avg-cpu:  %user   %nice %system %iowait  %steal   %idle
sum	     0.280      0.000     61.100   6370.580      0.000   6868.030 
avg	     0.002      0.000      0.459     47.899      0.000     51.639 
stddev	     0.017      0.000      0.215      4.913      0.000      4.949 


Device:         rrqm/s   wrqm/s     r/s     w/s    rkB/s    wkB/s avgrq-sz avgqu-sz   await  svctm  %util
sum	     0.000   4883.750     38.990  37639.170    155.960 5068807.170  42366.070   2426.220  10465.800    585.610  13299.810 
avg	     0.000     36.720      0.293    283.001      1.173  38111.332    318.542     18.242     78.690      4.403     99.999 
stddev	     0.000     98.060      0.455    198.346      1.821   7429.258     90.836      3.704     33.942      1.658      0.156