Dir   Size   BlkSz  Thr#  Read (CPU%)   Write (CPU%)   Seeks (CPU%)
----- ------ ------- ---- ------------- -------------- --------------
/mnt/  254    4096    1   18.8787 11.8% 17.7891 18.7%  308.014 1.36%
/mnt/  254    4096    2   24.8131 16.6% 17.6144 18.9%  401.099 1.53%
/mnt/  254    4096    4   26.7307 18.8% 17.2535 19.0%  438.478 1.79%
/mnt/  254    4096    8   28.2432 20.8% 16.8954 18.9%  481.571 2.04%