From mboxrd@z Thu Jan 1 00:00:00 1970 From: Avi Kivity Subject: Re: sync guest calls made async on host - SQLite performance Date: Sun, 27 Sep 2009 13:37:57 +0200 Message-ID: <4ABF4E95.5070100@redhat.com> References: <4ABC6AA5.6080909@tauceti.net> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Cc: kvm@vger.kernel.org To: RW Return-path: Received: from mx1.redhat.com ([209.132.183.28]:36855 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753823AbZI0LiC (ORCPT ); Sun, 27 Sep 2009 07:38:02 -0400 In-Reply-To: <4ABC6AA5.6080909@tauceti.net> Sender: kvm-owner@vger.kernel.org List-ID: On 09/25/2009 10:00 AM, RW wrote: > I think ext3 with "data=writeback" in a KVM and KVM started > with "if=virtio,cache=none" is a little bit crazy. I don't know > if this is the case with current Ubuntu Alpha but it looks > like so. > It's not crazy, qemu bypasses the cache with cache=none so the ext3 data= setting is immaterial. -- Do not meddle in the internals of kernels, for they are subtle and quick to panic.