fio: (g=0): rw=randrw, bs=4K-256K/4K-256K, ioengine=posixaio, iodepth=8
...
fio: (g=0): rw=randrw, bs=4K-256K/4K-256K, ioengine=posixaio, iodepth=8
Starting 3 threads
Threads: 3
Threads: 3
Threads: 3: [mmm] [42.9% done] [  8691/ 97584 kb/s] [eta 00m:04s]
Threads: 3: [mmF] [50.0% done] [ 10465/ 42704 kb/s] [eta 00m:04s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=28153, got signal=6
Threads: 2: [_mF] [62.5% done] [  1744/ 33467 kb/s] [eta 00m:03s]
Threads: 2: [_FF] [100.0% done] [     0/  9732 kb/s] [eta 00m:00s]
Threads: 2: [_FF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [_FF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [_FF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [_FF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [_FF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [_FF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [_FF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [_VV] [73.7% done] [ 18826/     0 kb/s] [eta 00m:05s]
Threads: 2: [_VV] [93.8% done] [ 60521/     0 kb/s] [eta 00m:01s]
Threads: 2: [_VV] [100.0% done] [ 65198/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=28153
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=83.0%, 4=3.6%, 8=13.2%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=67.6%, 4=14.7%, 10=1.8%, 20=0.2%, 50=3.4%, 100=7.7%
     lat (msec): 250=4.3%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=28154
  read : io=100MiB, bw=6,397KiB/s, runt= 16391msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  275, avg=27.32, stdev=47.25
    bw (KiB/s) : min=    2, max=34866, per=97.28%, avg=13112.15, stdev=12989.33
  write: io=79,204KiB, bw=5,908KiB/s, runt= 13727msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  131, avg= 1.98, stdev=11.28
    bw (KiB/s) : min=    0, max=62699, per=159.72%, avg=30273.50, stdev=29421.65
  cpu          : usr=10.40%, sys=4.71%, ctx=6610
  IO depths    : 1=0.9%, 2=57.6%, 4=26.5%, 8=14.9%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=44.5%, 4=18.2%, 10=19.4%, 20=4.5%, 50=1.3%, 100=4.6%
     lat (msec): 250=7.3%, 500=0.1%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=28155
  read : io=100MiB, bw=6,332KiB/s, runt= 16557msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  251, avg=20.66, stdev=40.13
    bw (KiB/s) : min=   10, max=45194, per=119.06%, avg=16048.33, stdev=15208.68
  write: io=85,664KiB, bw=6,390KiB/s, runt= 13727msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  131, avg= 1.54, stdev= 8.87
    bw (KiB/s) : min=    0, max=58580, per=127.38%, avg=24144.50, stdev=24841.16
  cpu          : usr=10.85%, sys=5.10%, ctx=6952
  IO depths    : 1=8.4%, 2=53.6%, 4=26.2%, 8=11.8%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=47.9%, 4=17.9%, 10=21.5%, 20=2.5%, 50=1.3%, 100=3.4%
     lat (msec): 250=5.1%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=213MiB, aggrb=13,479KiB/s, minb=0KiB/s, maxb=6,397KiB/s, mint=16391msec, maxt=16557msec
  WRITE: io=248MiB, aggrb=18,954KiB/s, minb=0KiB/s, maxb=6,390KiB/s, mint=16391msec, maxt=16557msec

Disk stats (read/write):
  cciss!c0d0: ios=4442/3449, merge=1056/60027, ticks=33848/1437292, in_queue=1471224, util=95.85%
5.09user 2.10system 0:16.85elapsed 42%CPU (0avgtext+0avgdata 0maxresident)k
539856inputs+508224outputs (0major+2454minor)pagefaults 0swaps