From owner-freebsd-hackers Fri Nov 30 10:33:51 2001 Delivered-To: freebsd-hackers@freebsd.org Received: from iguana.aciri.org (iguana.aciri.org [192.150.187.36]) by hub.freebsd.org (Postfix) with ESMTP id 94E2637B417 for ; Fri, 30 Nov 2001 10:33:43 -0800 (PST) Received: (from rizzo@localhost) by iguana.aciri.org (8.11.3/8.11.1) id fAUITSv31602; Fri, 30 Nov 2001 10:29:28 -0800 (PST) (envelope-from rizzo) Date: Fri, 30 Nov 2001 10:29:28 -0800 From: Luigi Rizzo To: Leo Bicknell Cc: freebsd-hackers@FreeBSD.ORG Subject: Re: TCP Performance Graphs Message-ID: <20011130102928.E30981@iguana.aciri.org> References: <20011130125839.A88302@ussenterprise.ufp.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20011130125839.A88302@ussenterprise.ufp.org> User-Agent: Mutt/1.3.23i Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG The default window size (controlled by the socket buffer size) can be globally modified using sysctl variables: net.inet.tcp.sendspace: 16384 net.inet.tcp.recvspace: 16384 As you mention, changing this (and other things such as the amount of mbufs/clusters, etc.etc.) must be done considering the hw configuration and other issues. It is not a big deal to move the default to 32 or 64k, and I'd vote for that, but if a sysadmin is unable to have a look at this, then the problem is in the sysadmin, not in FreeBSD! cheers luigi ----------------------------------+----------------------------------------- Luigi RIZZO, luigi@iet.unipi.it . ACIRI/ICSI (on leave from Univ. di Pisa) http://www.iet.unipi.it/~luigi/ . 1947 Center St, Berkeley CA 94704 Phone: (510) 666 2927 ----------------------------------+----------------------------------------- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message