avg-cpu:  %user   %nice %system %iowait  %steal   %idle
sum	     5.390      0.000    135.120   2579.180      0.000  10580.270 
avg	     0.041      0.000      1.016     19.392      0.000     79.551 
stddev	     0.063      0.000      0.591      5.784      0.000      5.980 


Device:         rrqm/s   wrqm/s     r/s     w/s    rkB/s    wkB/s avgrq-sz avgqu-sz   await  svctm  %util
sum	     0.000 1602669.000     53.000  14327.000    212.000 6477772.000 123323.970  18973.000 180752.930   1328.450  13300.800 
avg	     0.000  12050.143      0.398    107.722      1.594  48705.053    927.248    142.654   1359.045      9.988    100.006 
stddev	     0.000   4640.549      0.505     30.013      2.019   9589.665    129.343      2.510    279.446      2.789      0.120