avg-cpu:  %user   %nice %system %iowait  %steal   %idle
sum	     4.510      0.000    214.970  15194.420      0.000   4586.000 
avg	     0.023      0.000      1.075     75.972      0.000     22.930 
stddev	     0.049      0.000      0.347     16.898      0.000     17.078 


Device:         rrqm/s   wrqm/s     r/s     w/s    rkB/s    wkB/s avgrq-sz avgqu-sz   await  svctm  %util
sum	253983.000 1787956.120   7973.000  18321.080 1047824.000 7228381.190 148946.980  28563.320 269439.180   1881.230  19999.620 
avg	  1269.915   8939.781     39.865     91.605   5239.120  36141.906    744.735    142.817   1347.196      9.406     99.998 
stddev	  4004.231   2961.711    126.335     26.043  16522.873  10196.825    161.462      2.757    419.558      2.454      0.105