From mboxrd@z Thu Jan 1 00:00:00 1970 From: Avi Kivity Subject: Re: virtio_net with RSS? Date: Sun, 17 May 2009 22:46:18 +0300 Message-ID: <4A10698A.50004@redhat.com> References: <0199E0D51A61344794750DC57738F58E66BC9810CF@GVW1118EXC.americas.hpqcorp.net> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: "kvm@vger.kernel.org" To: "Fischer, Anna" Return-path: Received: from mx2.redhat.com ([66.187.237.31]:46756 "EHLO mx2.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754772AbZEQTqV (ORCPT ); Sun, 17 May 2009 15:46:21 -0400 In-Reply-To: <0199E0D51A61344794750DC57738F58E66BC9810CF@GVW1118EXC.americas.hpqcorp.net> Sender: kvm-owner@vger.kernel.org List-ID: Fischer, Anna wrote: > Are there any plans to enhance virtio_net with receive-side scaling capabilities, so that an SMP guest OS can balance its network processing load more equally across multiple CPUs? > Yes, the MSI-X patches are the first steps towards this. We will enable each queue to have its own interrupt; then we can have a queue pair for each vcpu. -- Do not meddle in the internals of kernels, for they are subtle and quick to panic.