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] [12.5% done] [ 16680/  3697 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [16.7% done] [ 12837/  6479 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [20.0% done] [ 13483/  5796 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [24.0% done] [ 12275/  6190 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [28.0% done] [ 11250/  6499 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [32.0% done] [  5897/  9859 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [36.0% done] [ 10368/  7736 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [38.5% done] [ 14378/  1891 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [42.3% done] [ 13955/  2041 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [46.2% done] [ 12206/  2277 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [48.1% done] [ 13190/   744 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [51.9% done] [  9936/  2033 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [53.6% done] [  5991/  5617 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [57.1% done] [  5182/  5446 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [58.6% done] [  6611/  3474 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [60.0% done] [  6080/  3217 kb/s] [eta 00m:12s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
Threads: 3: [mmm] [61.3% done] [  7122/  1025 kb/s] [eta 00m:12s]
fio: pid=3435, got signal=6
Threads: 2: [mm_] [64.5% done] [  4759/  3485 kb/s] [eta 00m:11s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=3434, got signal=6
Threads: 1: [m__] [65.6% done] [  3115/  3453 kb/s] [eta 00m:11s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=3433, got signal=6

fio: (groupid=0): err= 0: pid=3433
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=4.6%, 8=95.2%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.0%, 20=1.0%, 50=11.1%, 100=35.8%
     lat (msec): 250=50.4%, 500=1.0%, 750=0.2%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=3434
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=6.1%, 8=93.6%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.1%, 20=1.4%, 50=9.4%, 100=49.1%
     lat (msec): 250=38.8%, 500=0.6%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=3435
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.2%, 4=6.5%, 8=93.2%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.1%, 4=0.0%, 10=0.1%, 20=1.6%, 50=9.6%, 100=51.4%
     lat (msec): 250=36.7%, 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=4041/1993, merge=664/129, ticks=48008/29692, in_queue=77700, util=99.17%
0.21user 0.32system 0:21.73elapsed 2%CPU (0avgtext+0avgdata 0maxresident)k
429816inputs+184320outputs (0major+2457minor)pagefaults 0swaps