avg-cpu:  %user   %nice %system %iowait  %steal   %idle
sum	     2.860      0.000    146.450  12674.820      0.000   7175.950 
avg	     0.014      0.000      0.732     63.374      0.000     35.880 
stddev	     0.040      0.000      0.299     16.101      0.000     16.133 


Device:         rrqm/s   wrqm/s     r/s     w/s    rkB/s    wkB/s avgrq-sz avgqu-sz   await  svctm  %util
sum	257590.000   6241.000   4562.000  18400.820 1048608.000 8793119.680 181457.280  20540.650 195427.230   1897.020  19999.410 
avg	  1287.950     31.205     22.810     92.004   5243.040  43965.598    907.286    102.703    977.136      9.485     99.997 
stddev	  3557.693     84.762     67.335     25.734  14490.217  12376.794    134.165     24.931    333.855      2.139      0.077