Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758469Ab1FPOs0 (ORCPT ); Thu, 16 Jun 2011 10:48:26 -0400 Received: from mail-vx0-f174.google.com ([209.85.220.174]:53198 "EHLO mail-vx0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758394Ab1FPOsY convert rfc822-to-8bit (ORCPT ); Thu, 16 Jun 2011 10:48:24 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:sender:in-reply-to:references:date :x-google-sender-auth:message-id:subject:from:to:cc:content-type :content-transfer-encoding; b=McFKeH1skLw3m5Ow1DXQnZ+RMvdfhiAhAOAEBSv9HGdYHEpwcql+0GZHdp6FK/4cKV R/9hzOofyMcuKzZxNWtjbGBXt1yx2K+TRTCAW4kMBT9zuIw49NpAzhJiZMegGdG790FP jbP0qMp/y1+tzRaeAgjsciYbNx+2PCb1+a1xA= MIME-Version: 1.0 In-Reply-To: <1308153214.7566.6.camel@jaguar> References: <1308153214.7566.6.camel@jaguar> Date: Thu, 16 Jun 2011 17:48:21 +0300 X-Google-Sender-Auth: YPw-X7l7zBy7GcrohHTBklAaUa0 Message-ID: Subject: Re: [ANNOUNCE] Native Linux KVM tool v2 From: Pekka Enberg To: linux-kernel@vger.kernel.org, kvm@vger.kernel.org Cc: Avi Kivity , Andrew Morton , Linus Torvalds , Ingo Molnar , Prasad Joshi , Sasha Levin , Cyrill Gorcunov , Asias He Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 844 Lines: 18 On Wed, Jun 15, 2011 at 6:53 PM, Pekka Enberg wrote: > - Fast QCOW2 image read-write support beating Qemu in fio benchmarks. See the > ?following URL for test result details: https://gist.github.com/1026888 It turns out we were benchmarking the wrong guest kernel version for qemu-kvm which is why it performed so much worse. Here's a summary of qemu-kvm beating tools/kvm: https://raw.github.com/gist/1029359/9f9a714ecee64802c08a3455971e410d5029370b/gistfile1.txt I'd ask for a brown paper bag if I wasn't so busy eating my hat at the moment. Pekka -- 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/