avg-cpu:  %user   %nice %system %iowait  %steal   %idle
sum	     5.660      0.000    247.220  13445.540      0.000   6301.530 
avg	     0.028      0.000      1.236     67.228      0.000     31.508 
stddev	     0.053      0.000      0.441     14.525      0.000     14.555 


Device:         rrqm/s   wrqm/s     r/s     w/s    rkB/s    wkB/s avgrq-sz avgqu-sz   await  svctm  %util
sum	256903.000    523.000   5259.000  20857.450 1048648.000 10569305.870 191856.850  27741.490 234401.620   1696.220  19999.220 
avg	  1284.515      2.615     26.295    104.287   5243.240  52846.529    959.284    138.707   1172.008      8.481     99.996 
stddev	  3773.207      5.456     86.628     31.030  15416.596  15739.680    159.767     16.857    302.508      2.063      0.104