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] [15.0% done] [ 14264/  8460 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [19.0% done] [ 14561/  7667 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [22.7% done] [ 12999/  7573 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [27.3% done] [ 13321/  5560 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [30.4% done] [ 11258/  7520 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [34.8% done] [ 14382/  4197 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [39.1% done] [ 17742/     0 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [41.7% done] [  9016/  7017 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [45.8% done] [  7545/  6394 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [48.0% done] [  5149/  9127 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [52.0% done] [  8773/  4096 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [53.8% done] [  8122/  4055 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [57.7% done] [  9298/  1842 kb/s] [eta 00m:11s]
Threads: 3: [mmm] [59.3% done] [  7269/  3604 kb/s] [eta 00m:11s]
Threads: 3: [mmm] [60.7% done] [  5352/  3843 kb/s] [eta 00m:11s]
Threads: 3: [mmm] [62.1% done] [  6007/  1895 kb/s] [eta 00m:11s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=2541, got signal=6
Threads: 2: [m_m] [63.3% done] [  5727/  2306 kb/s] [eta 00m:11s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
Threads: 2: [m_m] [66.7% done] [  2216/  4417 kb/s] [eta 00m:10s]
fio: pid=2542, got signal=6
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=2540, got signal=6

fio: (groupid=0): err= 0: pid=2540
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=0.2%, 4=4.7%, 8=94.9%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.1%, 4=0.0%, 10=0.0%, 20=0.1%, 50=13.7%, 100=47.8%
     lat (msec): 250=37.1%, 500=0.6%, 750=0.4%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=2541
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=6.1%, 8=93.7%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.0%, 20=1.7%, 50=7.7%, 100=51.4%
     lat (msec): 250=38.7%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=2542
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=6.4%, 8=93.3%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.2%, 20=1.9%, 50=8.5%, 100=55.8%
     lat (msec): 250=32.5%, 500=0.4%, 750=0.1%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):

Disk stats (read/write):
  cciss!c0d0: ios=3583/2097, merge=670/96, ticks=40820/26736, in_queue=67552, util=97.56%
0.21user 0.53system 0:21.28elapsed 3%CPU (0avgtext+0avgdata 0maxresident)k
403344inputs+210896outputs (0major+2458minor)pagefaults 0swaps