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] [ 12934/  7362 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [16.7% done] [ 10425/  9762 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [20.8% done] [  8533/ 12141 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [25.0% done] [  8098/ 11079 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [28.0% done] [ 12328/  5723 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [30.8% done] [  9111/  7191 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [36.0% done] [  9875/  9103 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [38.5% done] [  6977/  8508 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [42.3% done] [  8480/  6316 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [46.2% done] [  3624/  9778 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [50.0% done] [ 13801/   565 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [53.8% done] [ 11454/  1871 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [55.6% done] [  7923/  3689 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [57.1% done] [  7541/  2082 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [60.7% done] [  8395/  2257 kb/s] [eta 00m:11s]
Threads: 3: [mmm] [60.0% done] [  7740/   756 kb/s] [eta 00m:12s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=12159, got signal=6
Threads: 2: [m_m] [63.3% done] [  7866/   907 kb/s] [eta 00m:11s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
Threads: 2: [m_m] [64.5% done] [  5843/  1970 kb/s] [eta 00m:11s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
Threads: 2: [m_m] [67.7% done] [     0/  3225 kb/s] [eta 00m:10s]
fio: pid=12160, got signal=6
fio: pid=12158, got signal=6

fio: (groupid=0): err= 0: pid=12158
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=4.9%, 8=94.8%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.0%, 20=0.2%, 50=13.7%, 100=40.8%
     lat (msec): 250=43.4%, 500=1.1%, 750=0.1%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=12159
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.2%, 4=7.5%, 8=92.2%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.1%, 10=0.5%, 20=1.6%, 50=10.8%, 100=41.9%
     lat (msec): 250=44.8%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=12160
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.2%, 4=4.8%, 8=94.9%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.1%, 20=1.4%, 50=9.9%, 100=42.2%
     lat (msec): 250=45.1%, 500=0.7%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):

Disk stats (read/write):
  cciss!c0d0: ios=3686/2315, merge=498/230, ticks=43804/32616, in_queue=76412, util=93.16%
0.28user 0.34system 0:22.50elapsed 2%CPU (0avgtext+0avgdata 0maxresident)k
382616inputs+231584outputs (0major+2458minor)pagefaults 0swaps