avg-cpu:  %user   %nice %system %iowait  %steal   %idle
sum	     3.240      0.000    606.580  12688.810      0.000      1.240 
avg	     0.024      0.000      4.561     95.405      0.000      0.009 
stddev	     0.025      0.000      1.028      1.035      0.000      0.048 


Device:         rrqm/s   wrqm/s     r/s     w/s    rkB/s    wkB/s avgrq-sz avgqu-sz   await  svctm  %util
sum	     0.000 1743281.000      5.000  15394.000     20.000 7046768.000 121417.300  17151.530 158055.580   1441.720  13300.000 
avg	     0.000  13107.376      0.038    115.744      0.150  52983.218    912.912    128.959   1188.388     10.840    100.000 
stddev	     0.000   7346.242      0.257     42.589      1.030  19603.625     55.387     20.905    409.116      8.169      0.069