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] [13.0% done] [ 10482/  8940 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [16.7% done] [ 12060/  7341 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [21.7% done] [ 17290/  2986 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [26.1% done] [  7138/ 10522 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [29.2% done] [  6237/ 12925 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [33.3% done] [ 13756/  3945 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [37.5% done] [ 13430/  3636 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [41.7% done] [ 14002/  2783 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [44.0% done] [  5743/  8261 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [46.2% done] [  8554/  5173 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [50.0% done] [  5384/  6924 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [51.9% done] [  8653/  3840 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [55.6% done] [  5485/  5806 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [57.1% done] [  6700/  4555 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [58.6% done] [  4112/  4897 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [62.1% done] [  8931/  1158 kb/s] [eta 00m:11s]
Threads: 3: [mmm] [63.3% done] [  3437/  4836 kb/s] [eta 00m:11s]
Threads: 3: [mmm] [64.5% done] [  4876/  3432 kb/s] [eta 00m:11s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=3023, got signal=6
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=3022, got signal=6
Threads: 1: [m__] [65.6% done] [  5832/  1004 kb/s] [eta 00m:11s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=3021, got signal=6

fio: (groupid=0): err= 0: pid=3021
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=6.0%, 8=93.8%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.3%, 20=1.7%, 50=10.3%, 100=39.9%
     lat (msec): 250=46.2%, 500=0.8%, 750=0.3%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=3022
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=4.7%, 8=95.1%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.1%, 20=0.8%, 50=7.5%, 100=48.6%
     lat (msec): 250=42.2%, 500=0.4%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=3023
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=5.4%, 8=94.3%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.0%, 20=1.4%, 50=8.3%, 100=42.1%
     lat (msec): 250=47.6%, 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=3653/2634, merge=589/256, ticks=43936/42072, in_queue=86000, util=98.38%
0.21user 0.55system 0:22.33elapsed 3%CPU (0avgtext+0avgdata 0maxresident)k
370432inputs+243448outputs (0major+2460minor)pagefaults 0swaps