avg-cpu:  %user   %nice %system %iowait  %steal   %idle
sum	     2.120      0.000    505.300  12690.770      0.000    101.730 
avg	     0.016      0.000      3.799     95.419      0.000      0.765 
stddev	     0.035      0.000      1.985      4.919      0.000      3.461 


Device:         rrqm/s   wrqm/s     r/s     w/s    rkB/s    wkB/s avgrq-sz avgqu-sz   await  svctm  %util
sum	     0.000 845216.870     57.000  12862.410    228.000 3427388.600  73744.030   8832.570  92637.560   1781.730  12670.320 
avg	     0.000   6355.014      0.429     96.710      1.714  25769.839    554.466     66.410    696.523     13.396     95.266 
stddev	     0.000   2281.289      0.617     40.567      2.467   9790.388    130.004     47.938    543.035     11.768     10.303