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] [15.0% done] [ 20081/  3953 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [19.0% done] [  7476/ 12475 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [23.8% done] [ 10937/  8122 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [27.3% done] [ 14372/  5002 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [31.8% done] [ 16327/  2086 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [34.8% done] [  8716/  8745 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [39.1% done] [ 14348/  3608 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [41.7% done] [  9644/  5788 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [45.8% done] [  5729/  9849 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [48.0% done] [  9583/  4006 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [52.0% done] [  8248/  5225 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [53.8% done] [  9278/  2603 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [57.7% done] [  7406/  5214 kb/s] [eta 00m:11s]
Threads: 3: [mmm] [59.3% done] [  7110/  3571 kb/s] [eta 00m:11s]
Threads: 3: [mmm] [60.7% done] [  8021/  1182 kb/s] [eta 00m:11s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=10562, got signal=6
Threads: 2: [mm_] [62.1% done] [  8322/   793 kb/s] [eta 00m:11s]
Threads: 2: [mm_] [63.3% done] [  4994/  2631 kb/s] [eta 00m:11s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=10561, got signal=6
Threads: 1: [m__] [66.7% done] [  6979/   386 kb/s] [eta 00m:10s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=10560, got signal=6

fio: (groupid=0): err= 0: pid=10560
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.2%, 4=6.0%, 8=93.7%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.2%, 20=1.9%, 50=10.7%, 100=38.4%
     lat (msec): 250=47.6%, 500=0.9%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=10561
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.2%, 4=5.9%, 8=93.8%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.1%, 20=2.5%, 50=9.3%, 100=44.9%
     lat (msec): 250=42.1%, 500=0.5%, 750=0.1%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=10562
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=0.3%, 4=7.4%, 8=92.1%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.1%, 4=0.1%, 10=0.2%, 20=2.4%, 50=9.2%, 100=48.8%
     lat (msec): 250=38.6%, 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=4046/1779, merge=715/131, ticks=46400/26164, in_queue=72548, util=99.13%
0.26user 0.40system 0:20.85elapsed 3%CPU (0avgtext+0avgdata 0maxresident)k
432320inputs+181912outputs (0major+2454minor)pagefaults 0swaps