: local.mail.freebsd-hackers In-Reply-To: References: Organization: Architecture and Operating System Fanatics Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG In article you write: > netstat -tn output would be useful -- figure out what is eating so > much memory. > > You should be able to raise NMBCLUSTERS to 8192 easily, and possibly > even higher. Yup. However, FBSD will still panic whne it runs out of NMBCLUSTERS. I have a machine with 64K mbufs, 20K NMBCLUSTERS, and if I run out of mbuf clusters (usually because I fell behind in processing) the machine will panic. Not very nice, I suppose I should go digging to fix it sometime soon. Can someone give a short explanation (or a pointer to the relevant code) as to exactly when a NMBCLUSTER comes into play, instead of using a long mbuf chain? -- Jonathan To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message