avg-cpu:  %user   %nice %system %iowait  %steal   %idle
sum	    19.820      0.000    819.390  12895.050      0.000     65.750 
avg	     0.144      0.000      5.938     93.442      0.000      0.476 
stddev	     0.055      0.000      1.121      3.535      0.000      3.602 


Device:         rrqm/s   wrqm/s     r/s     w/s    rkB/s    wkB/s avgrq-sz avgqu-sz   await  svctm  %util
sum	     0.000 1569914.970     50.000  15889.840    200.000 6410237.860 113235.720  19674.710 176720.780   1403.020  13707.410 
avg	     0.000  11376.195      0.362    115.144      1.449  46450.999    820.549    142.570   1280.585     10.167     99.329 
stddev	     0.000   5295.418      0.496     43.510      1.982  17571.103    161.825     16.987    365.866      5.083      7.803