avg-cpu:  %user   %nice %system %iowait  %steal   %idle
sum	    21.930      0.000    944.570  12730.170      0.000    103.490 
avg	     0.159      0.000      6.845     92.248      0.000      0.750 
stddev	     0.046      0.000      1.783      5.750      0.000      5.821 


Device:         rrqm/s   wrqm/s     r/s     w/s    rkB/s    wkB/s avgrq-sz avgqu-sz   await  svctm  %util
sum	     0.000 1857666.370      6.000  15311.240     24.000 7569312.280 135181.310  17311.860 167519.180   1592.620  13697.010 
avg	     0.000  13461.351      0.043    110.951      0.174  54850.089    979.575    125.448   1213.907     11.541     99.254 
stddev	     0.000   8662.993      0.237     46.759      0.947  23185.570     89.057     26.768    461.138      7.420      8.483