randread: (g=0): rw=randread, bs=4K-4K/4K-4K/4K-4K, ioengine=libaio, iodepth=64
fio-2.2.5
Starting 1 process
randread: Laying out IO file(s) (1 file(s) / 1024MB)

randread: (groupid=0, jobs=1): err= 0: pid=2994: Sun Feb 22 20:55:22 2015
  read : io=1024.0MB, bw=18463KB/s, iops=4615, runt= 56794msec
    slat (usec): min=6, max=40725, avg=15.48, stdev=129.50
    clat (usec): min=14, max=326728, avg=13847.28, stdev=18151.29
     lat (usec): min=29, max=326775, avg=13863.09, stdev=18154.74
    clat percentiles (usec):
     |  1.00th=[  852],  5.00th=[  964], 10.00th=[  996], 20.00th=[ 1288],
     | 30.00th=[ 1304], 40.00th=[ 1480], 50.00th=[ 5216], 60.00th=[11968],
     | 70.00th=[18304], 80.00th=[26496], 90.00th=[38144], 95.00th=[47360],
     | 99.00th=[71168], 99.50th=[82432], 99.90th=[152576], 99.95th=[187392],
     | 99.99th=[309248]
    bw (KB  /s): min= 3292, max=161752, per=94.70%, avg=17482.77, stdev=25286.21
    lat (usec) : 20=0.01%, 50=0.01%, 100=0.01%, 250=0.01%, 500=0.01%
    lat (usec) : 750=0.03%, 1000=10.12%
    lat (msec) : 2=34.59%, 4=3.85%, 10=7.94%, 20=15.67%, 50=23.55%
    lat (msec) : 100=4.01%, 250=0.20%, 500=0.02%
  cpu          : usr=3.03%, sys=7.86%, ctx=6130, majf=0, minf=74
  IO depths    : 1=0.1%, 2=0.1%, 4=0.1%, 8=0.1%, 16=0.1%, 32=0.1%, >=64=100.0%
     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=0.1%, >=64=0.0%
     issued    : total=r=262144/w=0/d=0, short=r=0/w=0/d=0, drop=r=0/w=0/d=0
     latency   : target=0, window=0, percentile=100.00%, depth=64

Run status group 0 (all jobs):
   READ: io=1024.0MB, aggrb=18462KB/s, minb=18462KB/s, maxb=18462KB/s, mint=56794msec, maxt=56794msec

Disk stats (read/write):
  loop0: ios=0/0, merge=0/0, ticks=0/0, in_queue=0, util=0.00%