avg-cpu:  %user   %nice %system %iowait  %steal   %idle
sum	     0.320      0.000    478.730   1659.190      0.000   1861.740 
avg	     0.008      0.000     11.968     41.480      0.000     46.544 
stddev	     0.016      0.000      2.631      9.140      0.000      8.626 


Device:         rrqm/s   wrqm/s     r/s     w/s    rkB/s    wkB/s avgrq-sz avgqu-sz   await  svctm  %util
sum	     0.000 378749.740     11.270   3652.230     44.980 1475102.080  32655.010   6547.060  75000.710    489.830   3978.380 
avg	     0.000   9468.744      0.282     91.306      1.125  36877.552    816.375    163.676   1875.018     12.246     99.460 
stddev	     0.000   3751.896      0.308     27.261      1.233  10006.192    114.018     25.534    465.060      5.507      3.381