From mboxrd@z Thu Jan 1 00:00:00 1970 From: Fabio Coatti Subject: Re: KVM benchmarks (compared to vmware) Date: Mon, 17 Nov 2008 14:10:52 +0100 Message-ID: <200811171410.52604.cova@ferrara.linux.it> References: <492163E7.4050203@itwm.fraunhofer.de> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: QUOTED-PRINTABLE Cc: kvm@vger.kernel.org To: Martin Vogt Return-path: Received: from cadalboia.ferrara.linux.it ([195.110.122.101]:40580 "EHLO cadalboia.ferrara.linux.it" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751479AbYKQNR3 convert rfc822-to-8bit (ORCPT ); Mon, 17 Nov 2008 08:17:29 -0500 In-Reply-To: <492163E7.4050203@itwm.fraunhofer.de> Content-Disposition: inline Sender: kvm-owner@vger.kernel.org List-ID: luned=EC 17 novembre 2008, hai scritto: > Hello list, > > I did some benchmarks over the weekend and compared > kvm-78 on a 2.6.27.4-2-default against vmware server 2.0.0-122956 > > Host Machine: > - Host E8400 (3GHz) 2GB RAM > - virtual machines are on iSCSI or NFS > - virtual machine is booted with -m 1024 and e1000 > 3. Bench > =3D=3D=3D=3D=3D=3D=3D=3D=3D > Now the NIC performance from within the VM to the outer world, > (measured with tcpspray--program writes to the discard service over t= cp) > > VM->outer world > > 1. iSCSI kvm : 12 MB/s > 2. NFS kvm : 12 MB/s > 3. VMWare : 50 MB/s > > now the reverse: > > outer world->VM > > 1. iSCSI kvm : 50 MB/s > 2. NFS kvm : 50 MB/s > 3. VMWare : 100 MB/s > > but here the kvm results varies from 30MB/s - 70MB/s Do you have any benchmark using virtio network driver, by any chance? F= rom=20 your mail I guess that you used e1000 driver in each case, right? --=20 =46abio "Cova" Coatti http://members.ferrara.linux.it/cova =20 =46errara Linux Users Group http://ferrara.linux.it GnuPG fp:9765 A5B6 6843 17BC A646 BE8C FA56 373A 5374 C703 Old SysOps never die... they simply forget their password.