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] [ 13129/  8545 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [18.2% done] [ 14297/  7158 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [22.7% done] [ 10197/  9204 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [26.1% done] [ 16839/  3371 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [30.4% done] [ 16225/  3774 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [34.8% done] [ 12214/  5194 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [37.5% done] [ 16229/  2490 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [40.0% done] [  6967/  6792 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [42.3% done] [ 14340/   967 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [46.2% done] [ 10860/  4380 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [48.1% done] [  7610/  4921 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [51.9% done] [  8008/  4641 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [53.6% done] [  4527/  6609 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [55.2% done] [  6343/  3779 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [58.6% done] [  8423/  1850 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [60.0% done] [  5487/  3168 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [59.4% done] [  3811/  2664 kb/s] [eta 00m:13s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=5205, got signal=6
fio: pid=5206, got signal=6
Threads: 1: [m__] [62.5% done] [  2438/  4380 kb/s] [eta 00m:12s]
Threads: 1: [m__] [67.7% done] [  3660/  3197 kb/s] [eta 00m:10s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
Threads: 1: [m__] [66.7% done] [     0/    36 kb/s] [eta 00m:11s]
fio: pid=5204, got signal=6

fio: (groupid=0): err= 0: pid=5204
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=5.0%, 8=94.8%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.0%, 20=0.8%, 50=22.4%, 100=21.1%
     lat (msec): 250=54.1%, 500=0.4%, 750=0.5%, 1000=0.1%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=5205
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=0.4%, 4=6.2%, 8=93.2%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.1%, 4=0.1%, 10=1.0%, 20=1.6%, 50=7.1%, 100=51.5%
     lat (msec): 250=37.7%, 500=0.4%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=5206
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=5.2%, 8=94.5%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.0%, 20=0.4%, 50=8.6%, 100=54.3%
     lat (msec): 250=36.1%, 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=3729/2359, merge=568/220, ticks=45920/32468, in_queue=78380, util=90.59%
0.20user 0.73system 0:23.72elapsed 3%CPU (0avgtext+0avgdata 0maxresident)k
405216inputs+209104outputs (0major+2466minor)pagefaults 0swaps