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] [  4937/ 15395 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [16.7% done] [  8594/ 10673 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [20.0% done] [ 18128/  1151 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [23.1% done] [ 15623/  2892 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [26.9% done] [ 11161/  5893 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [30.8% done] [ 12084/  4462 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [34.6% done] [  8301/  6276 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [38.5% done] [  6158/  9025 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [40.7% done] [ 12532/  2253 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [42.9% done] [ 10168/  3205 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [46.4% done] [ 11917/  1452 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [50.0% done] [ 15550/     0 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [53.6% done] [ 13947/     0 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [55.2% done] [  8240/  2871 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [58.6% done] [  7866/  2798 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [60.0% done] [  5914/  2513 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [61.3% done] [  7115/  2336 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [62.5% done] [  6089/  2489 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [63.6% done] [  5125/  2359 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] [66.7% done] [  2224/  3908 kb/s] [eta 00m:11s]
fio: pid=4564, got signal=6
fio: pid=4565, got signal=6
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=4563, got signal=6

fio: (groupid=0): err= 0: pid=4563
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=4.2%, 8=95.6%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.1%, 20=0.1%, 50=11.6%, 100=40.5%
     lat (msec): 250=45.1%, 500=2.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=4564
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=0.3%, 4=4.8%, 8=94.7%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.6%, 20=1.6%, 50=6.4%, 100=47.0%
     lat (msec): 250=43.8%, 500=0.3%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=4565
  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=1.2%, 50=5.5%, 100=44.6%
     lat (msec): 250=46.3%, 500=1.9%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):

Disk stats (read/write):
  cciss!c0d0: ios=3929/1861, merge=543/463, ticks=44580/31824, in_queue=76396, util=98.07%
0.25user 0.49system 0:22.95elapsed 3%CPU (0avgtext+0avgdata 0maxresident)k
404184inputs+209992outputs (0major+2461minor)pagefaults 0swaps