Linux 4.1.38-nrj-desktop-2rosa-i586 (...) avg-cpu: %user %nice %system %iowait %steal %idle 6.38 0.51 2.70 7.96 0.00 82.45 Device: tps kB_read/s kB_wrtn/s kB_read kB_wrtn sda 20.52 766.46 44.22 605172 34912 sdb 0.20 1.38 0.00 1092 0