avg-cpu:  %user   %nice %system %iowait  %steal   %idle
sum	     1.260      0.000    888.820  12407.320      0.000      2.510 
avg	     0.009      0.000      6.683     93.288      0.000      0.019 
stddev	     0.022      0.000      1.597      1.607      0.000      0.090 


Device:         rrqm/s   wrqm/s     r/s     w/s    rkB/s    wkB/s avgrq-sz avgqu-sz   await  svctm  %util
sum	     0.000 1130942.000      5.000  11423.000     20.000 4588588.000 107197.720   4312.560  50781.750   1635.120  13298.000 
avg	     0.000   8503.323      0.038     85.887      0.150  34500.662    805.998     32.425    381.818     12.294     99.985 
stddev	     0.000   2483.267      0.226     17.984      0.905   6693.081     41.548     21.536    271.277      3.298      0.222