avg-cpu:  %user   %nice %system %iowait  %steal   %idle
sum	    56.690      0.000    435.370   7942.120      0.000   4865.780 
avg	     0.426      0.000      3.273     59.715      0.000     36.585 
stddev	     0.092      0.000      0.772     10.793      0.000     11.028 


Device:         rrqm/s   wrqm/s     r/s     w/s    rkB/s    wkB/s avgrq-sz avgqu-sz   await  svctm  %util
sum	     0.000 1311529.980     41.990  12919.330    167.960 5302081.360 113203.110  19084.910 199391.490   1405.430  13299.830 
avg	     0.000   9861.128      0.316     97.138      1.263  39865.273    851.151    143.496   1499.184     10.567     99.999 
stddev	     0.000   2987.452      0.481     21.551      1.923   4121.084    157.904      1.303    187.408      1.440      0.158