linux-kernel - Re: GRIO in Linux XFS?

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Message-ID: <Pine.LNX.4.61.0610112129060.9822@yvahk01.tjqt.qr>
Date:	Wed, 11 Oct 2006 21:30:27 +0200 (MEST)
From:	Jan Engelhardt <jengelh@...ux01.gwdg.de>
To:	"Phetteplace, Thad (GE Healthcare, consultant)" 
	<Thad.Phetteplace@...com>
cc:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	xfs@....sgi.com
Subject: Re: GRIO in Linux XFS?

>
>what is the status of GRIO support in the Linux port of XFS?

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'
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