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] [  8013/ 13658 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [17.4% done] [ 16213/  5491 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [21.7% done] [ 18566/  2434 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [25.0% done] [ 10652/  7968 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [29.2% done] [ 13231/  6585 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [33.3% done] [  8029/  9233 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [36.0% done] [  4885/ 11921 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [40.0% done] [  5572/  9147 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [44.0% done] [ 10063/  5299 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [46.2% done] [  7943/  6227 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [48.1% done] [  7452/  5485 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [51.9% done] [  2948/  8948 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [53.6% done] [  7191/  5100 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [55.2% done] [  7146/  3461 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [58.6% done] [  3123/  5914 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [60.0% done] [  5084/  4848 kb/s] [eta 00m:12s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
Threads: 3: [mmm] [61.3% done] [  4730/  3176 kb/s] [eta 00m:12s]
fio: pid=11111, got signal=6
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=11112, got signal=6
Threads: 1: [__m] [62.5% done] [  3119/  3095 kb/s] [eta 00m:12s]
Threads: 1: [__m] [65.6% done] [  1114/  5531 kb/s] [eta 00m:11s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=11113, got signal=6

fio: (groupid=0): err= 0: pid=11111
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=0.3%, 4=5.6%, 8=94.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.2%, 4=0.0%, 10=0.3%, 20=0.9%, 50=9.5%, 100=55.3%
     lat (msec): 250=33.6%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=11112
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=3.4%, 8=96.4%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.0%, 20=0.2%, 50=10.6%, 100=51.1%
     lat (msec): 250=37.1%, 500=0.3%, 750=0.2%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=11113
  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=0.0%, 10=0.1%, 20=1.4%, 50=19.8%, 100=23.0%
     lat (msec): 250=54.1%, 500=0.9%, 750=0.2%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):

Disk stats (read/write):
  cciss!c0d0: ios=3031/3046, merge=562/145, ticks=37072/40160, in_queue=77224, util=98.16%
0.16user 0.66system 0:21.98elapsed 3%CPU (0avgtext+0avgdata 0maxresident)k
328992inputs+285360outputs (0major+2473minor)pagefaults 0swaps