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] [9.7% done] [  7521/  9858 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [12.5% done] [  6495/ 11157 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [15.6% done] [ 11067/  5064 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [17.1% done] [ 11572/  4043 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [18.9% done] [ 11864/  2721 kb/s] [eta 00m:30s]
Threads: 3: [mmm] [22.2% done] [  7260/  7272 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [25.0% done] [  8720/  4693 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [27.8% done] [  7009/  6347 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [29.7% done] [ 10335/  2631 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [33.3% done] [  7944/  5566 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [36.1% done] [  9550/  5535 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [40.0% done] [  7671/  7028 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [42.9% done] [ 11645/  2387 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [45.7% done] [  8704/  3750 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [50.0% done] [  7748/  5727 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [52.9% done] [  1814/  9204 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [55.9% done] [  7093/  4014 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [57.1% done] [  7870/  1557 kb/s] [eta 00m:15s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=29723, got signal=6
Threads: 2: [m_m] [58.3% done] [  4584/  3563 kb/s] [eta 00m:15s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=29724, got signal=6
Threads: 1: [m__] [59.5% done] [  7964/   362 kb/s] [eta 00m:15s]
Threads: 1: [m__] [65.7% done] [  7565/   349 kb/s] [eta 00m:12s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=29722, got signal=6

fio: (groupid=0): err= 0: pid=29722
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=10.0%, 8=89.7%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.1%, 10=0.2%, 20=2.5%, 50=26.5%, 100=35.9%
     lat (msec): 250=17.1%, 500=16.8%, 750=0.4%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=29723
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=8.8%, 8=90.9%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.0%, 20=0.6%, 50=28.9%, 100=43.1%
     lat (msec): 250=12.0%, 500=14.8%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=29724
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=7.3%, 8=92.5%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.3%, 20=2.2%, 50=23.8%, 100=40.4%
     lat (msec): 250=16.4%, 500=16.2%, 750=0.3%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):

Disk stats (read/write):
  cciss!c0d0: ios=3502/2184, merge=587/310, ticks=47316/38108, in_queue=85420, util=99.05%
0.60user 0.36system 0:24.19elapsed 4%CPU (0avgtext+0avgdata 0maxresident)k
384000inputs+230216outputs (0major+2472minor)pagefaults 0swaps