Linux 4.9.95-nrj-desktop-2rosa-i586 (...) avg-cpu: %user %nice %system %iowait %steal %idle 20.58 0.04 2.63 2.95 0.00 73.79 Device: tps kB_read/s kB_wrtn/s kB_read kB_wrtn sda 10.75 250.58 628.17 941227 2359524 sdb 0.09 2.63 0.01 9888 36