avg-cpu:  %user   %nice %system %iowait  %steal   %idle
sum	     0.240      0.000     65.550  13123.150      0.000    111.010 
avg	     0.002      0.000      0.493     98.670      0.000      0.835 
stddev	     0.015      0.000      0.398      2.743      0.000      2.414 


Device:         rrqm/s   wrqm/s     r/s     w/s    rkB/s    wkB/s avgrq-sz avgqu-sz   await  svctm  %util
sum	     0.000 1254733.000     44.000  12870.000    176.000 5060748.000 110252.760  19067.720 202139.210   1423.680  13300.800 
avg	     0.000   9434.083      0.331     96.767      1.323  38050.737    828.968    143.366   1519.844     10.704    100.006 
stddev	     0.000   2364.252      0.486     29.025      1.945   6750.409    167.106      1.208    214.933      1.412      0.069