128m: (g=0): rw=randread, bs=4K-4K/4K-4K, ioengine=sync, iodepth=1
...
128m: (g=0): rw=randread, bs=4K-4K/4K-4K, ioengine=sync, iodepth=1
fio 2.0.7
Starting 32 processes

128m: (groupid=0, jobs=32): err= 0: pid=2459
  read : io=6634.2MB, bw=679267KB/s, iops=169816 , runt= 10001msec
    clat (usec): min=0 , max=82201 , avg=186.47, stdev=455.54
     lat (usec): min=0 , max=82201 , avg=186.67, stdev=457.26
    clat percentiles (usec):
     |  1.00th=[    1],  5.00th=[    1], 10.00th=[    1], 20.00th=[    2],
     | 30.00th=[    2], 40.00th=[    2], 50.00th=[    2], 60.00th=[    2],
     | 70.00th=[    3], 80.00th=[  342], 90.00th=[  900], 95.00th=[ 1160],
     | 99.00th=[ 1400], 99.50th=[ 1464], 99.90th=[ 1672], 99.95th=[ 2024],
     | 99.99th=[10304]
    bw (KB/s)  : min= 3480, max=244336, per=3.13%, avg=21233.53, stdev=47830.72
    lat (usec) : 2=14.69%, 4=57.83%, 10=5.68%, 20=0.99%, 50=0.20%
    lat (usec) : 100=0.05%, 250=0.15%, 500=2.93%, 750=4.73%, 1000=4.71%
    lat (msec) : 2=7.99%, 4=0.03%, 10=0.01%, 20=0.01%, 50=0.01%
    lat (msec) : 100=0.01%
  cpu          : usr=0.98%, sys=3.28%, ctx=354587, majf=0, minf=1042
  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=1698338/w=0/d=0, short=r=0/w=0/d=0

Run status group 0 (all jobs):
   READ: io=6634.2MB, aggrb=679267KB/s, minb=679267KB/s, maxb=679267KB/s, mint=10001msec, maxt=10001msec

Disk stats (read/write):
  sdc: ios=346809/0, merge=0/0, ticks=297482/0, in_queue=297296, util=98.85%
128m: (g=0): rw=randread, bs=4K-4K/4K-4K, ioengine=sync, iodepth=1
...
128m: (g=0): rw=randread, bs=4K-4K/4K-4K, ioengine=sync, iodepth=1
fio 2.0.7
Starting 32 processes

128m: (groupid=0, jobs=32): err= 0: pid=2496
  read : io=6680.5MB, bw=684011KB/s, iops=171002 , runt= 10001msec
    clat (usec): min=0 , max=84329 , avg=184.90, stdev=441.56
     lat (usec): min=0 , max=84329 , avg=185.14, stdev=444.84
    clat percentiles (usec):
     |  1.00th=[    1],  5.00th=[    1], 10.00th=[    1], 20.00th=[    2],
     | 30.00th=[    2], 40.00th=[    2], 50.00th=[    2], 60.00th=[    2],
     | 70.00th=[    3], 80.00th=[  338], 90.00th=[  900], 95.00th=[ 1160],
     | 99.00th=[ 1400], 99.50th=[ 1464], 99.90th=[ 1592], 99.95th=[ 1656],
     | 99.99th=[ 5664]
    bw (KB/s)  : min= 4096, max=246264, per=3.13%, avg=21383.98, stdev=47756.97
    lat (usec) : 2=18.42%, 4=54.00%, 10=5.73%, 20=1.05%, 50=0.20%
    lat (usec) : 100=0.05%, 250=0.16%, 500=2.91%, 750=4.77%, 1000=4.70%
    lat (msec) : 2=7.99%, 4=0.01%, 10=0.01%, 20=0.01%, 50=0.01%
    lat (msec) : 100=0.01%
  cpu          : usr=0.99%, sys=3.23%, ctx=356788, majf=0, minf=1041
  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=1710198/w=0/d=0, short=r=0/w=0/d=0

Run status group 0 (all jobs):
   READ: io=6680.5MB, aggrb=684010KB/s, minb=684010KB/s, maxb=684010KB/s, mint=10001msec, maxt=10001msec

Disk stats (read/write):
  sdc: ios=349329/0, merge=0/0, ticks=296426/0, in_queue=296270, util=98.87%
