From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jason Wang Subject: Re: [PATCH net-next V2 0/3] rx busy polling support for virtio-net Date: Thu, 17 Jul 2014 14:59:26 +0800 Message-ID: <53C7744E.60806@redhat.com> References: <1405491707-22706-1-git-send-email-jasowang@redhat.com> <20140716.232116.802194909968085691.davem@davemloft.net> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20140716.232116.802194909968085691.davem@davemloft.net> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: virtualization-bounces@lists.linux-foundation.org Errors-To: virtualization-bounces@lists.linux-foundation.org To: David Miller Cc: netdev@vger.kernel.org, virtualization@lists.linux-foundation.org, linux-kernel@vger.kernel.org, mst@redhat.com List-Id: virtualization@lists.linuxfoundation.org On 07/17/2014 02:21 PM, David Miller wrote: > From: Jason Wang > Date: Wed, 16 Jul 2014 14:21:44 +0800 > >> Hi all: >> >> This series introduces the support for rx busy polling support. This >> was useful for reduing the latency for a kvm guest. Patch 1-2 >> introduces helpers which is used for rx busy polling. Patch 3 >> implement the main function. >> >> Test was done between a kvm guest and an external host. Two hosts were >> connected through 40gb mlx4 cards. With both busy_poll and busy_read are >> set to 50 in guest, 1 byte netperf tcp_rr shows 116% improvement: >> transaction rate was increased from 9151.94 to 19787.37. >> >> Changes from V1: >> - split the patch info smaller ones >> - add more details about test setup/configuration >> >> Please review. > Looks like you can make some minor adjustments based upon review, and > anyways I'd like to wait for Michael to get back and review a change > of this nature. > > Thanks. Ok, I will wait for Michael's comments and then post V3. Thanks