From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from relay04.roc.ny.frontiernet.net (relay04.roc.ny.frontiernet.net [66.133.131.37]) by ozlabs.org (Postfix) with ESMTP id 503FE2BDB5 for ; Fri, 19 Nov 2004 04:45:55 +1100 (EST) Message-ID: <005301c4cd96$c9915570$0601a8c0@chuck2> From: "Mark Chambers" To: =?iso-8859-1?Q?I=F1igo_Lopez_Barranco?= , References: <42A622EB18325843894BB8E1040E3DF5022830@sinaexchf> Date: Thu, 18 Nov 2004 12:48:05 -0500 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Subject: Re: Ethernet on 5200 is using DMA? List-Id: Linux on Embedded PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , I don't think it's possible to NOT use DMA on a 5200. If your link is 100Mbps and you are putting out something close to that then 90% is not unreasonable. There are still memory copies involved. Where is it getting the large file from? Maybe IDE is a bottleneck. Mark Chambers wvcomputronics.com ----- Original Message ----- From: "Iņigo Lopez Barranco" To: Sent: Thursday, November 18, 2004 11:55 AM Subject: Ethernet on 5200 is using DMA? Hi. I'm using linuxppc_2_4_devel from Denx CVS on a Lite5200 board. When doing "put" of a large file to a ftp server, ftp eats all the CPU available (90%+). I suspect it's not using DMA for the ethernet. Is this right? Thanks in advance. Iņigo _______________________________________________ Linuxppc-embedded mailing list Linuxppc-embedded@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-embedded