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] [14.3% done] [ 10457/ 12735 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [19.0% done] [ 13719/  6727 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [22.7% done] [ 11242/  9806 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [27.3% done] [ 14325/  4954 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [31.8% done] [ 14789/  5137 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [36.4% done] [  9265/  8236 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [39.1% done] [ 10856/  5958 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [43.5% done] [  9318/  5946 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [45.8% done] [ 11507/  3709 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [48.0% done] [ 10953/  3611 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [52.0% done] [  9465/  3213 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [53.8% done] [  8781/  3965 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [57.7% done] [  3941/  6788 kb/s] [eta 00m:11s]
Threads: 3: [mmm] [59.3% done] [  6817/  3636 kb/s] [eta 00m:11s]
Threads: 3: [mmm] [60.7% done] [  6642/  3319 kb/s] [eta 00m:11s]
Threads: 3: [mmm] [62.1% done] [  6951/  1940 kb/s] [eta 00m:11s]
Threads: 3: [mmm] [65.5% done] [  6402/  2314 kb/s] [eta 00m:10s]
Threads: 3: [mmm] [64.5% done] [  2424/  4262 kb/s] [eta 00m:11s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=16883, got signal=6
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=16881, got signal=6
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=16882, got signal=6

fio: (groupid=0): err= 0: pid=16881
  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=0.1%, 20=0.4%, 50=8.4%, 100=42.5%
     lat (msec): 250=47.4%, 500=0.7%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=16882
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=4.5%, 8=95.3%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.1%, 20=0.1%, 50=9.8%, 100=47.7%
     lat (msec): 250=40.8%, 500=0.4%, 750=0.2%, 1000=0.2%, >=2000=0.2%
fio: (groupid=0): err= 0: pid=16883
  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=0.4%, 20=0.9%, 50=6.6%, 100=44.3%
     lat (msec): 250=46.6%, 500=0.4%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):

Disk stats (read/write):
  cciss!c0d0: ios=3426/2505, merge=551/174, ticks=42256/37568, in_queue=79816, util=99.07%
0.40user 0.32system 0:21.39elapsed 3%CPU (0avgtext+0avgdata 0maxresident)k
372168inputs+241824outputs (0major+2460minor)pagefaults 0swaps