avg-cpu:  %user   %nice %system %iowait  %steal   %idle
sum	     0.530      0.000    573.820   2072.790      0.000   2152.830 
avg	     0.011      0.000     11.955     43.183      0.000     44.851 
stddev	     0.019      0.000      2.561      7.998      0.000      7.855 


Device:         rrqm/s   wrqm/s     r/s     w/s    rkB/s    wkB/s avgrq-sz avgqu-sz   await  svctm  %util
sum	     0.000 460277.490     14.760   4548.800     59.050 1859572.620  39546.920   8333.570  90708.430    571.290   4799.940 
avg	     0.000   9589.114      0.307     94.767      1.230  38741.096    823.894    173.616   1889.759     11.902     99.999 
stddev	     0.000   3596.044      0.380     28.891      1.518  11928.909    123.239     13.170    297.381      5.095      0.027