avg-cpu:  %user   %nice %system %iowait  %steal   %idle
sum	     2.580      0.000   1008.730  18943.250      0.000     45.400 
avg	     0.013      0.000      5.044     94.716      0.000      0.227 
stddev	     0.038      0.000      3.656      3.935      0.000      1.148 


Device:         rrqm/s   wrqm/s     r/s     w/s    rkB/s    wkB/s avgrq-sz avgqu-sz   await  svctm  %util
sum	257829.000    540.000   4345.000  23593.310 1048696.000 11274618.210 182096.790  28754.510 214571.150   1500.430  19999.920 
avg	  1289.145      2.700     21.725    117.967   5243.480  56373.091    910.484    143.773   1072.856      7.502    100.000 
stddev	  3572.403     15.683     62.471     34.254  14532.261  16434.541    129.071      1.664    247.204      1.460      0.105