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] [12.5% done] [ 16343/  4148 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [16.7% done] [ 14687/  4230 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [20.8% done] [ 11238/  8415 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [26.1% done] [  5796/ 13833 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [29.2% done] [ 11722/  5938 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [32.0% done] [  4205/ 13035 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [36.0% done] [  9945/  5731 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [40.0% done] [ 13520/  2444 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [42.3% done] [  3026/ 11234 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [46.2% done] [ 10524/  4417 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [48.1% done] [  6788/  6894 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [51.9% done] [  4201/  7899 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [53.6% done] [  6024/  6133 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [57.1% done] [  7061/  4323 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [58.6% done] [  6296/  3717 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [60.0% done] [  9949/     0 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [61.3% done] [  7590/   633 kb/s] [eta 00m:12s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=13039, got signal=6
Threads: 2: [m_m] [64.5% done] [  3347/  4409 kb/s] [eta 00m:11s]
Threads: 2: [m_m] [65.6% done] [  4266/  2932 kb/s] [eta 00m:11s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=13040, got signal=6
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=13038, got signal=6

fio: (groupid=0): err= 0: pid=13038
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=6.3%, 8=93.5%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.1%, 20=2.2%, 50=9.0%, 100=38.8%
     lat (msec): 250=48.2%, 500=1.2%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=13039
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.4%, 4=7.5%, 8=92.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.3%, 20=1.9%, 50=9.2%, 100=44.9%
     lat (msec): 250=43.1%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=13040
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=5.1%, 8=94.7%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.1%, 20=1.4%, 50=9.6%, 100=41.9%
     lat (msec): 250=46.2%, 500=0.6%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):

Disk stats (read/write):
  cciss!c0d0: ios=3391/2644, merge=604/51, ticks=40936/40192, in_queue=81128, util=99.01%
0.39user 0.31system 0:21.96elapsed 3%CPU (0avgtext+0avgdata 0maxresident)k
361208inputs+253064outputs (0major+2464minor)pagefaults 0swaps