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] [12.5% done] [  9918/ 10719 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [16.7% done] [ 11657/  9977 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [20.8% done] [  9607/  7675 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [25.0% done] [ 15843/  2924 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [29.2% done] [ 13870/  3884 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [33.3% done] [ 14342/  4718 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [36.0% done] [ 12088/  5343 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [40.0% done] [ 13760/  3656 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [44.0% done] [ 16721/  1517 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [48.0% done] [ 11197/  2733 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [50.0% done] [ 12706/  1466 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [53.8% done] [ 12328/  2574 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [55.6% done] [  8204/  2749 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [59.3% done] [  6471/  4006 kb/s] [eta 00m:11s]
Threads: 3: [mmm] [60.7% done] [  7740/  2078 kb/s] [eta 00m:11s]
Threads: 3: [mmm] [62.1% done] [  5279/  4437 kb/s] [eta 00m:11s]
Threads: 3: [mmm] [63.3% done] [  4836/  3404 kb/s] [eta 00m:11s]
Threads: 3: [mmm] [64.5% done] [  7752/   435 kb/s] [eta 00m:11s]
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.
fio: pid=26322, got signal=6
fio: pid=26323, got signal=6
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
Threads: 1: [V__] [67.7% done] [  2668/  3172 kb/s] [eta 00m:10s]
fio: pid=26321, got signal=6

fio: (groupid=0): err= 0: pid=26321
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=0.3%, 4=6.0%, 8=93.4%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.2%, 4=0.1%, 10=0.1%, 20=1.3%, 50=11.5%, 100=46.4%
     lat (msec): 250=39.7%, 500=0.2%, 750=0.2%, 1000=0.2%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=26322
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=4.5%, 8=95.3%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.0%, 20=0.6%, 50=6.6%, 100=47.7%
     lat (msec): 250=44.6%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=26323
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=0.2%, 4=6.6%, 8=93.1%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.0%, 20=2.1%, 50=7.0%, 100=51.0%
     lat (msec): 250=39.5%, 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=4227/1900, merge=811/83, ticks=50128/40672, in_queue=90788, util=99.78%
0.21user 0.51system 0:21.56elapsed 3%CPU (0avgtext+0avgdata 0maxresident)k
436480inputs+178344outputs (0major+2456minor)pagefaults 0swaps