From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1765143AbYDOWhb (ORCPT ); Tue, 15 Apr 2008 18:37:31 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1756671AbYDOWhW (ORCPT ); Tue, 15 Apr 2008 18:37:22 -0400 Received: from filter2.host.bg ([87.120.40.156]:53194 "EHLO filter2.host.bg" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756314AbYDOWhU (ORCPT ); Tue, 15 Apr 2008 18:37:20 -0400 Subject: Re: Bad network performance over 2Gbps From: Anton Titov To: "Kok, Auke" Cc: Willy Tarreau , Linux Kernel Mailing List , linux-net@vger.kernel.org, Jesse Brandeburg In-Reply-To: <480512BD.3060407@intel.com> References: <1208282804.23631.27.camel@localhost> <20080415201441.GE8474@1wt.eu> <480512BD.3060407@intel.com> Content-Type: text/plain Organization: Hosting Ltd. Date: Wed, 16 Apr 2008 01:36:36 +0300 Message-Id: <1208298996.23631.43.camel@localhost> Mime-Version: 1.0 X-Mailer: Evolution 2.12.1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 2008-04-15 at 13:40 -0700, Kok, Auke wrote: > Willy Tarreau wrote: > 1) turn the in-kernel IRQBALANCE option off ! Actually it may be already removed. I remember it being under "Processor type and features" and I currently cannot find it there for x86_64 > 2) use either the userspace `irqbalance` daemon or > 3) set smp_affinity manually I tried echoing 3 (assuming that CPU0 and CPU1 will share their cache, as advised in other mails) into smp_affinity of all ethX interrupts and no positive result was observed. I will try disabling NAPI and limiting e1000 interrupts tomorrow. > > Auke > > > > > Regards, > > Willy > > > > -- > > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > > the body of a message to majordomo@vger.kernel.org > > More majordomo info at http://vger.kernel.org/majordomo-info.html > > Please read the FAQ at http://www.tux.org/lkml/ >