Re: The XFS real-time subvolume in Linux

[Steve Lord <lord@xxxxxxx>]

Andi Kleen wrote:
> Eric Sandeen <sandeen@xxxxxxx> writes:
>
> > That is basically true, yes.  There is a non-free GRIOV2 product in
> > use with CXFS, but for your purposes, I think it is safe to say that
> > there is no standalone GRIO equivalent on Linux.
>
> It's not. In fact it's a standard feature now.
>
> The CFQ2 IO scheduler has IO priorities settable with ionice, including
> a RT class with 8 priorities.
>
> It's not available in SLES9 though, only in newer kernels (2.6.13+)
> and SUSE releases (like SL10.0) 
>
> -Andi
Ah, but is there a bandwidth reservation system to go with it? That is
the missing link here, being able to say 'I need 10 Mbytes/sec until
further notice'.

Steve