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] [ 13284/  7081 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [18.2% done] [ 11698/  9272 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [21.7% done] [  6611/ 11971 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [26.1% done] [ 11828/  7862 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [29.2% done] [ 14146/  3392 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [33.3% done] [  6871/  9821 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [36.0% done] [ 10567/  6137 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [40.0% done] [  5241/  9870 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [42.3% done] [  6040/  9005 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [46.2% done] [  9554/  4860 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [48.1% done] [  6912/  6664 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [51.9% done] [ 11275/  2208 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [55.6% done] [  9391/  2383 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [57.1% done] [  7610/  3701 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [58.6% done] [  3961/  5861 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [62.1% done] [  3380/  5344 kb/s] [eta 00m:11s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=32723, got signal=6
Threads: 2: [mm_] [61.3% done] [  5507/  2322 kb/s] [eta 00m:12s]
Threads: 2: [mm_] [64.5% done] [  4409/  3701 kb/s] [eta 00m:11s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=32722, got signal=6
Threads: 1: [m__] [65.6% done] [  2729/  4396 kb/s] [eta 00m:11s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=32721, got signal=6

fio: (groupid=0): err= 0: pid=32721
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=5.8%, 8=94.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.1%, 10=0.7%, 20=2.6%, 50=9.7%, 100=33.3%
     lat (msec): 250=51.6%, 500=1.5%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=32722
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=4.7%, 8=95.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.0%, 20=0.2%, 50=12.8%, 100=36.4%
     lat (msec): 250=49.2%, 500=0.8%, 750=0.1%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=32723
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=0.3%, 4=6.5%, 8=93.1%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.1%, 4=0.0%, 10=0.4%, 20=2.5%, 50=10.2%, 100=40.7%
     lat (msec): 250=45.6%, 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=3365/2595, merge=535/258, ticks=40792/38492, in_queue=79284, util=99.20%
0.21user 0.39system 0:21.83elapsed 2%CPU (0avgtext+0avgdata 0maxresident)k
363416inputs+250896outputs (0major+2463minor)pagefaults 0swaps