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] [14.3% done] [  9667/ 11605 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [18.2% done] [ 17848/  2717 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [21.7% done] [  6391/ 13100 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [26.1% done] [  7115/ 10390 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [30.4% done] [ 14701/  3905 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [33.3% done] [ 13454/  3246 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [37.5% done] [ 15664/  2535 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [41.7% done] [ 13381/  2637 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [44.0% done] [ 11174/  5107 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [48.0% done] [  6967/  7293 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [50.0% done] [  8578/  6148 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [53.8% done] [  7208/  4664 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [55.6% done] [ 12674/   914 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [59.3% done] [  7590/  2385 kb/s] [eta 00m:11s]
Threads: 3: [mmm] [60.7% done] [  7253/  3088 kb/s] [eta 00m:11s]
Threads: 3: [mmm] [62.1% done] [  7923/  1708 kb/s] [eta 00m:11s]
Threads: 3: [mmm] [63.3% done] [  4965/  3608 kb/s] [eta 00m:11s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=11781, got signal=6
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
Threads: 2: [m_m] [66.7% done] [  3766/  3311 kb/s] [eta 00m:10s]
fio: pid=11780, got signal=6
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=11782, got signal=6

fio: (groupid=0): err= 0: pid=11780
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=5.9%, 8=93.9%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.2%, 20=1.9%, 50=9.1%, 100=47.1%
     lat (msec): 250=40.2%, 500=0.9%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=11781
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.2%, 4=6.6%, 8=93.1%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.1%, 10=0.2%, 20=0.6%, 50=9.2%, 100=50.0%
     lat (msec): 250=39.5%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=11782
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.2%, 4=5.6%, 8=94.1%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.1%, 10=0.0%, 20=0.0%, 50=10.6%, 100=40.9%
     lat (msec): 250=46.3%, 500=1.7%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):

Disk stats (read/write):
  cciss!c0d0: ios=3666/2331, merge=499/207, ticks=43876/33692, in_queue=77564, util=98.75%
0.38user 0.36system 0:21.07elapsed 3%CPU (0avgtext+0avgdata 0maxresident)k
390528inputs+223744outputs (0major+2448minor)pagefaults 0swaps