avg-cpu:  %user   %nice %system %iowait  %steal   %idle
sum	     0.960      0.000    275.200   5311.340      0.000   7712.540 
avg	     0.007      0.000      2.069     39.935      0.000     57.989 
stddev	     0.031      0.000      0.800     14.896      0.000     15.477 


Device:         rrqm/s   wrqm/s     r/s     w/s    rkB/s    wkB/s avgrq-sz avgqu-sz   await  svctm  %util
sum	     0.000      3.000      3.000   7214.000     12.000 843329.000  31050.130  19077.200 351581.750   2523.240  13300.400 
avg	     0.000      0.023      0.023     54.241      0.090   6340.820    233.460    143.438   2643.472     18.972    100.003 
stddev	     0.000      0.148      0.259      6.993      1.037    847.195      3.104      1.860    198.744      4.344      0.125