Dir   Size   BlkSz  Thr#  Read (CPU%)   Write (CPU%)   Seeks (CPU%)
----- ------ ------- ---- ------------- -------------- --------------
/mnt/  254    4096    1   18.3704 10.7% 17.4763 18.5%  304.001 1.11%
/mnt/  254    4096    2   24.2720 15.3% 17.3906 18.8%  401.378 1.67%
/mnt/  254    4096    4   26.8917 17.9% 17.0867 18.8%  440.617 1.95%
/mnt/  254    4096    8   28.2045 20.0% 16.7981 18.9%  483.396 2.12%