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] [ 20219/  2348 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [16.7% done] [  6349/ 13219 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [20.8% done] [ 10490/  8200 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [24.0% done] [ 15391/  2184 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [28.0% done] [ 14399/  4726 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [32.0% done] [ 15261/  3205 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [36.0% done] [ 18299/     0 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [38.5% done] [  8724/  6471 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [42.3% done] [  3067/ 10682 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [46.2% done] [  9229/  4209 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [48.1% done] [ 15163/     0 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [50.0% done] [  7309/  4990 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [53.6% done] [  8769/  3786 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [55.2% done] [  8639/  2851 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [58.6% done] [  7488/  2407 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [60.0% done] [  8175/  1235 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [61.3% done] [  3880/  4010 kb/s] [eta 00m:12s]
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.
Threads: 3: [mmm] [62.5% done] [  6516/  1224 kb/s] [eta 00m:12s]
fio: pid=6220, got signal=6
fio: pid=6219, got signal=6
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
Threads: 1: [__m] [67.7% done] [  8061/     0 kb/s] [eta 00m:10s]
fio: pid=6221, got signal=6

fio: (groupid=0): err= 0: pid=6219
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=7.6%, 8=92.2%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.3%, 20=1.2%, 50=9.2%, 100=53.7%
     lat (msec): 250=34.8%, 500=0.5%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=6220
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.2%, 4=5.7%, 8=94.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.1%, 20=0.7%, 50=9.6%, 100=55.7%
     lat (msec): 250=33.3%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=6221
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.3%, 4=6.7%, 8=92.9%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.1%, 20=3.0%, 50=16.9%, 100=20.2%
     lat (msec): 250=58.4%, 500=1.1%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):

Disk stats (read/write):
  cciss!c0d0: ios=4169/1954, merge=595/260, ticks=48364/30744, in_queue=79104, util=94.44%
0.17user 0.48system 0:22.71elapsed 2%CPU (0avgtext+0avgdata 0maxresident)k
420992inputs+193336outputs (0major+2453minor)pagefaults 0swaps