avg-cpu:  %user   %nice %system %iowait  %steal   %idle
sum	     3.770      0.000    393.130  12900.150      0.000      2.810 
avg	     0.028      0.000      2.956     96.994      0.000      0.021 
stddev	     0.029      0.000      0.504      0.522      0.000      0.079 


Device:         rrqm/s   wrqm/s     r/s     w/s    rkB/s    wkB/s avgrq-sz avgqu-sz   await  svctm  %util
sum	     0.000    417.000      6.000  18270.000     24.000 8679627.500 126247.750  19043.630 143561.380   1089.770  13300.800 
avg	     0.000      3.135      0.045    137.368      0.180  65260.357    949.231    143.185   1079.409      8.194    100.006 
stddev	     0.000      1.640      0.365     29.302      1.460  13936.957     23.875      1.098    280.558      4.698      0.069