avg-cpu:  %user   %nice %system %iowait  %steal   %idle
sum	     0.720      0.000    603.940  12652.980      0.000     42.290 
avg	     0.005      0.000      4.541     95.135      0.000      0.318 
stddev	     0.017      0.000      0.597      0.718      0.000      0.238 


Device:         rrqm/s   wrqm/s     r/s     w/s    rkB/s    wkB/s avgrq-sz avgqu-sz   await  svctm  %util
sum	     0.000 1119027.470      5.000   9967.200     20.000 4541762.570 121469.660   4748.000  64261.190   1966.970  13212.610 
avg	     0.000   8413.740      0.038     74.941      0.150  34148.591    913.306     35.699    483.167     14.789     99.343 
stddev	     0.000   2656.999      0.226     19.717      0.905   8670.698     45.160     23.554    338.863      7.322      1.741