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] [8.6% done] [  7764/  8838 kb/s] [eta 00m:32s]
Threads: 3: [mmm] [12.5% done] [ 11624/  4026 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [15.2% done] [  4730/ 10632 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [18.2% done] [  7960/  7459 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [21.2% done] [  7309/  6804 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [23.5% done] [ 12353/  2261 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [26.5% done] [  5112/  8370 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [29.4% done] [  6983/  6658 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [32.4% done] [  4136/  8606 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [35.3% done] [  9050/  3136 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [38.2% done] [  5623/  7586 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [41.2% done] [  4238/  8777 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [44.1% done] [  9855/  1968 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [45.7% done] [  5214/  5804 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [48.6% done] [   345/  9581 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [50.0% done] [  7321/  2611 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [52.8% done] [  4482/  5417 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [55.6% done] [  3331/  6621 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [56.8% done] [  5035/  3677 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [59.5% done] [  9123/     0 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [60.5% done] [  4921/  2957 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [61.5% done] [  3510/  4311 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [64.1% done] [  6947/   540 kb/s] [eta 00m:14s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=28658, got signal=6
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=28659, got signal=6
Threads: 1: [m__] [66.7% done] [  6845/  1065 kb/s] [eta 00m:13s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=28657, got signal=6

fio: (groupid=0): err= 0: pid=28657
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=13.4%, 8=86.3%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.0%, 20=2.4%, 50=43.3%, 100=13.1%
     lat (msec): 250=12.6%, 500=28.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=28658
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=13.2%, 8=86.5%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.1%, 20=4.4%, 50=45.1%, 100=11.0%
     lat (msec): 250=11.7%, 500=27.0%, 750=0.2%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=28659
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=0.2%, 4=13.8%, 8=85.7%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.1%, 4=0.0%, 10=0.6%, 20=3.9%, 50=43.2%, 100=11.3%
     lat (msec): 250=14.2%, 500=26.3%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):

Disk stats (read/write):
  cciss!c0d0: ios=3307/2444, merge=464/510, ticks=53948/44732, in_queue=98676, util=98.52%
0.66user 0.54system 0:26.87elapsed 4%CPU (0avgtext+0avgdata 0maxresident)k
343216inputs+271104outputs (0major+2483minor)pagefaults 0swaps