avg-cpu:  %user   %nice %system %iowait  %steal   %idle
sum	     8.570      0.000    311.340  16639.080      0.000   3040.990 
avg	     0.043      0.000      1.557     83.195      0.000     15.205 
stddev	     0.060      0.000      0.376     12.355      0.000     12.512 


Device:         rrqm/s   wrqm/s     r/s     w/s    rkB/s    wkB/s avgrq-sz avgqu-sz   await  svctm  %util
sum	253904.000 1576242.420   8044.000  21597.950 1047792.000 6397379.090 117391.280  29107.170 237098.430   1649.900  20000.810 
avg	  1269.520   7881.212     40.220    107.990   5238.960  31986.895    586.956    145.536   1185.492      8.249    100.004 
stddev	  4033.157   3514.586    128.174     37.175  16642.423   9502.029    174.494      5.641    374.029      2.507      0.077