From mboxrd@z Thu Jan 1 00:00:00 1970 From: Erik Rull Subject: USB Performance Date: Sat, 22 Aug 2009 11:54:26 +0200 Message-ID: <4A8FC052.4000506@rdsoftware.de> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit To: "kvm@vger.kernel.org" Return-path: Received: from moutng.kundenserver.de ([212.227.126.186]:64876 "EHLO moutng.kundenserver.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753379AbZHVJy1 (ORCPT ); Sat, 22 Aug 2009 05:54:27 -0400 Sender: kvm-owner@vger.kernel.org List-ID: Hi all, has anyone benchmarked the USB performance within a KVM guest. I did with KVM 77 and Windows XP SP3 (host is core2duo with usb1.1 / reduced usb 2.0 because of bluescreens in windows): 64 KByte / sec It seems to be a 64 Byte packet of USB communication each millisecond - thats what I got out, when I entered some debug stuff into the driver. Anyone that got a better performance? If yes, how? Best regards, Erik