From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1424288Ab2LGUgD (ORCPT ); Fri, 7 Dec 2012 15:36:03 -0500 Received: from shards.monkeyblade.net ([149.20.54.216]:58623 "EHLO shards.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1424123Ab2LGUgB (ORCPT ); Fri, 7 Dec 2012 15:36:01 -0500 Date: Fri, 07 Dec 2012 15:35:56 -0500 (EST) Message-Id: <20121207.153556.989159003987459765.davem@davemloft.net> To: jasowang@redhat.com Cc: mst@redhat.com, rusty@rustcorp.com.au, virtualization@lists.linux-foundation.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, krkumar2@in.ibm.com, kvm@vger.kernel.org, bhutchings@solarflare.com, jwhan@filewood.snu.ac.kr, shiyer@redhat.com Subject: Re: [PATCH net-next v3 0/3] Multiqueue support in virtio-net From: David Miller In-Reply-To: <1354899897-10423-1-git-send-email-jasowang@redhat.com> References: <1354899897-10423-1-git-send-email-jasowang@redhat.com> X-Mailer: Mew version 6.5 on Emacs 24.1 / Mule 6.0 (HANACHIRUSATO) Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Jason Wang Date: Sat, 8 Dec 2012 01:04:54 +0800 > This series is an update version (hope the final version) of multiqueue > (VIRTIO_NET_F_MQ) support in virtio-net driver. All previous comments were > addressed, the work were based on Krishna Kumar's work to let virtio-net use > multiple rx/tx queues to do the packets reception and transmission. Performance > test show the aggregate latency were increased greately but may get some > regression in small packet transmission. Due to this, multiqueue were disabled > by default. If user want to benefit form the multiqueue, ethtool -L could be > used to enable the feature. > > Please review and comments. > > A protype implementation of qemu-kvm support could by found in > git://github.com/jasowang/qemu-kvm-mq.git. To start a guest with two queues, you > could specify the queues parameters to both tap and virtio-net like: > > ./qemu-kvm -netdev tap,queues=2,... -device virtio-net-pci,queues=2,... > > then enable the multiqueue through ethtool by: > > ethtool -L eth0 combined 2 It seems like most, if not all, of the feedback given for this series has been addressed by Jason. Can I get some ACKs? Thanks.