From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:39545) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1SzNiG-00068I-Fq for qemu-devel@nongnu.org; Thu, 09 Aug 2012 04:03:28 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1SzNiF-0002FL-L6 for qemu-devel@nongnu.org; Thu, 09 Aug 2012 04:03:24 -0400 Received: from mx1.redhat.com ([209.132.183.28]:4678) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1SzNiF-0002FH-D6 for qemu-devel@nongnu.org; Thu, 09 Aug 2012 04:03:23 -0400 Message-ID: <50236EC7.6080809@redhat.com> Date: Thu, 09 Aug 2012 10:03:19 +0200 From: Paolo Bonzini MIME-Version: 1.0 References: <502283FA.2080506@profihost.ag> <5022912B.2000607@redhat.com> <50235527.4090804@profihost.ag> <50236059.7060801@redhat.com> <4A799203-5BFF-4DE9-9B85-459096EBEC22@profihost.ag> <50236484.2090702@redhat.com> <502369C7.7000300@profihost.ag> <50236C78.1060801@redhat.com> <1E323297-ABB2-430F-AC32-81AD11660B15@profihost.ag> In-Reply-To: <1E323297-ABB2-430F-AC32-81AD11660B15@profihost.ag> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] virtio-scsi vs. virtio-blk List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Stefan Priebe Cc: qemu-devel , Ronnie Sahlberg Il 09/08/2012 10:00, Stefan Priebe ha scritto: > @writethrough: why not? Because it's slow, and unnecessary if you're running kernel >= 2.6.32 or recent RHEL/CentOS. > @libiscsi Same speed problem with cache=none and with just local lvm disks. Cool, please use these settings while bisecting. Paolo