Well... turns out ubuntu already has [http://packages.ubuntu.com/dapper/admin/readahead readahead].  But it doesn't use a tarball.  So I imagine it is seeking all over the disk, and there is still room for improvement.
 
Well... turns out ubuntu already has [http://packages.ubuntu.com/dapper/admin/readahead readahead].  But it doesn't use a tarball.  So I imagine it is seeking all over the disk, and there is still room for improvement.
   Exception encountered, of type "Error"