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] [ 18055/  4946 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [18.2% done] [  6627/ 11812 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [21.7% done] [ 17063/  3347 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [25.0% done] [  6148/ 12121 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [29.2% done] [ 11946/  7659 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [32.0% done] [ 13077/  5157 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [36.0% done] [  7814/  8281 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [38.5% done] [ 11519/  5304 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [42.3% done] [  8208/  5661 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [44.4% done] [  9363/  4201 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [48.1% done] [ 12955/  1098 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [51.9% done] [ 13113/   821 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [53.6% done] [  8338/  3034 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [57.1% done] [  7131/  3181 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [58.6% done] [  5637/  4551 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [60.0% done] [  6337/  1948 kb/s] [eta 00m:12s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=1909, got signal=6
Threads: 2: [mm_] [63.3% done] [  3262/  4722 kb/s] [eta 00m:11s]
Threads: 2: [mm_] [64.5% done] [  2420/  4641 kb/s] [eta 00m:11s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=1908, got signal=6
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=1907, got signal=6

fio: (groupid=0): err= 0: pid=1907
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.2%, 4=4.3%, 8=95.4%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.1%, 20=0.4%, 50=12.4%, 100=33.2%
     lat (msec): 250=52.6%, 500=0.9%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=1908
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=5.3%, 8=94.5%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.0%, 20=0.7%, 50=7.3%, 100=51.8%
     lat (msec): 250=39.2%, 500=0.5%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=1909
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=0.2%, 4=7.5%, 8=92.1%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.1%, 20=1.5%, 50=9.3%, 100=61.7%
     lat (msec): 250=27.2%, 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=3530/2339, merge=466/132, ticks=41192/32256, in_queue=73444, util=99.09%
0.18user 0.31system 0:21.39elapsed 2%CPU (0avgtext+0avgdata 0maxresident)k
384240inputs+229896outputs (0major+2461minor)pagefaults 0swaps