From owner-freebsd-hackers Sun Mar 8 21:18:56 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id VAA00453 for freebsd-hackers-outgoing; Sun, 8 Mar 1998 21:18:56 -0800 (PST) (envelope-from owner-freebsd-hackers@FreeBSD.ORG) Received: from rover.village.org (rover.village.org [204.144.255.49]) by hub.freebsd.org (8.8.8/8.8.8) with SMTP id VAA00403; Sun, 8 Mar 1998 21:18:48 -0800 (PST) (envelope-from imp@village.org) Received: from pencil-box.village.org [10.0.0.22] by rover.village.org with esmtp (Exim 1.71 #1) id 0yBuxT-0005Nt-00; Sun, 8 Mar 1998 22:18:39 -0700 Received: from pencil-box.village.org (localhost [127.0.0.1]) by pencil-box.village.org (8.8.8/8.8.3) with ESMTP id WAA04140; Sun, 8 Mar 1998 22:17:53 -0700 (MST) Message-Id: <199803090517.WAA04140@pencil-box.village.org> To: Luigi Rizzo Subject: Re: kernel wishlist for web server performance Cc: mike@smith.net.au (Mike Smith), marcs@znep.com, dyson@FreeBSD.ORG, hackers@FreeBSD.ORG In-reply-to: Your message of "Sun, 08 Mar 1998 06:58:29 +0100." <199803080558.GAA04603@labinfo.iet.unipi.it> References: <199803080558.GAA04603@labinfo.iet.unipi.it> Date: Sun, 08 Mar 1998 22:17:53 -0700 From: "M. Warner Losh" Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG In message <199803080558.GAA04603@labinfo.iet.unipi.it> Luigi Rizzo writes: : Furthermore, consider that on modern machines these copies might : run at some 250Mbytes/s or faster, i.e. one order of magnitude : faster than network/disk speed. That is 50ish times the sustained speed of most disk drives. And 25 times faster than the fastest generally deployed network technology (100BaseT). Anyway, we're talking at most 2-4% savings here at the cost of a huge amount of kernel bloat. Warner To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message