avg-cpu:  %user   %nice %system %iowait  %steal   %idle
sum	     2.250      0.000    253.910   4347.380      0.000   8696.450 
avg	     0.017      0.000      1.909     32.687      0.000     65.387 
stddev	     0.047      0.000      0.540      9.792      0.000     10.168 


Device:         rrqm/s   wrqm/s     r/s     w/s    rkB/s    wkB/s avgrq-sz avgqu-sz   await  svctm  %util
sum	     0.000 1409504.370     45.990  13448.030    183.960 5648975.840 115360.080  19059.800 189804.840   1345.000  13299.810 
avg	     0.000  10597.777      0.346    101.113      1.383  42473.503    867.369    143.307   1427.104     10.113     99.999 
stddev	     0.000   3281.613      0.521     19.636      2.083   4631.572    165.880      1.104    175.375      1.358      0.121