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] [  9150/ 14116 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [19.0% done] [  9593/  9768 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [23.8% done] [ 15956/  5788 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [28.6% done] [ 17233/  2454 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [31.8% done] [ 16375/  3124 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [36.4% done] [  9813/  7102 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [39.1% done] [ 12288/  5278 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [43.5% done] [ 10211/  4880 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [45.8% done] [  6298/  9272 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [48.0% done] [  7614/  5892 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [50.0% done] [  4973/  6830 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [53.8% done] [  5339/  5530 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [55.6% done] [  8647/  2369 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [57.1% done] [  6440/  3246 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [60.7% done] [  5709/  4689 kb/s] [eta 00m:11s]
Threads: 3: [mmm] [62.1% done] [  3283/  4412 kb/s] [eta 00m:11s]
Threads: 3: [mmm] [61.3% done] [  3742/  3368 kb/s] [eta 00m:12s]
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] [64.5% done] [  5034/  2202 kb/s] [eta 00m:11s]
fio: pid=5403, got signal=6
fio: pid=5404, got signal=6
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=5402, got signal=6

fio: (groupid=0): err= 0: pid=5402
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=8.2%, 8=91.6%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.1%, 20=3.3%, 50=15.8%, 100=39.9%
     lat (msec): 250=39.5%, 500=0.3%, 750=0.2%, 1000=0.2%, >=2000=0.1%
fio: (groupid=0): err= 0: pid=5403
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=0.1%, 4=4.8%, 8=94.9%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.1%, 4=0.0%, 10=0.0%, 20=1.6%, 50=9.8%, 100=48.1%
     lat (msec): 250=39.7%, 500=0.2%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=5404
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=5.4%, 8=94.4%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.1%, 20=0.7%, 50=8.5%, 100=51.8%
     lat (msec): 250=37.9%, 500=0.5%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):

Disk stats (read/write):
  cciss!c0d0: ios=3379/2319, merge=624/74, ticks=39208/31624, in_queue=70832, util=98.22%
0.50user 0.37system 0:21.27elapsed 4%CPU (0avgtext+0avgdata 0maxresident)k
385856inputs+228208outputs (0major+2455minor)pagefaults 0swaps