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] [ 14189/  7310 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [17.4% done] [ 16058/  5926 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [21.7% done] [ 16306/  4075 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [25.0% done] [ 11710/  6024 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [29.2% done] [  8504/  8257 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [33.3% done] [  6292/ 10974 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [36.0% done] [  3319/ 10807 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [40.0% done] [ 17108/  2204 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [44.0% done] [ 10372/  3672 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [46.2% done] [  4104/  9855 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [50.0% done] [ 10966/  3367 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [51.9% done] [  6687/  6137 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [55.6% done] [  7895/  3229 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [57.1% done] [  6882/  3258 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [58.6% done] [  6263/  4327 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [62.1% done] [  9493/  1834 kb/s] [eta 00m:11s]
Threads: 3: [mmm] [63.3% done] [  7907/  1317 kb/s] [eta 00m:11s]
Threads: 3: [mmm] [64.5% done] [  6288/  1289 kb/s] [eta 00m:11s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=15636, got signal=6
fio: pid=15637, got signal=6
Threads: 1: [m__] [67.7% done] [  6406/   996 kb/s] [eta 00m:10s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=15635, got signal=6

fio: (groupid=0): err= 0: pid=15635
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=5.5%, 8=94.3%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.1%, 20=2.0%, 50=12.0%, 100=39.5%
     lat (msec): 250=44.7%, 500=0.8%, 750=0.4%, 1000=0.1%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=15636
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=0.4%, 4=6.1%, 8=93.3%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.1%, 4=0.0%, 10=0.1%, 20=2.0%, 50=7.9%, 100=46.7%
     lat (msec): 250=42.9%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=15637
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.2%, 4=5.2%, 8=94.5%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.2%, 20=2.1%, 50=7.6%, 100=39.8%
     lat (msec): 250=49.6%, 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=3946/2197, merge=384/151, ticks=47584/33304, in_queue=80876, util=98.40%
0.21user 0.52system 0:21.72elapsed 3%CPU (0avgtext+0avgdata 0maxresident)k
401672inputs+212600outputs (0major+2457minor)pagefaults 0swaps