Dir   Size   BlkSz  Thr#  Read (CPU%)   Write (CPU%)   Seeks (CPU%)
----- ------ ------- ---- ------------- -------------- --------------
/mnt/  254    4096    1   19.0045 13.6% 17.7426 19.1%  308.498 1.61%
/mnt/  254    4096    2   36.0108 27.6% 17.0503 18.7%  591.857 1.47%
/mnt/  254    4096    4   32.9432 24.0% 16.6983 19.1%  526.990 2.50%
/mnt/  254    4096    8   32.9280 28.4% 15.8525 18.2%  688.886 2.58%