From owner-freebsd-hackers Sun Feb 17 10:51: 8 2002 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 38D4A37B402; Sun, 17 Feb 2002 10:51:04 -0800 (PST) Received: by flood.ping.uio.no (Postfix, from userid 2602) id 130D05341; Sun, 17 Feb 2002 19:51:01 +0100 (CET) X-URL: http://www.ofug.org/~des/ X-Disclaimer: The views expressed in this message do not necessarily coincide with those of any organisation or company with which I am or have been affiliated. To: Roy Sigurd Karlsbakk Cc: Thomas Hurst , , , Subject: Re: in-kernel HTTP Server for FreeBSD? References: From: Dag-Erling Smorgrav Date: 17 Feb 2002 19:51:00 +0100 In-Reply-To: Message-ID: Lines: 19 User-Agent: Gnus/5.0808 (Gnus v5.8.8) Emacs/21.1 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii 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 Roy Sigurd Karlsbakk writes: > > > > sendfile() isn't zero-copy, it's just two-less-copies. > > > zero-copy means "zero copy-operations within memory" > > To an MCSE, maybe. > strange ... > [...] So what would you call direct DMA from the disk controller to the network adapter? Minus-one-copy? And even in the sendfile(2) case, data sometimes *is* copied in-core to satisfy alignment requirements etc. Stop using buzzwords just because they give you a woody. (and yes, even a Dr. Scient can be mistaken. Papers don't make you smart, you know - though I wouldn't expect someone who brags about being an MCSE and MCNE to understand that) DES -- Dag-Erling Smorgrav - des@ofug.org To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message