Re: [RFC PATCH] cfq-iosched: IOPS mode for group scheduling and newgroup_idle tunable

[Christoph Hellwig]

On Mon, Jul 26, 2010 at 09:43:29AM -0400, Vivek Goyal wrote:
> > Don't know if this is related, but I'm not quite shure if XFS (which I use
> > exclusively) uses the jbd/jbd2 journaling layer at all.
> 
> I also don't know. But because this patch is making a difference with your
> XFS file system performance, may be it does use.
> 
> CCing Christoph, he can tell us.

No, of course XFS doesn't use jbd.

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