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] [ 14899/  6597 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [17.4% done] [ 10130/ 10296 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [20.8% done] [ 10681/  8993 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [25.0% done] [  9111/ 10571 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [28.0% done] [  4917/ 12263 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [30.8% done] [ 11299/  5361 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [34.6% done] [  4254/ 11828 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [38.5% done] [ 14811/  2259 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [42.3% done] [  9286/  6178 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [44.4% done] [  9890/  2182 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [46.4% done] [ 13089/  1704 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [48.3% done] [  5438/  5352 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [51.7% done] [  7337/  5104 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [55.2% done] [  4453/  6430 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [56.7% done] [  5007/  4018 kb/s] [eta 00m:13s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
Threads: 3: [mmm] [56.2% done] [  1984/  5438 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [61.3% done] [  3719/  4523 kb/s] [eta 00m:12s]
fio: pid=25029, got signal=6
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=25028, got signal=6
Threads: 1: [m__] [64.5% done] [  6521/  1297 kb/s] [eta 00m:11s]
Threads: 1: [m__] [67.7% done] [     0/  5755 kb/s] [eta 00m:10s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=25027, got signal=6

fio: (groupid=0): err= 0: pid=25027
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=3.6%, 8=96.1%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.0%, 20=0.0%, 50=19.3%, 100=25.7%
     lat (msec): 250=53.4%, 500=0.8%, 750=0.3%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=25028
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=4.9%, 8=94.8%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.1%, 20=1.9%, 50=10.0%, 100=39.9%
     lat (msec): 250=46.9%, 500=0.4%, 750=0.3%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=25029
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=7.0%, 8=92.8%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.0%, 20=0.4%, 50=13.7%, 100=52.6%
     lat (msec): 250=32.8%, 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=3211/2928, merge=619/210, ticks=39864/42564, in_queue=82428, util=98.98%
0.26user 0.64system 0:22.32elapsed 4%CPU (0avgtext+0avgdata 0maxresident)k
345016inputs+269160outputs (0major+2463minor)pagefaults 0swaps