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] [14.3% done] [ 18328/  4462 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [18.2% done] [  5745/ 14892 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [22.7% done] [  7463/ 13170 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [27.3% done] [ 11161/  8102 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [30.4% done] [  5745/ 11918 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [34.8% done] [ 10107/  8118 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [37.5% done] [ 14919/  1887 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [41.7% done] [ 13988/  1736 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [45.8% done] [  9874/  5335 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [48.0% done] [ 14382/   703 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [52.0% done] [  9660/  4002 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [53.8% done] [ 11555/  1187 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [57.7% done] [  7724/  3233 kb/s] [eta 00m:11s]
Threads: 3: [mmm] [59.3% done] [  6093/  2993 kb/s] [eta 00m:11s]
Threads: 3: [mmm] [60.7% done] [  6772/  3022 kb/s] [eta 00m:11s]
Threads: 3: [mmm] [62.1% done] [  7956/  1289 kb/s] [eta 00m:11s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=32485, got signal=6
Threads: 2: [mm_] [65.5% done] [  5661/  2851 kb/s] [eta 00m:10s]
Threads: 2: [mm_] [66.7% done] [  3453/  3880 kb/s] [eta 00m:10s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=32484, got signal=6
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=32483, got signal=6

fio: (groupid=0): err= 0: pid=32483
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=3.7%, 8=96.1%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.0%, 20=0.2%, 50=5.4%, 100=49.2%
     lat (msec): 250=44.2%, 500=0.5%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=32484
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=0.2%, 4=6.3%, 8=93.3%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.1%, 4=0.0%, 10=0.3%, 20=1.5%, 50=7.6%, 100=46.1%
     lat (msec): 250=43.7%, 500=0.5%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=32485
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=0.2%, 4=5.7%, 8=93.8%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.1%, 4=0.1%, 10=0.1%, 20=1.6%, 50=8.2%, 100=49.9%
     lat (msec): 250=39.8%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):

Disk stats (read/write):
  cciss!c0d0: ios=3656/1957, merge=642/175, ticks=42512/28280, in_queue=70788, util=98.93%
0.24user 0.30system 0:20.68elapsed 2%CPU (0avgtext+0avgdata 0maxresident)k
392584inputs+221480outputs (0major+2455minor)pagefaults 0swaps