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] [  7406/ 14500 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [17.4% done] [ 14537/  7264 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [21.7% done] [ 13398/  6646 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [26.1% done] [  8378/ 10402 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [30.4% done] [ 13394/  5470 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [33.3% done] [ 12885/  4527 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [37.5% done] [ 16229/  1206 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [40.0% done] [ 11372/  4616 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [44.0% done] [ 10445/  5365 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [48.0% done] [  4937/  9293 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [50.0% done] [  5401/  8830 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [53.8% done] [  8598/  3376 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [55.6% done] [ 12104/     0 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [59.3% done] [  7590/  3770 kb/s] [eta 00m:11s]
Threads: 3: [mmm] [60.7% done] [  6837/  2733 kb/s] [eta 00m:11s]
Threads: 3: [mmm] [62.1% done] [  6491/  2440 kb/s] [eta 00m:11s]
Threads: 3: [mmm] [63.3% done] [  7252/  1382 kb/s] [eta 00m:11s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=12201, got signal=6
Threads: 2: [m_m] [64.5% done] [  6268/  1431 kb/s] [eta 00m:11s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=12202, got signal=6
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=12200, got signal=6

fio: (groupid=0): err= 0: pid=12200
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=5.5%, 8=94.2%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.1%, 20=1.7%, 50=7.1%, 100=46.9%
     lat (msec): 250=42.5%, 500=1.1%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=12201
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=5.2%, 8=94.6%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.0%, 20=1.4%, 50=7.3%, 100=52.9%
     lat (msec): 250=37.8%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=12202
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=4.5%, 8=95.3%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.1%, 20=1.4%, 50=9.0%, 100=46.8%
     lat (msec): 250=41.7%, 500=0.5%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):

Disk stats (read/write):
  cciss!c0d0: ios=3715/2076, merge=534/149, ticks=44376/29740, in_queue=74108, util=98.37%
0.20user 0.50system 0:21.46elapsed 3%CPU (0avgtext+0avgdata 0maxresident)k
395120inputs+219144outputs (0major+2454minor)pagefaults 0swaps