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SubjectRe: Poor interactive performance with I/O loads with fsync()ing
On Sun, 11 Apr 2010, Avi Kivity wrote:

> On 04/09/2010 05:56 PM, Ben Gamari wrote:
> > On Mon, 29 Mar 2010 00:08:58 +0200, Andi Kleen<andi@firstfloor.org> wrote:
> >
> > > Ben Gamari<bgamari.foss@gmail.com> writes:
> > > ext4/XFS/JFS/btrfs should be better in this regard
> > >
> > >
> > I am using btrfs, so yes, I was expecting things to be better.
> > Unfortunately,
> > the improvement seems to be non-existent under high IO/fsync load.
> >
> >
>
> btrfs is known to perform poorly under fsync.

XFS does not do much better. Just moved my VM images back to ext for
that reason.

Thanks,

tglx


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