avg-cpu:  %user   %nice %system %iowait  %steal   %idle
sum	    21.490      0.000    894.860  12743.610      0.000    140.090 
avg	     0.156      0.000      6.484     92.345      0.000      1.015 
stddev	     0.056      0.000      1.477      4.035      0.000      4.207 


Device:         rrqm/s   wrqm/s     r/s     w/s    rkB/s    wkB/s avgrq-sz avgqu-sz   await  svctm  %util
sum	     0.000 1968605.000      6.000  16171.000     24.000 8017540.000 136119.300  19029.930 171974.360   1507.170  13744.400 
avg	     0.000  14265.254      0.043    117.181      0.174  58098.116    986.372    137.898   1246.191     10.922     99.597 
stddev	     0.000   6401.349      0.266     40.089      1.063  20155.052     26.810     20.679    461.350      8.173      4.751