avg-cpu:  %user   %nice %system %iowait  %steal   %idle
sum	    17.320      0.000    557.520  13073.620      0.000     51.450 
avg	     0.126      0.000      4.069     95.428      0.000      0.376 
stddev	     0.042      0.000      0.557      1.620      0.000      1.687 


Device:         rrqm/s   wrqm/s     r/s     w/s    rkB/s    wkB/s avgrq-sz avgqu-sz   await  svctm  %util
sum	     0.000     67.000      6.000  17384.000     24.000 8474662.000 133872.550  18813.810 157406.050   1320.280  13700.400 
avg	     0.000      0.489      0.044    126.891      0.175  61858.847    977.172    137.327   1148.949      9.637    100.003 
stddev	     0.000      0.929      0.433     43.758      1.734  21269.326     38.068     20.982    411.621      5.528      0.102