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[Qemu-devel] Re: BTRFS: Unbelievably slow with kvm/qemu


From: Josef Bacik
Subject: [Qemu-devel] Re: BTRFS: Unbelievably slow with kvm/qemu
Date: Mon, 12 Jul 2010 09:49:11 -0400
User-agent: Mutt/1.5.19 (2009-01-05)

On Mon, Jul 12, 2010 at 05:42:04PM +0400, Michael Tokarev wrote:
> 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,
> 
> Um.  Do you mean it were introduced in BTRFS or general? :)
> 
> Because, wel, O_DIRECT is here and supported since some 2.2 times... ;)

Btrfs obviously.

Josef



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