From owner-cvs-all Fri Nov 6 09:38:30 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id JAA01868 for cvs-all-outgoing; Fri, 6 Nov 1998 09:38:30 -0800 (PST) (envelope-from owner-cvs-all@FreeBSD.ORG) Received: from apollo.backplane.com (apollo.backplane.com [209.157.86.2]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id JAA01862 for ; Fri, 6 Nov 1998 09:38:28 -0800 (PST) (envelope-from dillon@apollo.backplane.com) Received: (from dillon@localhost) by apollo.backplane.com (8.9.1/8.9.1) id IAA05602; Fri, 6 Nov 1998 08:56:44 -0800 (PST) (envelope-from dillon) Date: Fri, 6 Nov 1998 08:56:44 -0800 (PST) From: Matthew Dillon Message-Id: <199811061656.IAA05602@apollo.backplane.com> To: David Greenman Cc: Marc Slemko , cvs-committers@FreeBSD.ORG Subject: Re: sendfile() References: <199811061233.EAA15930@implode.root.com> Sender: owner-cvs-all@FreeBSD.ORG Precedence: bulk :kernel->user copy, even though the data is thrown away. The LAN test you :did is unusually slow; on a P6/200 with 100Mbps DMA fast ether (fxp) talking :to another machine as a data sink, I measured very close to 1/10th of the CPU :consumption when sending a cached file vs. the same except using ttcp with a :cached file (which does a read/write loop). : :-DG My LAN at home is only 10BaseT. It was saturating it, but not saturating the cpu. I'll experiment some more with it. -Matt :David Greenman :Co-founder/Principal Architect, The FreeBSD Project : : Matthew Dillon Engineering, HiWay Technologies, Inc. & BEST Internet Communications & God knows what else. (Please include original email in any response) To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe cvs-all" in the body of the message