avg-cpu:  %user   %nice %system %iowait  %steal   %idle
sum	     0.840      0.000    567.620   5441.980      0.000   7289.620 
avg	     0.006      0.000      4.268     40.917      0.000     54.809 
stddev	     0.011      0.000      1.883     16.335      0.000     17.913 


Device:         rrqm/s   wrqm/s     r/s     w/s    rkB/s    wkB/s avgrq-sz avgqu-sz   await  svctm  %util
sum	     0.000 2514375.950      7.000  19865.950     28.000 10134405.590 135594.720  18748.780 126444.860    920.910  13298.820 
avg	     0.000  18905.082      0.053    149.368      0.211  76198.538   1019.509    140.968    950.713      6.924     99.991 
stddev	     0.000   3298.260      0.283     15.676      1.131   8103.815     11.631      6.691    135.272      2.607      0.148