avg-cpu:  %user   %nice %system %iowait  %steal   %idle
sum	     3.830      0.000    256.990   7595.830      0.000  12143.280 
avg	     0.019      0.000      1.285     37.979      0.000     60.716 
stddev	     0.047      0.000      0.548     10.125      0.000     10.271 


Device:         rrqm/s   wrqm/s     r/s     w/s    rkB/s    wkB/s avgrq-sz avgqu-sz   await  svctm  %util
sum	258042.000    212.000   4122.000  21371.990 1048656.000 10917906.930 194815.510  28632.740 237586.950   1682.080  19999.910 
avg	  1290.210      1.060     20.610    106.860   5243.280  54589.535    974.078    143.164   1187.935      8.410    100.000 
stddev	  3831.743      3.328     61.016     32.761  15568.236  16769.925    137.400      2.369    315.965      2.059      0.075