From owner-freebsd-stable Thu Jan 24 13:21:52 2002 Delivered-To: freebsd-stable@freebsd.org Received: from resnet.uoregon.edu (resnet.uoregon.edu [128.223.122.47]) by hub.freebsd.org (Postfix) with ESMTP id 43AD437B402 for ; Thu, 24 Jan 2002 13:21:49 -0800 (PST) Received: from localhost (dwhite@localhost) by resnet.uoregon.edu (8.11.3/8.10.1) with ESMTP id g0OLM6207410; Thu, 24 Jan 2002 13:22:07 -0800 (PST) Date: Thu, 24 Jan 2002 13:22:06 -0800 (PST) From: Doug White To: Sergey Gershtein Cc: freebsd-stable@FreeBSD.ORG Subject: Re[3]: Strange lock-ups during backup over nfs after adding 1024M RAM In-Reply-To: <30787244167.20020124134759@ur.ru> Message-ID: <20020124131821.O5882-100000@resnet.uoregon.edu> X-All-Your-Base: are belong to us MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG On Thu, 24 Jan 2002, Sergey Gershtein wrote: > It's a rather heavily loaded web server (average of 25 requests/sec, > 100kb/sec), so I guess it's a lot of network. Could you please point > me to the right direction where to read about mbuf monitoring? I > found some info in the Handbook (6.10 Tuning Kernel Limits), but there > are not much unfortunately. 'netstat -m', watch these lines: 131/864/10240 mbufs in use (current/peak/max): 128/172/2560 mbuf clusters in use (current/peak/max) You want to keep the second number about 80% of the third number. If it gets too close bump the kernel tunables kern.mbufs and kern.nmbclusters (or set options MBUFS and NMBCLUSTERS in the kernel config). Doug White | FreeBSD: The Power to Serve dwhite@resnet.uoregon.edu | www.FreeBSD.org To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message