From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from [140.186.70.92] (port=51011 helo=eggs.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1OMlAK-0003nD-Pd for qemu-devel@nongnu.org; Thu, 10 Jun 2010 13:03:41 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.69) (envelope-from ) id 1OMlAJ-0004Qe-MI for qemu-devel@nongnu.org; Thu, 10 Jun 2010 13:03:40 -0400 Received: from mx1.redhat.com ([209.132.183.28]:32485) by eggs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1OMlAJ-0004QT-Ei for qemu-devel@nongnu.org; Thu, 10 Jun 2010 13:03:39 -0400 Received: from int-mx01.intmail.prod.int.phx2.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) by mx1.redhat.com (8.13.8/8.13.8) with ESMTP id o5AH3bll000487 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK) for ; Thu, 10 Jun 2010 13:03:37 -0400 Message-ID: <4C111AE7.7040702@redhat.com> Date: Thu, 10 Jun 2010 19:03:35 +0200 From: Paolo Bonzini MIME-Version: 1.0 References: <1275497729-13120-1-git-send-email-armbru@redhat.com> <1275497729-13120-14-git-send-email-armbru@redhat.com> <4C110579.2040208@redhat.com> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Subject: [Qemu-devel] Re: [PATCH 13/13] blockdev: New -blockdev to define a host block device List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Markus Armbruster Cc: kwolf@redhat.com, qemu-devel@nongnu.org, kraxel@redhat.com On 06/10/2010 06:32 PM, Markus Armbruster wrote: > I understand why that's the most sensible cache setting. But if the > user explicitly asks for something else, I think we better give it to > him, or tell him no. Ignoring him silently isn't nice. Ah, it's clearer now... I guess one could use cache=something together with snapshot to do benchmarking. Actually the same changes in behavior (unsafe as default, but observe a non-default value) can be done to -drive ...,snapshot too. Maybe I'll give it a shot. Paolo