avg-cpu:  %user   %nice %system %iowait  %steal   %idle
sum	     0.510      0.000    251.850   3444.580      0.000   9603.110 
avg	     0.004      0.000      1.894     25.899      0.000     72.204 
stddev	     0.022      0.000      0.642      6.830      0.000      7.204 


Device:         rrqm/s   wrqm/s     r/s     w/s    rkB/s    wkB/s avgrq-sz avgqu-sz   await  svctm  %util
sum	     0.000 1563754.290      5.000  12327.070     20.000 6297731.490 135838.050  19010.690 205511.280   1434.710  13299.410 
avg	     0.000  11757.551      0.038     92.685      0.150  47351.365   1021.339    142.938   1545.198     10.787     99.996 
stddev	     0.000   1195.662      0.226      1.534      0.905    872.642      6.293      1.090    180.091      0.176      0.092