From mboxrd@z Thu Jan 1 00:00:00 1970 From: Bill Fink Subject: Re: Realtek RTL8111B serious performance issues Date: Thu, 19 Jul 2007 00:44:29 -0400 Message-ID: <20070719004429.fc33c8a7.billfink@mindspring.com> References: <20070718072635.GA26243@electric-eye.fr.zoreil.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Cc: Francois Romieu , netdev@vger.kernel.org To: john@BlueSkyTours.com Return-path: Received: from elasmtp-scoter.atl.sa.earthlink.net ([209.86.89.67]:34764 "EHLO elasmtp-scoter.atl.sa.earthlink.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751041AbXGSEos (ORCPT ); Thu, 19 Jul 2007 00:44:48 -0400 In-Reply-To: Sender: netdev-owner@vger.kernel.org List-Id: netdev.vger.kernel.org Hi John, On Wed, 18 Jul 2007, john@BlueSkyTours.com wrote: > On Wed, 18 Jul 2007, Francois Romieu wrote: > > > john@BlueSkyTours.com : > > [...] > >> Anyone have any suggestions for solving this problem? > > > > Try 2.6.23-rc1 when it is published or apply against 2.6.22 one of: > > http://www.fr.zoreil.com/people/francois/misc/20070628-2.6.22-rc6-r8169-test.patch > > Unfortunately, the 20070628 patch did not make any difference. > > > > http://www.fr.zoreil.com/linux/kernel/2.6.x/2.6.22-rc6/r8169-20070628/ > > > I tried various patches from that directory (aren't most or all of them > included in the 20070628 patch?), but none of them helped either. > > > This problem could be very difficult to track down. Like I said, it > definately effects emacs and firefox being "drawn" on a remote computer. > Ping times, however, are not that bad: > > PING 192.168.26.150: 56 data bytes > 64 bytes from dyn26-1.blueskytours.com (192.168.26.150): icmp_seq=0. time=0.287 ms > 64 bytes from dyn26-1.blueskytours.com (192.168.26.150): icmp_seq=1. time=0.279 ms > 64 bytes from dyn26-1.blueskytours.com (192.168.26.150): icmp_seq=2. time=0.196 ms > 64 bytes from dyn26-1.blueskytours.com (192.168.26.150): icmp_seq=3. time=0.201 ms > 64 bytes from dyn26-1.blueskytours.com (192.168.26.150): icmp_seq=4. time=0.159 ms > 64 bytes from dyn26-1.blueskytours.com (192.168.26.150): icmp_seq=5. time=0.148 ms > 64 bytes from dyn26-1.blueskytours.com (192.168.26.150): icmp_seq=6. time=0.150 ms > > Also, wget gets good throughput when retrieving files. > > It just seems to be X traffic which is extremely slow. Using the old > Linksys 10/100 PCI NIC, emacs comes up virtually instantaneously. Using the > integrated Realtek 8111B, emacs takes 10 seconds to draw. > > Thank you very much for trying to help. Any chance that the Realtek 8111B is sharing interrupts with another device ("cat /proc/interrupts")? Perhaps it is, and the Linksys isn't, which could explain the difference in behavior. Just something simple to check and either rule in or out. -Bill