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] [13.0% done] [ 18592/  3107 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [18.2% done] [ 15120/  6192 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [21.7% done] [ 16603/  3184 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [26.1% done] [ 13577/  5865 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [30.4% done] [ 14299/  5010 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [34.8% done] [  9290/  8997 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [39.1% done] [  9996/  8821 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [41.7% done] [ 12934/  2468 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [45.8% done] [ 11093/  5766 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [48.0% done] [  7663/  6776 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [50.0% done] [ 10475/  2933 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [53.8% done] [  4490/  7813 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [55.6% done] [  6626/  4096 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [59.3% done] [  9509/  1480 kb/s] [eta 00m:11s]
Threads: 3: [mmm] [60.7% done] [  7886/  1301 kb/s] [eta 00m:11s]
Threads: 3: [mmm] [62.1% done] [  7358/  1500 kb/s] [eta 00m:11s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=5920, got signal=6
Threads: 2: [m_m] [63.3% done] [  7923/   931 kb/s] [eta 00m:11s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=5921, got signal=6
Threads: 1: [m__] [66.7% done] [  6516/  1155 kb/s] [eta 00m:10s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=5919, got signal=6

fio: (groupid=0): err= 0: pid=5919
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=6.0%, 8=93.8%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.0%, 20=2.5%, 50=8.8%, 100=42.0%
     lat (msec): 250=45.1%, 500=0.8%, 750=0.3%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=5920
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=6.8%, 8=93.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.2%, 20=3.0%, 50=9.5%, 100=48.8%
     lat (msec): 250=38.0%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=5921
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=5.4%, 8=94.4%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.0%, 20=1.2%, 50=10.5%, 100=44.9%
     lat (msec): 250=42.3%, 500=0.2%, 750=0.3%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):

Disk stats (read/write):
  cciss!c0d0: ios=3913/1616, merge=854/110, ticks=47340/22044, in_queue=69380, util=99.09%
0.20user 0.53system 0:20.84elapsed 3%CPU (0avgtext+0avgdata 0maxresident)k
446896inputs+167384outputs (0major+2446minor)pagefaults 0swaps