From mboxrd@z Thu Jan 1 00:00:00 1970 From: Giangiacomo Mariotti Subject: Re: BTRFS: Unbelievably slow with kvm/qemu Date: Mon, 12 Jul 2010 22:23:14 +0200 Message-ID: References: <4C3ABF96.9070405@msgid.tls.msk.ru> <20100712134347.GB15754@dhcp231-156.rdu.redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Cc: Michael Tokarev , linux-kernel@vger.kernel.org, linux-fsdevel , qemu-devel To: Josef Bacik Return-path: Received: from mail-ww0-f44.google.com ([74.125.82.44]:41921 "EHLO mail-ww0-f44.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751352Ab0GLUXQ convert rfc822-to-8bit (ORCPT ); Mon, 12 Jul 2010 16:23:16 -0400 In-Reply-To: <20100712134347.GB15754@dhcp231-156.rdu.redhat.com> Sender: linux-fsdevel-owner@vger.kernel.org List-ID: On Mon, Jul 12, 2010 at 3:43 PM, Josef Bacik wrote: > > O_DIRECT support was just introduced recently, please try on the late= st kernel > with the normal settings (which IIRC uses O_DIRECT), that should make= things > suck alot less. =C2=A0Thanks, > > 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. --=20 Giangiacomo -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel= " in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html