avg-cpu:  %user   %nice %system %iowait  %steal   %idle
sum	     0.500      0.000    255.110   3021.130      0.000  10023.250 
avg	     0.004      0.000      1.918     22.715      0.000     75.363 
stddev	     0.026      0.000      0.680      9.229      0.000      9.646 


Device:         rrqm/s   wrqm/s     r/s     w/s    rkB/s    wkB/s avgrq-sz avgqu-sz   await  svctm  %util
sum	     0.000 1558612.290      5.000  12326.080     20.000 6278176.550 135418.390  18850.430 203387.610   1434.850  13299.410 
avg	     0.000  11718.889      0.038     92.677      0.150  47204.335   1018.183    141.733   1529.230     10.788     99.996 
stddev	     0.000   1618.100      0.226      1.597      0.905   1125.136     10.317      2.900     73.110      0.189      0.105