avg-cpu:  %user   %nice %system %iowait  %steal   %idle
sum	     3.000      0.000    346.550  12916.900      0.000     33.430 
avg	     0.023      0.000      2.606     97.120      0.000      0.251 
stddev	     0.029      0.000      0.480      0.492      0.000      0.100 


Device:         rrqm/s   wrqm/s     r/s     w/s    rkB/s    wkB/s avgrq-sz avgqu-sz   await  svctm  %util
sum	     0.000    984.000     32.000  12936.000    128.000 4159568.000  85343.900   6383.520  66044.830   1565.290  12981.600 
avg	     0.000      7.398      0.241     97.263      0.962  31274.947    641.683     47.996    496.578     11.769     97.606 
stddev	     0.000      2.650      0.427     30.957      1.710  10293.025     76.493     25.230    303.765      6.305      4.254