Linux 4.15.0-29-generic (...) avg-cpu: %user %nice %system %iowait %steal %idle 0.17 0.00 0.14 0.13 0.00 99.55 Device tps kB_read/s kB_wrtn/s kB_read kB_wrtn loop0 0.00 0.03 0.00 1150 0 loop1 0.00 0.04 0.00 1516 0 loop2 0.00 0.03 0.00 1095 0 loop3 0.00 0.03 0.00 1134 0 loop4 0.00 0.03 0.00 1188 0 loop5 0.01 0.03 0.00 1228 0 loop6 0.00 0.00 0.00 8 0 sda 38.30 131.27 33155.24 5348431 1350907492 sdb 0.00 0.08 0.00 3232 0