Jeff,
It's worth a look. I'll look at it and let you know what I think.
Jeff
Jeff Garzik wrote:
>
> (moved to linux-fsdevel)
>
> SGI's XFS white paper[1] describes
>
> > XFS delays allocation of user data blocks when possible to
> > make blocks more contiguous; holding them in the buffer cache.
> > This allows XFS to make extents large without requiring the user
> > to specify extent size, and without requiring a filesystem
> > reorganizer to fix the extent sizes after the fact. This also
> > reduces the number of writes to disk and extents used for a file.
>
> Is this sort of manipulation possible with the existing buffer cache?
>
> Regards,
>
> Jeff
>
> [1] http://www.sgi.com/Technology/xfs-whitepaper.html