avg-cpu:  %user   %nice %system %iowait  %steal   %idle
sum	     3.450      0.000    244.770  18433.400      0.000   1318.360 
avg	     0.017      0.000      1.224     92.167      0.000      6.592 
stddev	     0.043      0.000      0.322     10.886      0.000     10.719 


Device:         rrqm/s   wrqm/s     r/s     w/s    rkB/s    wkB/s avgrq-sz avgqu-sz   await  svctm  %util
sum	258041.000   2009.000   4118.000  18113.000 1048636.000 8710816.000 183154.650  27055.630 262649.010   1926.360  20000.800 
avg	  1290.205     10.045     20.590     90.565   5243.180  43554.080    915.773    135.278   1313.245      9.632    100.004 
stddev	  3512.367     20.528     55.809     24.774  14273.881  11902.935    127.561     20.845    405.142      2.100      0.024