avg-cpu:  %user   %nice %system %iowait  %steal   %idle
sum	     1.460      0.000    457.260  12600.000      0.000    241.320 
avg	     0.011      0.000      3.438     94.737      0.000      1.814 
stddev	     0.013      0.000      2.902      3.393      0.000      2.477 


Device:         rrqm/s   wrqm/s     r/s     w/s    rkB/s    wkB/s avgrq-sz avgqu-sz   await  svctm  %util
sum	     0.000 2111818.140      7.000  17030.390     28.000 8518668.990 131646.380  18878.610 166925.650   2142.210  13300.210 
avg	     0.000  15878.332      0.053    128.048      0.211  64050.143    989.822    141.944   1255.080     16.107    100.002 
stddev	     0.000   6900.280      0.255     52.382      1.019  26375.996     44.976      8.455    621.879     27.684      0.171