From mboxrd@z Thu Jan 1 00:00:00 1970 From: Shirley Ma Subject: RE: [RFC PATCH v8 00/16] Provide a zero-copy method on KVM virtio-net. Date: Tue, 03 Aug 2010 08:50:20 -0700 Message-ID: <1280850620.3391.4.camel@localhost.localdomain> References: <1280402088-5849-1-git-send-email-xiaohui.xin@intel.com> <1280442682.9058.15.camel@localhost.localdomain> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Cc: "netdev@vger.kernel.org" , "kvm@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "mst@redhat.com" , "mingo@elte.hu" , "davem@davemloft.net" , "herbert@gondor.apana.org.au" , "jdike@linux.intel.com" To: "Xin, Xiaohui" Return-path: In-Reply-To: Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.vger.kernel.org Hello Xiaohui, On Tue, 2010-08-03 at 16:48 +0800, Xin, Xiaohui wrote: > May you share me with your performance results (including BW and > latency)on > vhost-net and how you get them(your configuration and especially with > the affinity > settings)? My macvtap zero copy is incomplete, I am testing sendmsg only now. The initial performance is not good especially for latency (zero copy vs. copy). I am still working on it to find out why and how to improve. That's the reason I am eager to know your performance results and how much performance gain you have seen. Since your patch has completed. I would try your patch here for performance. If you have some performance results to share here that would be great. Thanks Shirley