From mboxrd@z Thu Jan 1 00:00:00 1970 From: Shirley Ma Subject: Re: vhost-net patches Date: Mon, 26 Oct 2009 14:34:49 -0700 Message-ID: <1256592889.10142.8.camel@localhost.localdomain> References: <20091022123456.GA6682@redhat.com> <20091022131332.GB6961@redhat.com> <1256232224.6601.17.camel@localhost.localdomain> <20091022174344.GA10821@redhat.com> <1256234420.27706.5.camel@w-sridhar.beaverton.ibm.com> <20091023110438.GA20229@redhat.com> <1256310168.4443.2.camel@localhost.localdomain> <1256310765.4443.4.camel@localhost.localdomain> <1256315020.4443.12.camel@localhost.localdomain> <20091026200513.GA26623@redhat.com> Mime-Version: 1.0 Content-Type: text/plain Content-Transfer-Encoding: 7bit Cc: Sridhar Samudrala , Shirley Ma , David Stevens , kvm@vger.kernel.org, sri@linux.vnet.ibm.com, mashirle@linux.vnet.ibm.com To: "Michael S. Tsirkin" Return-path: Received: from e2.ny.us.ibm.com ([32.97.182.142]:53985 "EHLO e2.ny.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753378AbZJZVer (ORCPT ); Mon, 26 Oct 2009 17:34:47 -0400 Received: from d01relay06.pok.ibm.com (d01relay06.pok.ibm.com [9.56.227.116]) by e2.ny.us.ibm.com (8.14.3/8.13.1) with ESMTP id n9QLRNB9011663 for ; Mon, 26 Oct 2009 17:27:23 -0400 Received: from d01av03.pok.ibm.com (d01av03.pok.ibm.com [9.56.224.217]) by d01relay06.pok.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id n9QLYqPR1032342 for ; Mon, 26 Oct 2009 17:34:52 -0400 Received: from d01av03.pok.ibm.com (loopback [127.0.0.1]) by d01av03.pok.ibm.com (8.14.3/8.13.1/NCO v10.0 AVout) with ESMTP id n9QBZgT9014437 for ; Mon, 26 Oct 2009 07:35:43 -0400 In-Reply-To: <20091026200513.GA26623@redhat.com> Sender: kvm-owner@vger.kernel.org List-ID: Hello Miachel, On Mon, 2009-10-26 at 22:05 +0200, Michael S. Tsirkin wrote: > Shirley, could you please test the following patch? With this patch, the performance has gained from 1xxx to 2xxx Mb/s, still has some performance gap compared to without vhost. It was 3xxxMb/s before from guest to host on my set up. Looks like your git tree virtio_net has fixed the skb_xmit panic I have seen before as well, good news. Thanks Shirley