avg-cpu:  %user   %nice %system %iowait  %steal   %idle
sum	     0.250      0.000    396.990  12174.780      0.000    727.760 
avg	     0.002      0.000      2.985     91.540      0.000      5.472 
stddev	     0.009      0.000      0.431      5.064      0.000      5.072 


Device:         rrqm/s   wrqm/s     r/s     w/s    rkB/s    wkB/s avgrq-sz avgqu-sz   await  svctm  %util
sum	     0.000 2109508.450      6.000  16996.820     24.000 8507052.790 132940.240  18188.480 145390.390   1137.250  13300.820 
avg	     0.000  15860.966      0.045    127.796      0.180  63962.803    999.551    136.755   1093.161      8.551    100.006 
stddev	     0.000   5972.946      0.241     28.931      0.964  14639.894     16.636     15.739    264.596      3.449      0.141