Dir   Size   BlkSz  Thr#  Read (CPU%)   Write (CPU%)   Seeks (CPU%)
----- ------ ------- ---- ------------- -------------- --------------
/mnt/  254    4096    1   18.8802 11.5% 17.8529 18.8%  311.517 1.11%
/mnt/  254    4096    2   24.5478 16.8% 17.6295 19.1%  402.500 1.50%
/mnt/  254    4096    4   27.0875 18.8% 17.3009 19.0%  438.994 1.79%
/mnt/  254    4096    8   28.2861 20.1% 16.9766 19.0%  481.836 2.08%