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] [13.6% done] [ 18448/  2775 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [18.2% done] [ 12369/  8615 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [22.7% done] [ 17441/  1708 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [26.1% done] [ 20162/     0 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [30.4% done] [ 14852/  3303 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [33.3% done] [ 11319/  4441 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [37.5% done] [ 15655/  1224 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [41.7% done] [ 12824/  3027 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [44.0% done] [ 12661/  4217 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [48.0% done] [ 10018/  4685 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [50.0% done] [  9965/  2761 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [53.8% done] [  9204/  2261 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [55.6% done] [  7118/  4868 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [57.1% done] [  5103/  5615 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [60.7% done] [  2826/  7061 kb/s] [eta 00m:11s]
Threads: 3: [mmm] [62.1% done] [  6410/  1423 kb/s] [eta 00m:11s]
Threads: 3: [mmm] [63.3% done] [  4754/  4108 kb/s] [eta 00m:11s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=27039, got signal=6
Threads: 2: [m_m] [64.5% done] [  6907/  1357 kb/s] [eta 00m:11s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=27040, got signal=6
Threads: 1: [m__] [67.7% done] [  2017/  4596 kb/s] [eta 00m:10s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=27038, got signal=6

fio: (groupid=0): err= 0: pid=27038
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=4.0%, 8=95.8%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.0%, 20=0.4%, 50=8.4%, 100=38.5%
     lat (msec): 250=51.0%, 500=0.9%, 750=0.2%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=27039
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=5.3%, 8=94.4%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.0%, 20=2.4%, 50=6.7%, 100=46.5%
     lat (msec): 250=43.9%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=27040
  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=0.0%, 20=0.4%, 50=10.4%, 100=41.5%
     lat (msec): 250=46.7%, 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=4177/1748, merge=808/77, ticks=53820/22296, in_queue=76100, util=99.06%
0.20user 0.43system 0:21.69elapsed 2%CPU (0avgtext+0avgdata 0maxresident)k
465024inputs+149280outputs (0major+2450minor)pagefaults 0swaps