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] [12.0% done] [ 17327/  2778 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [16.7% done] [ 13410/  6630 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [19.2% done] [ 14453/  5282 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [22.2% done] [  6129/ 10770 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [25.9% done] [  7280/  9566 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [28.6% done] [ 12104/  3054 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [32.1% done] [ 11905/  3351 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [35.7% done] [  6662/  8277 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [39.3% done] [  8627/  6650 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [42.9% done] [  8635/  5417 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [44.8% done] [ 10722/  3961 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [46.7% done] [  6129/  6101 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [50.0% done] [  7085/  3778 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [53.3% done] [ 10571/  1818 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [54.8% done] [  7455/  2277 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [58.1% done] [  7553/  1899 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [59.4% done] [  7166/  2192 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [60.6% done] [  7699/   601 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.
Threads: 3: [mmm] [61.8% done] [  4677/  1956 kb/s] [eta 00m:13s]
fio: pid=23648, got signal=6
fio: pid=23647, got signal=6
Threads: 1: [m__] [66.7% done] [  2895/  4004 kb/s] [eta 00m:11s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=23646, got signal=6

fio: (groupid=0): err= 0: pid=23646
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.2%, 4=6.4%, 8=93.3%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.1%, 20=1.9%, 50=21.1%, 100=25.0%
     lat (msec): 250=47.6%, 500=3.9%, 750=0.1%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=23647
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=4.0%, 8=95.7%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.0%, 20=0.5%, 50=6.1%, 100=46.2%
     lat (msec): 250=45.5%, 500=1.3%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=23648
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=0.2%, 4=7.2%, 8=92.4%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.2%, 10=0.4%, 20=1.8%, 50=9.6%, 100=44.9%
     lat (msec): 250=42.2%, 500=0.4%, 750=0.2%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):

Disk stats (read/write):
  cciss!c0d0: ios=3964/1941, merge=669/495, ticks=44440/36648, in_queue=81076, util=98.87%
0.21user 0.35system 0:23.19elapsed 2%CPU (0avgtext+0avgdata 0maxresident)k
404384inputs+209992outputs (0major+2459minor)pagefaults 0swaps