Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932338Ab0HCPuj (ORCPT ); Tue, 3 Aug 2010 11:50:39 -0400 Received: from e35.co.us.ibm.com ([32.97.110.153]:55204 "EHLO e35.co.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932153Ab0HCPug (ORCPT ); Tue, 3 Aug 2010 11:50:36 -0400 Subject: RE: [RFC PATCH v8 00/16] Provide a zero-copy method on KVM virtio-net. From: Shirley Ma To: "Xin, Xiaohui" 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" In-Reply-To: References: <1280402088-5849-1-git-send-email-xiaohui.xin@intel.com> <1280442682.9058.15.camel@localhost.localdomain> Content-Type: text/plain; charset="UTF-8" Date: Tue, 03 Aug 2010 08:50:20 -0700 Message-ID: <1280850620.3391.4.camel@localhost.localdomain> Mime-Version: 1.0 X-Mailer: Evolution 2.28.3 (2.28.3-1.fc12) Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 983 Lines: 27 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 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/