"C. Bergström" writes:
> James C. McPherson wrote:
> > An introduction to btrfs, from somebody who used to work on ZFS:
> >
> > http://www.osnews.com/story/21920/A_Short_History_of_btrfs
> >
> *very* interesting article.. Not sure why James didn't directly link to
> it, but courteous of Valerie Aurora (formerly Henson)
>
> http://lwn.net/Articles/342892/
>
>
In terms of the ZFS comparison, Valerie gets it wrong. ZFS
allocates out of metaslabs and space maps which take arbitrary size as an
argument :
http://src.opensolaris.org/source/xref/onnv/onnv-gate/usr/src/uts/common/fs/zfs/metaslab.c#388
Further reading :
http://blogs.sun.com/bonwick/entry/space_maps
-r
>
>
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