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] [13.0% done] [ 15037/  6085 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [17.4% done] [ 14464/  7252 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [21.7% done] [ 12519/  6865 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [25.0% done] [  5796/ 12389 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [29.2% done] [  8379/  7939 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [33.3% done] [ 10538/  8460 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [37.5% done] [ 15147/  4152 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [40.0% done] [ 11140/  5503 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [44.0% done] [  7370/  7362 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [48.0% done] [  7756/  6198 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [50.0% done] [  9924/  4055 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [51.9% done] [  9184/  4266 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [55.6% done] [  6975/  4791 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [57.1% done] [  9680/  1716 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [58.6% done] [  6353/  3286 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [62.1% done] [ 10620/     0 kb/s] [eta 00m:11s]
Threads: 3: [mmm] [63.3% done] [  3725/  3831 kb/s] [eta 00m:11s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=29996, got signal=6
Threads: 2: [m_m] [64.5% done] [  5893/  1578 kb/s] [eta 00m:11s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=29997, got signal=6
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
Threads: 1: [m__] [67.7% done] [  3188/  3156 kb/s] [eta 00m:10s]
fio: pid=29995, got signal=6

fio: (groupid=0): err= 0: pid=29995
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=0.2%, 4=5.3%, 8=94.3%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.1%, 4=0.1%, 10=0.1%, 20=0.8%, 50=12.1%, 100=40.0%
     lat (msec): 250=45.4%, 500=0.6%, 750=0.4%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=29996
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=5.9%, 8=93.8%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.1%, 20=1.0%, 50=7.5%, 100=50.5%
     lat (msec): 250=40.3%, 500=0.1%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=29997
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=5.2%, 8=94.5%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.0%, 20=1.3%, 50=6.8%, 100=43.3%
     lat (msec): 250=47.2%, 500=0.9%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):

Disk stats (read/write):
  cciss!c0d0: ios=3595/2400, merge=682/113, ticks=42196/37932, in_queue=80128, util=98.01%
0.22user 0.51system 0:21.60elapsed 3%CPU (0avgtext+0avgdata 0maxresident)k
369144inputs+244864outputs (0major+2459minor)pagefaults 0swaps