avg-cpu:  %user   %nice %system %iowait  %steal   %idle
sum	    98.520      0.000    464.400   2888.920      0.000  16548.170 
avg	     0.493      0.000      2.322     14.445      0.000     82.741 
stddev	     0.171      0.000      0.836      4.583      0.000      5.285 


Device:         rrqm/s   wrqm/s     r/s     w/s    rkB/s    wkB/s avgrq-sz avgqu-sz   await  svctm  %util
sum	     0.000 2324227.060     75.000  20148.280    300.000 9373676.350 186889.200  37091.660 377617.280   2083.490  20000.020 
avg	     0.000  11621.135      0.375    100.741      1.500  46868.382    934.446    185.458   1888.086     10.417    100.000 
stddev	     0.000   4109.988      0.484     21.509      1.936  10813.479    129.023      2.104    708.599      2.536      0.130