Re: file system defragmentation

["Bryan J. Smith" <b.j.smith@xxxxxxxx>]

Eric Sandeen <sandeen@xxxxxxx> wrote:
> XFS uses delayed allocation, meaning that blocks for a 
> file are not immediately allocated - this allows the
> allocator to allocate more blocks at a time, and do a more
> efficient job of keeping blocks in a file unfragmented.

XFS further uses extents to allocation different areas of the
disk for small files away from larger files.  This combined
with delayed allocation means that larger files are not put
near small files, and both types (especially small files) are
fit much better.



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