avg-cpu:  %user   %nice %system %iowait  %steal   %idle
sum	     4.380      0.000    225.370  19081.610      0.000    688.620 
avg	     0.022      0.000      1.127     95.408      0.000      3.443 
stddev	     0.048      0.000      0.556      8.525      0.000      8.129 


Device:         rrqm/s   wrqm/s     r/s     w/s    rkB/s    wkB/s avgrq-sz avgqu-sz   await  svctm  %util
sum	257975.000   2255.990   4184.000  18265.080 1048636.000 8770746.220 182643.180  27629.350 262708.190   1904.260  20000.010 
avg	  1289.875     11.280     20.920     91.325   5243.180  43853.731    913.216    138.147   1313.541      9.521    100.000 
stddev	  3505.024     20.451     56.940     24.708  14249.382  11821.719    127.716     16.060    319.468      1.990      0.077