avg-cpu:  %user   %nice %system %iowait  %steal   %idle
sum	    18.940      0.000   8297.870   4977.930      0.000      5.100 
avg	     0.142      0.000     62.390     37.428      0.000      0.038 
stddev	     0.121      0.000     10.499     10.480      0.000      0.114 


Device:         rrqm/s   wrqm/s     r/s     w/s    rkB/s    wkB/s avgrq-sz avgqu-sz   await  svctm  %util
sum	     0.000 1749868.960      9.910  21138.960     39.650 7091873.300  89928.520    333.420   1977.350    512.390   8152.360 
avg	     0.000  13156.909      0.075    158.940      0.298  53322.356    676.154      2.507     14.867      3.853     61.296 
stddev	     0.000   2317.743      0.255     36.628      1.020   9420.993     96.501      2.286     11.456      0.485     12.861