avg-cpu:  %user   %nice %system %iowait  %steal   %idle
sum	     0.000      0.000     50.860  12958.320      0.000    290.860 
avg	     0.000      0.000      0.382     97.431      0.000      2.187 
stddev	     0.000      0.000      0.252      5.738      0.000      5.558 


Device:         rrqm/s   wrqm/s     r/s     w/s    rkB/s    wkB/s avgrq-sz avgqu-sz   await  svctm  %util
sum	     0.000 1134256.000      4.000  11797.000     16.000 4581768.000 103415.240  15913.320 180461.670   1513.120  13300.000 
avg	     0.000   8528.241      0.030     88.699      0.120  34449.383    777.558    119.649   1356.855     11.377    100.000 
stddev	     0.000   5695.137      0.210      8.604      0.841   3289.983     38.753     32.644    399.235      1.112      0.049