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] [14.3% done] [  9825/ 10544 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [19.0% done] [ 16249/  4157 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [22.7% done] [  8261/ 10528 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [27.3% done] [ 18450/  2334 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [30.4% done] [ 11022/  7927 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [34.8% done] [ 10439/  7419 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [39.1% done] [ 11140/  6800 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [41.7% done] [ 13577/  2591 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [45.8% done] [ 11296/  3388 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [48.0% done] [ 12389/  2530 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [52.0% done] [  9827/  4124 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [53.8% done] [ 10530/  2355 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [57.7% done] [ 10002/  1842 kb/s] [eta 00m:11s]
Threads: 3: [mmm] [59.3% done] [  4291/  5283 kb/s] [eta 00m:11s]
Threads: 3: [mmm] [60.7% done] [  7382/  2664 kb/s] [eta 00m:11s]
Threads: 3: [mmm] [62.1% done] [  3043/  5148 kb/s] [eta 00m:11s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
Threads: 3: [mmm] [63.3% done] [  7846/   772 kb/s] [eta 00m:11s]
fio: pid=31332, got signal=6
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=31331, got signal=6
Threads: 1: [m__] [64.5% done] [  2037/  4250 kb/s] [eta 00m:11s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=31330, got signal=6

fio: (groupid=0): err= 0: pid=31330
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=0.2%, 4=4.8%, 8=94.8%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.2%, 4=0.0%, 10=0.1%, 20=1.5%, 50=11.1%, 100=36.8%
     lat (msec): 250=48.7%, 500=1.0%, 750=0.2%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=31331
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=3.7%, 8=96.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.0%, 20=0.6%, 50=9.0%, 100=42.9%
     lat (msec): 250=46.5%, 500=0.2%, 750=0.3%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=31332
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=6.5%, 8=93.2%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.1%, 20=2.2%, 50=8.9%, 100=45.7%
     lat (msec): 250=42.7%, 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=3774/2124, merge=698/161, ticks=46720/30424, in_queue=77140, util=98.13%
0.18user 0.58system 0:21.29elapsed 3%CPU (0avgtext+0avgdata 0maxresident)k
404192inputs+210128outputs (0major+2454minor)pagefaults 0swaps