avg-cpu:  %user   %nice %system %iowait  %steal   %idle
sum	    22.270      0.000    952.220  12716.550      0.000    108.950 
avg	     0.161      0.000      6.900     92.149      0.000      0.789 
stddev	     0.051      0.000      1.592      5.527      0.000      5.536 


Device:         rrqm/s   wrqm/s     r/s     w/s    rkB/s    wkB/s avgrq-sz avgqu-sz   await  svctm  %util
sum	     0.000 1853345.960      5.000  15249.640     20.000 7539779.760 136304.170  17339.810 169363.720   1528.400  13767.410 
avg	     0.000  13430.043      0.036    110.505      0.145  54636.085    987.711    125.651   1227.273     11.075     99.764 
stddev	     0.000   8352.368      0.253     39.993      1.011  19812.709     18.080     23.948    461.016      6.614      2.681