avg-cpu:  %user   %nice %system %iowait  %steal   %idle
sum	     4.960      0.000     96.120   2903.770      0.000  10295.250 
avg	     0.037      0.000      0.723     21.833      0.000     77.408 
stddev	     0.069      0.000      0.524     10.142      0.000     10.416 


Device:         rrqm/s   wrqm/s     r/s     w/s    rkB/s    wkB/s avgrq-sz avgqu-sz   await  svctm  %util
sum	     0.000 1570759.000     52.000  14026.000    208.000 6366288.000 122390.070  18815.640 180932.050   1344.160  13300.800 
avg	     0.000  11810.218      0.391    105.459      1.564  47866.827    920.226    141.471   1360.391     10.106    100.006 
stddev	     0.000   3886.418      0.546     26.534      2.185  11210.664    148.034      4.355    251.734      2.781      0.085