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] [9.4% done] [  8683/  8126 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [12.5% done] [ 11608/  3758 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [15.6% done] [ 11462/  4401 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [18.2% done] [ 10841/  2860 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [21.2% done] [  9757/  4124 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [23.5% done] [  8017/  4729 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [26.5% done] [ 11637/  2074 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [28.6% done] [  9790/  2558 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [32.4% done] [  5710/  6768 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [35.3% done] [  8773/  4494 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [37.1% done] [  6971/  5255 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [40.0% done] [  9123/  2875 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [41.7% done] [  6512/  4462 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [44.4% done] [  7573/  2346 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [47.2% done] [  9920/   614 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [48.6% done] [  6695/  3050 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [51.4% done] [  2950/  6607 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [52.6% done] [  6089/  3164 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [55.3% done] [  8423/  1012 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [56.4% done] [  1834/  4820 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [59.0% done] [  3197/  4022 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [60.0% done] [  6286/  1714 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [61.0% done] [  4462/  2647 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [63.4% done] [  3485/  3754 kb/s] [eta 00m:15s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=29959, got signal=6
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=29960, got signal=6
Threads: 1: [m__] [65.9% done] [  3213/  3709 kb/s] [eta 00m:14s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=29958, got signal=6

fio: (groupid=0): err= 0: pid=29958
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=0.2%, 4=13.2%, 8=86.4%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.1%, 4=0.0%, 10=0.1%, 20=2.8%, 50=39.0%, 100=15.8%
     lat (msec): 250=11.0%, 500=30.4%, 750=0.4%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=29959
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.2%, 4=17.4%, 8=82.3%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.1%, 20=4.7%, 50=46.7%, 100=9.0%
     lat (msec): 250=14.5%, 500=24.5%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=29960
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=12.2%, 8=87.6%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.0%, 20=2.4%, 50=45.6%, 100=10.6%
     lat (msec): 250=13.4%, 500=27.4%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):

Disk stats (read/write):
  cciss!c0d0: ios=3815/2109, merge=586/256, ticks=60304/37624, in_queue=97932, util=99.36%
0.64user 0.35system 0:27.86elapsed 3%CPU (0avgtext+0avgdata 0maxresident)k
404344inputs+209888outputs (0major+2483minor)pagefaults 0swaps