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] [ 15254/  6030 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [16.7% done] [ 11649/  8383 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [20.0% done] [  7895/  9611 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [24.0% done] [  7105/ 11043 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [28.0% done] [  9753/  7943 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [32.0% done] [  6788/  9733 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [36.0% done] [ 14016/  3498 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [38.5% done] [ 12357/  3986 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [42.3% done] [  7903/  6731 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [44.4% done] [  8143/  6284 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [48.1% done] [  5286/  7480 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [51.9% done] [ 11364/  2318 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [53.6% done] [  7696/  4014 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [57.1% done] [  5694/  4588 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [58.6% done] [  6692/  3518 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [60.0% done] [  8757/  1753 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [61.3% done] [  6800/  1814 kb/s] [eta 00m:12s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
Threads: 3: [mmm] [62.5% done] [  2677/  3799 kb/s] [eta 00m:12s]
fio: pid=22248, got signal=6
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=22249, got signal=6
Threads: 1: [m__] [65.6% done] [  6809/  1252 kb/s] [eta 00m:11s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=22247, got signal=6

fio: (groupid=0): err= 0: pid=22247
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=0.2%, 4=7.9%, 8=91.7%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.1%, 10=0.5%, 20=3.4%, 50=11.6%, 100=37.2%
     lat (msec): 250=45.8%, 500=0.8%, 750=0.4%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=22248
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=6.4%, 8=93.3%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.2%, 20=1.1%, 50=9.0%, 100=48.2%
     lat (msec): 250=41.0%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=22249
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=0.2%, 4=5.5%, 8=94.1%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.2%, 20=1.4%, 50=10.5%, 100=46.7%
     lat (msec): 250=40.5%, 500=0.4%, 750=0.3%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):

Disk stats (read/write):
  cciss!c0d0: ios=3881/2300, merge=534/323, ticks=46972/32164, in_queue=79136, util=98.77%
0.60user 0.40system 0:21.92elapsed 4%CPU (0avgtext+0avgdata 0maxresident)k
402984inputs+211352outputs (0major+2463minor)pagefaults 0swaps