avg-cpu:  %user   %nice %system %iowait  %steal   %idle
sum	    18.480      0.000    852.200  12803.140      0.000    126.100 
avg	     0.134      0.000      6.175     92.776      0.000      0.914 
stddev	     0.049      0.000      1.425      5.805      0.000      5.865 


Device:         rrqm/s   wrqm/s     r/s     w/s    rkB/s    wkB/s avgrq-sz avgqu-sz   await  svctm  %util
sum	     0.000 1895578.000      6.000  15546.000     24.000 7709076.000 136592.300  17346.620 163809.560   1494.290  13748.000 
avg	     0.000  13736.072      0.043    112.652      0.174  55862.870    989.799    125.700   1187.026     10.828     99.623 
stddev	     0.000   8032.079      0.237     41.263      0.947  20635.191     22.819     25.583    421.895      6.088      4.447