From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stephen Hemminger Subject: Re: e1000 poor network performance - 2.6.17-rc5-g705af309 Date: Sun, 28 May 2006 09:04:09 -0700 Message-ID: <20060528090409.08a9bce8@localhost.localdomain> References: <20060526212243.GA19250@SDF.LONESTAR.ORG> <4807377b0605271410j39532f44j2cafd3239d40bf31@mail.gmail.com> <20060528074310.GA16499@SDF.LONESTAR.ORG> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Cc: netdev@vger.kernel.org Return-path: Received: from smtp.osdl.org ([65.172.181.4]:62386 "EHLO smtp.osdl.org") by vger.kernel.org with ESMTP id S1750784AbWE1QEV (ORCPT ); Sun, 28 May 2006 12:04:21 -0400 To: Aravind Gottipati In-Reply-To: <20060528074310.GA16499@SDF.LONESTAR.ORG> Sender: netdev-owner@vger.kernel.org List-Id: netdev.vger.kernel.org On Sun, 28 May 2006 07:43:10 +0000 Aravind Gottipati wrote: > On Sat, May 27, 2006 at 02:10:17PM -0700, Jesse Brandeburg wrote: > > What kind of poor performance? what test? please send the output of > > ethtool -e ethX and ethtool -S ethX after you've been having problems. > > I first noticed the problem (slow speed) when pinging sites. I then > noticed that the problem occured on normal ssh sessions and ftp/http > downloads as well. I have a spare pcmcia card that I am using on the > same laptop so I have something to compare it against. In all the > readings below, eth0 is the builtin Intel 82573L (PCI-Express) card and > eth2 is a pcmcia D-link card (8139too driver). > > You can see below the ping times varying randomly through eth0. Compare > these with the ping times through eth2 (at the bottom). Also there are > some collisions in the ethtool -S output here (I am on a 10/100 hub), I > see the same performance using a switch as well. > > I am not subscribed to the list, so please cc me on your responses. > > Thank you, > > Aravind. What is the interrupt assignment on this machine? cat /proc/interrupts