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] [13.6% done] [ 14494/  6952 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [18.2% done] [ 15765/  7594 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [21.7% done] [ 14457/  6034 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [25.0% done] [ 15574/  4218 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [29.2% done] [ 14610/  5897 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [32.0% done] [  9065/  7696 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [36.0% done] [  8748/  8240 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [38.5% done] [  8224/  7467 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [42.3% done] [  6278/  7940 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [44.4% done] [  7476/  6849 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [48.1% done] [ 10514/  3050 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [51.9% done] [  5950/  6154 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [53.6% done] [  4860/  5141 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [55.2% done] [  6093/  3945 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [58.6% done] [  8037/  2407 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [60.0% done] [  4242/  3908 kb/s] [eta 00m:12s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=14736, got signal=6
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=14737, got signal=6
Threads: 1: [m__] [61.3% done] [  5535/  1846 kb/s] [eta 00m:12s]
Threads: 1: [m__] [66.7% done] [  1903/  5308 kb/s] [eta 00m:10s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=14735, got signal=6

fio: (groupid=0): err= 0: pid=14735
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=0.5%, 4=6.7%, 8=92.5%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.1%, 4=0.1%, 10=0.2%, 20=2.3%, 50=22.1%, 100=25.2%
     lat (msec): 250=48.2%, 500=1.2%, 750=0.4%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=14736
  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=0.1%, 20=0.7%, 50=7.4%, 100=59.0%
     lat (msec): 250=32.2%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=14737
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=7.1%, 8=92.7%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.1%, 20=3.4%, 50=9.2%, 100=50.1%
     lat (msec): 250=36.2%, 500=0.5%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):

Disk stats (read/write):
  cciss!c0d0: ios=3337/2363, merge=682/155, ticks=38976/30992, in_queue=69960, util=99.05%
0.20user 0.30system 0:21.08elapsed 2%CPU (0avgtext+0avgdata 0maxresident)k
380360inputs+233872outputs (0major+2462minor)pagefaults 0swaps