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] [15.0% done] [ 11673/  9936 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [19.0% done] [ 17321/  3966 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [23.8% done] [ 12323/  5337 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [27.3% done] [ 11575/  7550 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [31.8% done] [  5617/ 10935 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [34.8% done] [ 10322/  7392 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [39.1% done] [  8192/  9515 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [43.5% done] [  3773/ 10799 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [45.8% done] [  9058/  5880 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [50.0% done] [  7458/  6469 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [52.0% done] [  4978/  8030 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [53.8% done] [  6904/  4879 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [55.6% done] [  7384/  2382 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [59.3% done] [  7219/  3198 kb/s] [eta 00m:11s]
Threads: 3: [mmm] [60.7% done] [  6915/  2059 kb/s] [eta 00m:11s]
Threads: 3: [mmm] [62.1% done] [  8310/  1261 kb/s] [eta 00m:11s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
Threads: 3: [mmm] [63.3% done] [  4501/  2367 kb/s] [eta 00m:11s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=13773, got signal=6
fio: pid=13774, got signal=6
Threads: 1: [m__] [65.6% done] [  7920/   322 kb/s] [eta 00m:11s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=13772, got signal=6

fio: (groupid=0): err= 0: pid=13772
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.3%, 4=21.7%, 8=77.9%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.1%, 20=1.6%, 50=11.5%, 100=39.9%
     lat (msec): 250=45.5%, 500=0.8%, 750=0.2%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=13773
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=21.7%, 8=78.1%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.1%, 20=0.7%, 50=10.5%, 100=48.5%
     lat (msec): 250=39.8%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=13774
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.5%, 4=19.7%, 8=79.7%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.1%, 4=0.1%, 10=0.1%, 20=1.5%, 50=7.9%, 100=47.4%
     lat (msec): 250=41.7%, 500=0.8%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):

Disk stats (read/write):
  cciss!c0d0: ios=3683/2380, merge=459/91, ticks=42760/34276, in_queue=77036, util=98.23%
0.44user 0.38system 0:21.76elapsed 3%CPU (0avgtext+0avgdata 0maxresident)k
365040inputs+248968outputs (0major+2437minor)pagefaults 0swaps