Fragmentation on XFS

Rob Bosch robbosch at
Mon Feb 25 16:26:26 GMT 2008

> Though, did I get the right impression that NTFS generates lots of
> extents for small writes even when nothing else is running?

The fragmentation on NTFS was a problem even when nothing else was running
on the server.  The preallocation patch made all the difference on NTFS and
cygwin.  In that world it is a must have since it increases performance on
the reads by orders of magnitude while not impacting the write-side since
the cygwin posix_fallocate is very efficient. 


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