FIO

gistfile1.txt

random-read: (groupid=0, jobs=1): err= 0: pid=8378: Mon Jan  5 15:15:17 2015
  write: io=131072KB, bw=910222KB/s, iops=227555 , runt=   144msec
    clat (usec): min=2 , max=33 , avg= 2.82, stdev= 0.80
     lat (usec): min=2 , max=33 , avg= 2.90, stdev= 0.79
    clat percentiles (usec):
     |  1.00th=[    2],  5.00th=[    2], 10.00th=[    2], 20.00th=[    2],
     | 30.00th=[    2], 40.00th=[    3], 50.00th=[    3], 60.00th=[    3],
     | 70.00th=[    3], 80.00th=[    3], 90.00th=[    3], 95.00th=[    4],
     | 99.00th=[    5], 99.50th=[    6], 99.90th=[    9], 99.95th=[   11],
     | 99.99th=[   15]
    lat (usec) : 4=91.37%, 10=8.54%, 20=0.08%, 50=0.01%
  cpu          : usr=17.48%, sys=81.82%, ctx=16, majf=0, minf=24
  IO depths    : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     submit    : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
     complete  : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
     issued    : total=r=0/w=32768/d=0, short=r=0/w=0/d=0

Run status group 0 (all jobs):
  WRITE: io=131072KB, aggrb=910222KB/s, minb=910222KB/s, maxb=910222KB/s, mint=144msec, maxt=144msec

Disk stats (read/write):
    md0: ios=0/0, merge=0/0, ticks=0/0, in_queue=0, util=0.00%, aggrios=0/0, aggrmerge=0/0, aggrticks=0/0, aggrin_queue=0, aggrutil=0.00%
  fioa: ios=0/0, merge=0/0, ticks=0/0, in_queue=0, util=0.00%
  fiob: ios=0/0, merge=0/0, ticks=0/0, in_queue=0, util=0.00%