avg-cpu:  %user   %nice %system %iowait  %steal   %idle
sum	    22.300      0.000    520.710  13189.790      0.000     67.270 
avg	     0.162      0.000      3.773     95.578      0.000      0.487 
stddev	     0.048      0.000      0.524      1.621      0.000      1.729 


Device:         rrqm/s   wrqm/s     r/s     w/s    rkB/s    wkB/s avgrq-sz avgqu-sz   await  svctm  %util
sum	     0.000   1479.990     54.000  17594.190    216.000 7163397.230 113346.140  19760.100 157852.060   1201.300  13799.410 
avg	     0.000     10.725      0.391    127.494      1.565  51908.676    821.349    143.189   1143.856      8.705     99.996 
stddev	     0.000     16.652      0.488     38.642      1.952  15291.292    113.886      1.896    233.368      3.176      0.123