avg-cpu:  %user   %nice %system %iowait  %steal   %idle
sum	     4.220      0.000   2373.610   1697.160      0.000  15925.010 
avg	     0.021      0.000     11.868      8.486      0.000     79.625 
stddev	     0.037      0.000      3.323      4.162      0.000      3.831 


Device:         rrqm/s   wrqm/s     r/s     w/s    rkB/s    wkB/s avgrq-sz avgqu-sz   await  svctm  %util
sum	     0.000 1208694.430      8.150  14036.670     32.580 4892107.450 137997.990  13242.030 182718.050   2954.480  17539.390 
avg	     0.000   6043.472      0.041     70.183      0.163  24460.537    689.990     66.210    913.590     14.772     87.697 
stddev	     0.000   4424.235      0.196     24.031      0.784   8995.573     91.914     36.686    544.275     11.632     21.421