From mboxrd@z Thu Jan 1 00:00:00 1970 From: "David Madsen" Subject: Re: r8169: slow samba performance Date: Thu, 13 Sep 2007 18:31:25 -0700 Message-ID: References: <20070909153312.GA29586@electric-eye.fr.zoreil.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: netdev@vger.kernel.org To: "Francois Romieu" Return-path: Received: from fk-out-0910.google.com ([209.85.128.185]:25197 "EHLO fk-out-0910.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751118AbXINBb1 (ORCPT ); Thu, 13 Sep 2007 21:31:27 -0400 Received: by fk-out-0910.google.com with SMTP id z23so635872fkz for ; Thu, 13 Sep 2007 18:31:25 -0700 (PDT) In-Reply-To: <20070909153312.GA29586@electric-eye.fr.zoreil.com> Content-Disposition: inline Sender: netdev-owner@vger.kernel.org List-Id: netdev.vger.kernel.org > > I noticed a somewhat significant difference between patch #0002 and a > > busy wait loop with ndelay(10). Write performance was equivalent in > > both cases as should be the case. Read perfomance for me maxed out > > Do you have some (gross) figure for the write performance ? Write performance was quite high, around 650-700 megabit no doubt due to caching behavior on the server, and it was similar in both cases. I believe the machine with the r8169 was CPU bound at this point or it probably would have been even higher. Sorry for the slow response, your reply ended up buried in a deluge of email and I just dug it out. I'll give these other patches a spin in the next couple days when I get a chance and see if things improve. --David Madsen