From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:51570) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YwF8C-0001Rw-SW for qemu-devel@nongnu.org; Sat, 23 May 2015 15:30:52 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1YwF89-0004y8-0r for qemu-devel@nongnu.org; Sat, 23 May 2015 15:30:48 -0400 Received: from indium.canonical.com ([91.189.90.7]:59497) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YwF88-0004xx-RT for qemu-devel@nongnu.org; Sat, 23 May 2015 15:30:44 -0400 Received: from loganberry.canonical.com ([91.189.90.37]) by indium.canonical.com with esmtp (Exim 4.76 #1 (Debian)) id 1YwF88-0000QK-59 for ; Sat, 23 May 2015 19:30:44 +0000 Received: from loganberry.canonical.com (localhost [127.0.0.1]) by loganberry.canonical.com (Postfix) with ESMTP id 234502E80C2 for ; Sat, 23 May 2015 19:30:44 +0000 (UTC) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Date: Sat, 23 May 2015 19:21:20 -0000 From: Toddandmargo-n <1458121@bugs.launchpad.net> Sender: bounces@canonical.com References: <20150523044130.28515.8384.malonedeb@wampee.canonical.com> <20150523080802.28979.4766.malone@wampee.canonical.com> Message-Id: <5560D330.8030104@zoho.com> Errors-To: bounces@canonical.com Subject: Re: [Qemu-devel] [Bug 1458121] Re: USB2 is five times slower than native on qemu-kvm Reply-To: Bug 1458121 <1458121@bugs.launchpad.net> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org On 05/23/2015 01:08 AM, Michael Tokarev wrote: > That version was a pre-alfa version of kvm support in qemu, is insanely > outdated, is heavily patched by redhat. I don't even think USB2 was > supported by that version. Please try on a current version of qemu and > kernel and reopen if the problem persist there. > > ** Changed in: qemu > Status: New =3D> Invalid > Hi Michael, Thank you for your consideration. I had a feeling. I asked Red Hat if they would have a whack at it. They are suppose to support EL6 till 2020, but they really don't. So maybe. I am trying to upgrade to EL7, but the lack of Wine32 support is a deal killer. Just out of curiosity, does the USB support work any better in the new version of qemu? Is it "on the fly" or do you still have to map each drive in? Many thanks, -T -- = ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Computers are like air conditioners. They malfunction when you open windows ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -- = You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/1458121 Title: USB2 is five times slower than native on qemu-kvm Status in QEMU: Invalid Bug description: Dear Qemu, Spice told me to report this over here. Scientific Linux 6.6 $ uname -r 2.6.32-504.16.2.el6.x86_64 $ cat /etc/redhat-release Scientific Linux release 6.6 (Carbon) $ rpm -qa qemu\* qemu-img-0.12.1.2-2.448.el6_6.3.x86_64 qemu-kvm-0.12.1.2-2.448.el6_6.3.x86_64 = I have a bootable USB2 FC21 flash drive. I can boot my machine directly = from it or run it as a virtual machine through KVM. Problem: it is about 5 times slower through KVM. (Really, I am not exaggerating) Many thanks, -T To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1458121/+subscriptions