(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
