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] [ 13502/ 10004 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [18.2% done] [  6729/ 12600 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [21.7% done] [  8415/ 10621 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [26.1% done] [ 16091/  2490 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [30.4% done] [ 15815/  3941 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [33.3% done] [ 18108/     0 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [37.5% done] [ 13637/  2811 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [41.7% done] [ 10707/  6050 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [44.0% done] [  9107/  3856 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [48.0% done] [ 14876/     0 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [50.0% done] [  8964/  4579 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [51.9% done] [  5859/  5103 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [55.6% done] [  7870/  4693 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [57.1% done] [  8972/  1674 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [60.7% done] [  8159/  2226 kb/s] [eta 00m:11s]
Threads: 3: [mmm] [62.1% done] [  7086/  1950 kb/s] [eta 00m:11s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=10206, got signal=6
Threads: 2: [m_m] [63.3% done] [  5558/  2742 kb/s] [eta 00m:11s]
Threads: 2: [m_m] [64.5% done] [  3441/  3990 kb/s] [eta 00m:11s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=10207, got signal=6
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=10205, got signal=6

fio: (groupid=0): err= 0: pid=10205
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.2%, 4=4.2%, 8=95.5%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.1%, 20=0.2%, 50=11.1%, 100=38.8%
     lat (msec): 250=48.9%, 500=0.8%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=10206
  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=0.1%, 20=1.5%, 50=8.6%, 100=50.0%
     lat (msec): 250=39.2%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=10207
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=6.0%, 8=93.8%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.0%, 20=1.3%, 50=9.4%, 100=42.8%
     lat (msec): 250=45.5%, 500=0.5%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):

Disk stats (read/write):
  cciss!c0d0: ios=4063/2018, merge=526/197, ticks=50460/32144, in_queue=82604, util=98.90%
0.40user 0.37system 0:21.36elapsed 3%CPU (0avgtext+0avgdata 0maxresident)k
429880inputs+184464outputs (0major+2452minor)pagefaults 0swaps