avg-cpu:  %user   %nice %system %iowait  %steal   %idle
sum	    71.900      0.000    321.400   1881.730      0.000  11025.040 
avg	     0.541      0.000      2.417     14.148      0.000     82.895 
stddev	     0.198      0.000      0.965      4.182      0.000      4.928 


Device:         rrqm/s   wrqm/s     r/s     w/s    rkB/s    wkB/s avgrq-sz avgqu-sz   await  svctm  %util
sum	     0.000 1539908.410     51.000  13325.330    204.000 6195170.890 124098.680  24782.020 253859.020   1403.430  13299.810 
avg	     0.000  11578.259      0.383    100.190      1.534  46580.232    933.073    186.331   1908.714     10.552     99.999 
stddev	     0.000   4187.183      0.545     22.943      2.178  11590.898    126.492      2.735    771.941      2.721      0.110