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] [ 19906/  2928 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [18.2% done] [ 17274/  4315 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [22.7% done] [  8358/ 11600 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [27.3% done] [  6322/ 12633 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [30.4% done] [ 11380/  6626 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [34.8% done] [ 11120/  6068 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [39.1% done] [  8078/  8265 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [41.7% done] [  5702/  9965 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [45.8% done] [  9139/  5775 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [48.0% done] [ 12917/  2064 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [52.0% done] [  4067/  9033 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [53.8% done] [  4681/  6959 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [55.6% done] [  6215/  5116 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [59.3% done] [  6528/  3473 kb/s] [eta 00m:11s]
Threads: 3: [mmm] [60.7% done] [  9614/   694 kb/s] [eta 00m:11s]
Threads: 3: [mmm] [62.1% done] [  4559/  4246 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] [  4307/  2269 kb/s] [eta 00m:11s]
fio: pid=29319, got signal=6
Threads: 2: [m_m] [64.5% done] [  7732/    73 kb/s] [eta 00m:11s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=29320, got signal=6
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=29318, got signal=6

fio: (groupid=0): err= 0: pid=29318
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=3.6%, 8=96.2%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.0%, 20=0.3%, 50=9.0%, 100=46.3%
     lat (msec): 250=42.6%, 500=0.9%, 750=0.4%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=29319
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=5.2%, 8=94.6%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.2%, 20=1.3%, 50=8.1%, 100=56.1%
     lat (msec): 250=33.8%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=29320
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=0.2%, 4=5.8%, 8=93.8%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.2%, 20=3.2%, 50=8.8%, 100=47.8%
     lat (msec): 250=39.1%, 500=0.4%, 750=0.2%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):

Disk stats (read/write):
  cciss!c0d0: ios=3361/2509, merge=433/133, ticks=39456/36364, in_queue=75808, util=99.08%
0.22user 0.36system 0:21.28elapsed 2%CPU (0avgtext+0avgdata 0maxresident)k
370288inputs+244048outputs (0major+2460minor)pagefaults 0swaps