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] [  9599/ 10632 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [18.2% done] [ 16087/  3144 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [21.7% done] [ 15326/  3432 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [25.0% done] [ 12267/  6833 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [29.2% done] [ 14512/  4584 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [33.3% done] [ 12584/  5043 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [36.0% done] [ 14132/  4047 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [40.0% done] [ 14671/  2505 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [42.3% done] [  5857/  8196 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [46.2% done] [  7903/  6211 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [48.1% done] [  9753/  3473 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [51.9% done] [  9770/  3225 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [53.6% done] [  7899/  2660 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [57.1% done] [  5755/  4388 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [58.6% done] [  6792/  2371 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [60.0% done] [  6255/  2355 kb/s] [eta 00m:12s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
Threads: 3: [mVm] [61.3% done] [  3652/  3131 kb/s] [eta 00m:12s]
fio: pid=26285, got signal=6
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=26284, got signal=6
Threads: 1: [__m] [64.5% done] [  5028/  2495 kb/s] [eta 00m:11s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
Threads: 1: [__m] [67.7% done] [  4575/   471 kb/s] [eta 00m:10s]
fio: pid=26286, got signal=6

fio: (groupid=0): err= 0: pid=26284
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=0.2%, 4=4.9%, 8=94.7%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.1%, 4=0.5%, 10=0.2%, 20=0.5%, 50=9.2%, 100=52.4%
     lat (msec): 250=36.1%, 500=0.5%, 750=0.3%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=26285
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=0.3%, 4=6.9%, 8=92.5%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.1%, 4=0.1%, 10=0.2%, 20=1.5%, 50=10.3%, 100=53.9%
     lat (msec): 250=33.6%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=26286
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=8.2%, 8=91.6%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.1%, 10=0.4%, 20=4.3%, 50=14.1%, 100=32.9%
     lat (msec): 250=46.1%, 500=1.2%, 750=0.5%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):

Disk stats (read/write):
  cciss!c0d0: ios=4198/1885, merge=756/93, ticks=50176/25944, in_queue=76116, util=97.02%
0.21user 0.64system 0:22.02elapsed 3%CPU (0avgtext+0avgdata 0maxresident)k
436120inputs+178288outputs (0major+2457minor)pagefaults 0swaps