avg-cpu:  %user   %nice %system %iowait  %steal   %idle
sum	     1.620      0.000    236.430  11982.220      0.000   1079.920 
avg	     0.012      0.000      1.778     90.092      0.000      8.120 
stddev	     0.012      0.000      0.961      9.923      0.000      9.622 


Device:         rrqm/s   wrqm/s     r/s     w/s    rkB/s    wkB/s avgrq-sz avgqu-sz   await  svctm  %util
sum	     0.000 1224405.230      5.000  10848.380     20.000 4933703.800 114429.290   3393.540  39885.470   1703.480   9333.620 
avg	     0.000   9206.054      0.038     81.567      0.150  37095.517    860.371     25.515    299.891     12.808     70.178 
stddev	     0.000   5146.609      0.190     42.943      0.761  20627.160    239.850     30.293    361.760     23.331     31.165