From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932802AbeDXBEL (ORCPT ); Mon, 23 Apr 2018 21:04:11 -0400 Received: from mx3-rdu2.redhat.com ([66.187.233.73]:34962 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S932697AbeDXBEI (ORCPT ); Mon, 23 Apr 2018 21:04:08 -0400 Subject: Re: [RFC V3 PATCH 0/8] Packed ring for vhost To: Konrad Rzeszutek Wilk , "Michael S. Tsirkin" Cc: kvm@vger.kernel.org, virtualization@lists.linux-foundation.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, tiwei.bie@intel.com, jfreimann@redhat.com, wexu@redhat.com References: <1524461700-5469-1-git-send-email-jasowang@redhat.com> <20180423193120.GD30033@char.us.oracle.com> <20180423224715-mutt-send-email-mst@kernel.org> <20180423201151.GD5215@char.us.oracle.com> From: Jason Wang Message-ID: <803cf7fa-6c74-0506-d609-8f0b79b2c254@redhat.com> Date: Tue, 24 Apr 2018 09:04:01 +0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.7.0 MIME-Version: 1.0 In-Reply-To: <20180423201151.GD5215@char.us.oracle.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit Content-Language: en-US Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 2018年04月24日 04:11, Konrad Rzeszutek Wilk wrote: > On Mon, Apr 23, 2018 at 10:59:43PM +0300, Michael S. Tsirkin wrote: >> On Mon, Apr 23, 2018 at 03:31:20PM -0400, Konrad Rzeszutek Wilk wrote: >>> On Mon, Apr 23, 2018 at 01:34:52PM +0800, Jason Wang wrote: >>>> Hi all: >>>> >>>> This RFC implement packed ring layout. The code were tested with >>>> Tiwei's RFC V2 a thttps://lkml.org/lkml/2018/4/1/48. Some fixups and >>>> tweaks were needed on top of Tiwei's code to make it run. TCP stream >>>> and pktgen does not show obvious difference compared with split ring. >>> I have to ask then - what is the benefit of this? >> You can use this with dpdk within guest. >> The DPDK version did see a performance improvement so hopefully with > Is there a link to this performance improvement document? > You probably want to this: https://www.mail-archive.com/dev@dpdk.org/msg97735.html Thanks