From owner-freebsd-net Tue Nov 13 13:56:59 2001 Delivered-To: freebsd-net@freebsd.org Received: from fledge.watson.org (fledge.watson.org [204.156.12.50]) by hub.freebsd.org (Postfix) with ESMTP id 4700A37B416 for ; Tue, 13 Nov 2001 13:56:56 -0800 (PST) Received: from localhost (arr@localhost) by fledge.watson.org (8.11.6/8.11.5) with SMTP id fADLufB54358; Tue, 13 Nov 2001 16:56:41 -0500 (EST) (envelope-from arr@FreeBSD.org) X-Authentication-Warning: fledge.watson.org: arr owned process doing -bs Date: Tue, 13 Nov 2001 16:56:40 -0500 (EST) From: "Andrew R. Reiter" X-Sender: arr@fledge.watson.org To: CJTT Cc: freebsd-net@FreeBSD.org Subject: Re: zero copy and wire speeds In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-net@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org Actually, I'd say it's more along the opposite of this :-) There are patches for 4.0, IIRC, that do zero copy sockets and NFS. They are located at: http://people.freebsd.org/~ken/zero_copy/ I've been looking at them recently to see what it'd take to move it to -current and 4.4.. but definetly have not done anything worth looking at. Hope this helps, Andrew On Tue, 13 Nov 2001, CJTT wrote: : :Do you have to be running Current in order to use the :zero copy sockets? If so, when will this make it to :Stable? (I'm on 4.4). : :On a related topic, if trying to maximize the amount :of traffic being sent on an ethernet card, how can :you write your code so that you can try to make sure :every packet gets put out on the wire? This is in a :test lab so I'm not particularly concerned with something :else receiving it correctly. select() really only :guarantees that I can write 1 byte to the file descriptor, no? : :Thanks, :CJ : : : :To Unsubscribe: send mail to majordomo@FreeBSD.org :with "unsubscribe freebsd-net" in the body of the message : -- Andrew R. Reiter arr@watson.org arr@FreeBSD.org To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message