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] [  7537/ 14598 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [16.7% done] [ 13097/  7801 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [21.7% done] [ 11719/  8675 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [26.1% done] [ 10164/  9013 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [30.4% done] [ 10937/  6853 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [33.3% done] [ 11958/  5087 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [36.0% done] [ 14573/  3079 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [41.7% done] [ 10551/  5958 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [44.0% done] [  2493/ 11637 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [46.2% done] [ 13813/  1269 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [50.0% done] [ 11669/  2224 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [51.9% done] [  8834/  2696 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [55.6% done] [  9969/  2672 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [57.1% done] [  6536/  2611 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [58.6% done] [  7187/  1801 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [60.0% done] [  6926/  2696 kb/s] [eta 00m:12s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=10633, got signal=6
Threads: 2: [m_m] [63.3% done] [  5369/  2033 kb/s] [eta 00m:11s]
Threads: 2: [m_m] [64.5% done] [  5946/  1818 kb/s] [eta 00m:11s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=10632, got signal=6
Threads: 1: [__m] [67.7% done] [  4181/  2359 kb/s] [eta 00m:10s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=10634, got signal=6

fio: (groupid=0): err= 0: pid=10632
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=0.3%, 4=5.3%, 8=94.2%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.2%, 4=0.1%, 10=0.2%, 20=1.5%, 50=8.0%, 100=48.1%
     lat (msec): 250=40.7%, 500=0.5%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=10633
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=6.4%, 8=93.3%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.0%, 20=1.6%, 50=11.1%, 100=49.5%
     lat (msec): 250=37.2%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=10634
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=0.2%, 4=5.6%, 8=94.1%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.2%, 20=2.4%, 50=9.2%, 100=37.6%
     lat (msec): 250=49.9%, 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=4021/2207, merge=548/212, ticks=45436/34340, in_queue=79776, util=99.14%
0.26user 0.35system 0:21.57elapsed 2%CPU (0avgtext+0avgdata 0maxresident)k
400792inputs+213608outputs (0major+2457minor)pagefaults 0swaps