avg-cpu:  %user   %nice %system %iowait  %steal   %idle
sum	     0.250      0.000    113.730  12971.980      0.000    213.940 
avg	     0.002      0.000      0.855     97.534      0.000      1.609 
stddev	     0.015      0.000      0.193      4.496      0.000      4.414 


Device:         rrqm/s   wrqm/s     r/s     w/s    rkB/s    wkB/s avgrq-sz avgqu-sz   await  svctm  %util
sum	     0.000 870188.050     30.000  13692.990    120.000 3535467.520  70825.450   5051.470  48416.740   1335.100  13299.410 
avg	     0.000   6542.767      0.226    102.955      0.902  26582.463    532.522     37.981    364.036     10.038     99.996 
stddev	     0.000    793.069      0.436     19.680      1.742   2847.777    100.900     10.779     70.730      1.853      0.105