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] [ 10148/ 10461 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [17.4% done] [  6032/ 13719 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [21.7% done] [  9740/  9748 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [26.1% done] [ 10709/  8314 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [30.4% done] [ 17327/  1183 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [33.3% done] [ 12405/  5347 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [37.5% done] [ 10506/  7276 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [41.7% done] [ 13483/  3668 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [45.8% done] [ 14016/   894 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [48.0% done] [  7907/  5849 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [50.0% done] [ 10709/  2151 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [53.8% done] [ 14333/     0 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [55.6% done] [ 11715/     0 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [59.3% done] [  7345/  3351 kb/s] [eta 00m:11s]
Threads: 3: [mmm] [60.7% done] [  4051/  4917 kb/s] [eta 00m:11s]
Threads: 3: [mmm] [62.1% done] [  4649/  4689 kb/s] [eta 00m:11s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=19912, got signal=6
Threads: 2: [mm_] [63.3% done] [  1434/  4953 kb/s] [eta 00m:11s]
Threads: 2: [mm_] [64.5% done] [  1739/  5632 kb/s] [eta 00m:11s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=19911, got signal=6
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
Threads: 1: [V__] [67.7% done] [  2501/  3188 kb/s] [eta 00m:10s]
fio: pid=19910, got signal=6

fio: (groupid=0): err= 0: pid=19910
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=0.3%, 4=5.0%, 8=94.5%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.1%, 4=0.1%, 10=0.2%, 20=1.3%, 50=10.6%, 100=43.0%
     lat (msec): 250=42.8%, 500=1.6%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=19911
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=5.3%, 8=94.5%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.1%, 20=0.9%, 50=10.1%, 100=49.0%
     lat (msec): 250=38.6%, 500=0.7%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=19912
  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=0.0%, 20=0.4%, 50=10.6%, 100=48.2%
     lat (msec): 250=40.3%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):

Disk stats (read/write):
  cciss!c0d0: ios=3730/2318, merge=637/169, ticks=46372/33052, in_queue=79408, util=98.88%
0.21user 0.54system 0:21.83elapsed 3%CPU (0avgtext+0avgdata 0maxresident)k
397432inputs+216744outputs (0major+2459minor)pagefaults 0swaps