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] [10.3% done] [ 16335/  3697 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [15.4% done] [ 12027/  6865 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [19.2% done] [  6345/ 11031 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [23.1% done] [ 12019/  5779 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [26.9% done] [ 10856/  5507 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [30.8% done] [ 14927/  1724 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [33.3% done] [ 10158/  5997 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [37.0% done] [ 10970/  3750 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [40.7% done] [ 12987/  2477 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [44.4% done] [ 11991/  2706 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [48.1% done] [  8342/  4693 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [50.0% done] [  7358/  5084 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [53.6% done] [  6890/  4340 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [55.2% done] [  6857/  3965 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [56.7% done] [  8826/  2383 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [60.0% done] [  6499/  2460 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [61.3% done] [  7976/  1008 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [62.5% done] [  6117/  1395 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [63.6% done] [  7289/   675 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] [  5039/  2249 kb/s] [eta 00m:11s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=25137, got signal=6
fio: pid=25136, got signal=6
fio: pid=25138, got signal=6

fio: (groupid=0): err= 0: pid=25136
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=0.3%, 4=4.2%, 8=95.4%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.3%, 4=0.2%, 10=0.0%, 20=0.5%, 50=8.8%, 100=43.0%
     lat (msec): 250=45.9%, 500=0.9%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=25137
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.2%, 4=3.3%, 8=96.4%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.1%, 10=0.0%, 20=0.1%, 50=4.8%, 100=47.3%
     lat (msec): 250=45.9%, 500=1.4%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=25138
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.2%, 4=5.3%, 8=94.3%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.1%, 20=1.9%, 50=10.2%, 100=43.1%
     lat (msec): 250=43.0%, 500=1.5%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):

Disk stats (read/write):
  cciss!c0d0: ios=4269/1641, merge=449/307, ticks=48680/30340, in_queue=79020, util=97.07%
0.44user 0.35system 0:23.40elapsed 3%CPU (0avgtext+0avgdata 0maxresident)k
439096inputs+175256outputs (0major+2457minor)pagefaults 0swaps