avg-cpu:  %user   %nice %system %iowait  %steal   %idle
sum	     0.500      0.000     78.930  13127.290      0.000     93.320 
avg	     0.004      0.000      0.593     98.701      0.000      0.702 
stddev	     0.021      0.000      0.323      2.929      0.000      2.710 


Device:         rrqm/s   wrqm/s     r/s     w/s    rkB/s    wkB/s avgrq-sz avgqu-sz   await  svctm  %util
sum	     0.000 1428014.000      4.000  11993.000     16.000 5759880.000 127795.580  18163.090 201870.280   1477.370  13300.800 
avg	     0.000  10736.947      0.030     90.173      0.120  43307.368    960.869    136.565   1517.822     11.108    100.006 
stddev	     0.000   4306.482      0.210      4.118      0.841   1863.696     31.449     18.451    225.910      0.482      0.069