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] [ 19365/  3986 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [16.7% done] [ 17836/  3310 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [21.7% done] [ 17856/  2334 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [25.0% done] [ 15542/  3892 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [28.0% done] [ 14114/  3835 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [32.0% done] [ 12670/  4897 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [34.6% done] [  4519/ 11913 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [37.0% done] [ 15452/     0 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [40.7% done] [ 11852/  3998 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [44.4% done] [  9400/  5218 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [46.4% done] [ 13727/   231 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [50.0% done] [ 10974/  2009 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [51.7% done] [  6361/  6032 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [55.2% done] [   374/  9395 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [56.7% done] [  4742/  4510 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [58.1% done] [  7809/  1773 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [59.4% done] [  6032/  2066 kb/s] [eta 00m:13s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=1063, got signal=6
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=1064, got signal=6
Threads: 1: [__m] [62.5% done] [  2257/  4567 kb/s] [eta 00m:12s]
Threads: 1: [__m] [65.6% done] [     0/  6316 kb/s] [eta 00m:11s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=1065, got signal=6

fio: (groupid=0): err= 0: pid=1063
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.2%, 4=5.6%, 8=94.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.1%, 20=1.8%, 50=7.6%, 100=53.4%
     lat (msec): 250=36.6%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=1064
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=0.2%, 4=5.5%, 8=94.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.2%, 20=1.9%, 50=7.1%, 100=55.6%
     lat (msec): 250=34.9%, 500=0.1%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=1065
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=3.3%, 8=96.5%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.0%, 20=0.1%, 50=23.3%, 100=25.1%
     lat (msec): 250=50.2%, 500=0.3%, 750=0.2%, 1000=0.2%, >=2000=0.0%

Run status group 0 (all jobs):

Disk stats (read/write):
  cciss!c0d0: ios=3781/2347, merge=530/168, ticks=46628/32424, in_queue=79048, util=98.35%
0.22user 0.50system 0:21.99elapsed 3%CPU (0avgtext+0avgdata 0maxresident)k
410968inputs+203360outputs (0major+2463minor)pagefaults 0swaps