Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753025Ab0GLUYh (ORCPT ); Mon, 12 Jul 2010 16:24:37 -0400 Received: from mx1.redhat.com ([209.132.183.28]:57058 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752449Ab0GLUYf (ORCPT ); Mon, 12 Jul 2010 16:24:35 -0400 Date: Mon, 12 Jul 2010 16:24:25 -0400 From: Josef Bacik To: Giangiacomo Mariotti Cc: Josef Bacik , Michael Tokarev , linux-kernel@vger.kernel.org, linux-fsdevel , qemu-devel Subject: Re: BTRFS: Unbelievably slow with kvm/qemu Message-ID: <20100712202424.GC2881@localhost.localdomain> References: <4C3ABF96.9070405@msgid.tls.msk.ru> <20100712134347.GB15754@dhcp231-156.rdu.redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: User-Agent: Mutt/1.5.19 (2009-01-05) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 811 Lines: 22 On Mon, Jul 12, 2010 at 10:23:14PM +0200, Giangiacomo Mariotti wrote: > On Mon, Jul 12, 2010 at 3:43 PM, Josef Bacik wrote: > > > > O_DIRECT support was just introduced recently, please try on the latest kernel > > with the normal settings (which IIRC uses O_DIRECT), that should make things > > suck alot less. ?Thanks, > > > > Josef > > > With latest kernel do you mean the current Linus' git tree? Because if > instead you're talking about the current stable kernel, that's the one > I used on my test. > Yes Linus' git tree. Thanks, Josef -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/