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] [11.5% done] [  8846/ 11731 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [16.0% done] [ 13402/  6853 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [19.2% done] [ 10689/  7712 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [24.0% done] [  9841/  9378 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [28.0% done] [ 11718/  7187 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [32.0% done] [ 17925/  1679 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [36.0% done] [ 15672/  2238 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [40.0% done] [ 13374/  2591 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [44.0% done] [ 10612/  4685 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [46.2% done] [ 12654/  2310 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [50.0% done] [  9969/  4014 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [51.9% done] [  7220/  5038 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [53.6% done] [  4413/  7293 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [57.1% done] [  5365/  5190 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [58.6% done] [  6719/  3514 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [62.1% done] [  1016/  7126 kb/s] [eta 00m:11s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
Threads: 3: [mmm] [61.3% done] [  1904/  5003 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [64.5% done] [  3017/  4228 kb/s] [eta 00m:11s]
fio: pid=3825, got signal=6
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=3827, got signal=6
Threads: 1: [_m_] [67.7% done] [  6241/   781 kb/s] [eta 00m:10s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=3826, got signal=6

fio: (groupid=0): err= 0: pid=3825
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=4.8%, 8=95.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.1%, 20=0.1%, 50=9.4%, 100=54.7%
     lat (msec): 250=35.3%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=3826
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=0.2%, 4=5.8%, 8=93.9%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.1%, 20=3.5%, 50=8.6%, 100=41.7%
     lat (msec): 250=44.5%, 500=0.7%, 750=0.6%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=3827
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.4%, 4=5.6%, 8=94.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.1%, 4=0.0%, 10=0.1%, 20=0.5%, 50=14.5%, 100=37.2%
     lat (msec): 250=46.8%, 500=0.4%, 750=0.3%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):

Disk stats (read/write):
  cciss!c0d0: ios=3503/2590, merge=560/69, ticks=42000/36236, in_queue=78232, util=97.48%
0.21user 0.86system 0:22.36elapsed 4%CPU (0avgtext+0avgdata 0maxresident)k
380592inputs+233848outputs (0major+2463minor)pagefaults 0swaps