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] [13.6% done] [ 17493/  3827 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [17.4% done] [ 11559/  5279 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [21.7% done] [ 16363/  3921 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [26.1% done] [ 17063/  3530 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [30.4% done] [  9269/  9619 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [34.8% done] [ 17543/   780 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [39.1% done] [ 18312/     0 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [41.7% done] [  8370/  7492 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [45.8% done] [  7321/  7667 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [48.0% done] [  6564/  6772 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [50.0% done] [ 10172/  4201 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [53.8% done] [ 11272/  2178 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [55.6% done] [  4832/  6166 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [59.3% done] [  6882/  4209 kb/s] [eta 00m:11s]
Threads: 3: [mmm] [60.7% done] [  3986/  4775 kb/s] [eta 00m:11s]
Threads: 3: [mmm] [62.1% done] [  7354/  2810 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] [  5453/  2202 kb/s] [eta 00m:11s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=9547, got signal=6
Threads: 2: [m_V] [64.5% done] [  7877/     0 kb/s] [eta 00m:11s]
fio: pid=9548, got signal=6
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=9546, got signal=6

fio: (groupid=0): err= 0: pid=9546
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=0.2%, 4=5.9%, 8=93.8%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.5%, 20=2.3%, 50=12.1%, 100=43.1%
     lat (msec): 250=40.7%, 500=0.7%, 750=0.2%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=9547
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=5.3%, 8=94.4%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.1%, 20=1.6%, 50=8.5%, 100=46.1%
     lat (msec): 250=43.2%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=9548
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=0.4%, 4=7.2%, 8=92.2%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.1%, 4=0.0%, 10=0.1%, 20=3.0%, 50=8.7%, 100=44.6%
     lat (msec): 250=42.7%, 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=4093/1940, merge=615/185, ticks=48608/29292, in_queue=77892, util=99.08%
0.20user 0.30system 0:21.19elapsed 2%CPU (0avgtext+0avgdata 0maxresident)k
430312inputs+184344outputs (0major+2454minor)pagefaults 0swaps