From owner-freebsd-hackers Tue Mar 16 22:12:24 1999 Delivered-To: freebsd-hackers@freebsd.org Received: from flood.ping.uio.no (flood.ping.uio.no [129.240.78.31]) by hub.freebsd.org (Postfix) with ESMTP id 083F214C94 for ; Tue, 16 Mar 1999 22:12:22 -0800 (PST) (envelope-from des@flood.ping.uio.no) Received: (from des@localhost) by flood.ping.uio.no (8.9.2/8.9.1) id HAA25561; Wed, 17 Mar 1999 07:12:03 +0100 (CET) (envelope-from des) To: Dag-Erling Smorgrav Cc: "David E. Cross" , freebsd-hackers@FreeBSD.ORG Subject: Re: evil maxusers References: <199903160216.VAA24377@cs.rpi.edu> From: Dag-Erling Smorgrav Date: 17 Mar 1999 07:12:02 +0100 In-Reply-To: Dag-Erling Smorgrav's message of "17 Mar 1999 03:20:15 +0100" Message-ID: Lines: 12 X-Mailer: Gnus v5.5/Emacs 19.34 Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Dag-Erling Smorgrav writes: > Because mbufs eat memory, and the kernel has a limited address space. > If I'm not mistaken, setting maxusers to 320 eats up to 90 MB in mbuf > clusters alone, which is almost half the kernel address space. Foo, I made a braino. Mbuf clusters are 16 mbufs long, not 16 kB (or rather, they're 2048 bytes long which happens to be 16 times the size of a regular mbuf) DES -- Dag-Erling Smorgrav - des@flood.ping.uio.no To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message