Re: GRIO in Linux XFS?

[Vlad Apostolov <vapo@xxxxxxx>]

Jan Engelhardt wrote:
> > what is the status of GRIO support in the Linux port of XFS?
> >     
griov2 supports XFS Linux/Irix on local and cluster volumes but it is 
not an open source
project. Please check this link for more information:
http://techpubs.sgi.com/library/tpl/cgi-bin/getdoc.cgi/0650/bks/SGI_Admin/books/GRIO2_AG/sgi_html/ch01.html
> Called realtime volume.
> (http://en.wikipedia.org/wiki/XFS section 2.11)
>
>   
> > Also, if the answer is 'non existent', what is the recommended
> > alternative?  I've got an application that needs to stream a
> > huge amount of data to the harddrive without dropping any and
> > without blocking the sender.  We will be pushing the limits
> > of our high-end raid striped disks.  This seems the exactly
> > the type of thing GRIO was made for, but last I heard it was
> > missing from Linux XFS with no plans to add it.  Any change
> > in that?  I know I can get almost there with I/O priorities
> > and the RT features in 2.6... but its not quite the same
> > thing.
> >
> > Apologies if this has been beat to death here or elsewhere...
> > I've googled the heck out of this and rummaged around in the
> > list archives (as much as this fscking corporate firewall will
> > let me) with little result.  I'll gladly RTFM if someone can
> > point me at the right one.  :-/
> >
> > Feel free to CC me on replies, as I read the LKML in digest
> > format.
> >
> > Thanks,
> >
> > Thad Phetteplace
> >
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> >     
>         -`J'
>