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] [8.3% done] [ 11043/ 10518 kb/s] [eta 00m:33s]
Threads: 3: [mmm] [13.3% done] [ 15127/  7594 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [17.2% done] [ 12593/  7768 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [22.2% done] [ 15696/  5308 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [26.9% done] [ 12959/  4978 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [32.0% done] [ 12259/  7643 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [36.0% done] [ 15960/  1537 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [40.0% done] [ 15908/  3026 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [42.3% done] [ 12495/  3230 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [46.2% done] [ 13524/  1269 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [48.1% done] [ 10384/  3701 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [51.9% done] [  7610/  5194 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [53.6% done] [  7553/  5808 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [57.1% done] [  5918/  4287 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [58.6% done] [  2375/  7394 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [60.0% done] [  4555/  3937 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [61.3% done] [  6947/  1866 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] [62.5% done] [  4091/  2688 kb/s] [eta 00m:12s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=20050, got signal=6
fio: pid=20052, got signal=6
Threads: 1: [_m_] [65.6% done] [  7610/   196 kb/s] [eta 00m:11s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=20051, got signal=6

fio: (groupid=0): err= 0: pid=20050
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=5.6%, 8=94.1%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.0%, 20=0.7%, 50=10.1%, 100=56.4%
     lat (msec): 250=31.3%, 500=0.8%, 750=0.2%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=20051
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=0.3%, 4=8.3%, 8=91.3%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.1%, 4=0.0%, 10=0.6%, 20=4.2%, 50=13.9%, 100=29.5%
     lat (msec): 250=49.7%, 500=1.2%, 750=0.0%, 1000=0.2%, >=2000=0.3%
fio: (groupid=0): err= 0: pid=20052
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=5.5%, 8=94.3%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.0%, 20=1.0%, 50=8.6%, 100=49.8%
     lat (msec): 250=38.3%, 500=1.5%, 750=0.2%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):

Disk stats (read/write):
  cciss!c0d0: ios=3656/2785, merge=473/2218, ticks=43908/196968, in_queue=221020, util=99.66%
0.64user 0.44system 0:22.02elapsed 4%CPU (0avgtext+0avgdata 0maxresident)k
414816inputs+199448outputs (0major+2461minor)pagefaults 0swaps