From mboxrd@z Thu Jan 1 00:00:00 1970 From: Maxime Coquelin Subject: Re: [PATCH] doc: introduce PVP reference benchmark Date: Tue, 29 Nov 2016 11:29:58 +0100 Message-ID: <7b9bda04-3216-f54e-2b30-4772445c60eb@redhat.com> References: <20161123210006.7113-1-maxime.coquelin@redhat.com> <20161124050751.GC5048@yliu-dev.sh.intel.com> <20161129101647.GP5048@yliu-dev.sh.intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit Cc: thomas.monjalon@6wind.com, john.mcnamara@intel.com, zhiyong.yang@intel.com, dev@dpdk.org, fbaudin@redhat.com To: Yuanhan Liu Return-path: Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by dpdk.org (Postfix) with ESMTP id 495CF3B5 for ; Tue, 29 Nov 2016 11:30:04 +0100 (CET) In-Reply-To: <20161129101647.GP5048@yliu-dev.sh.intel.com> List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" Hi Yuanhan, On 11/29/2016 11:16 AM, Yuanhan Liu wrote: > On Thu, Nov 24, 2016 at 08:35:51AM +0100, Maxime Coquelin wrote: >> >> >> On 11/24/2016 06:07 AM, Yuanhan Liu wrote: >>> First of all, thanks for the doc! It's a great one. >> Thanks. >> I would be interested to know if you have other tuning I don't mention >> in this doc. > > I was thinking we may need doc some performance impacts by some features, > say we observed that indirect desc may be good for some cases, while may > be bad for others. Also, the non mergeable Rx path outweighs the mergeable > Rx path. If user cares about the perfomance and ascertains all packets > fits into a typical MTU, he may likely want to disable the mergeable > feature, which is enabled by default. > > Maybe we could start a new doc, or maybe we could add a new section here? I agree that we should documents impact of Virtio features on traffic profile. My opinion is that it deserves a dedicated document. For this PVP doc, I suggest we add a section stating that one could try with different Virtio features, and in Kevin's result template proposal, we add a line for Virtio features enabled/disabled. Thanks, Maxime > > --yliu >