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] [  9285/ 12474 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [18.2% done] [ 15485/  5989 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [21.7% done] [ 10715/  8740 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [26.1% done] [ 11572/  8318 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [30.4% done] [ 13088/  5380 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [33.3% done] [  7882/  7919 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [37.5% done] [ 12072/  5818 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [41.7% done] [  9094/  6672 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [44.0% done] [ 11320/  3774 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [48.0% done] [ 10471/  3840 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [50.0% done] [  9749/  4002 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [53.8% done] [ 10292/  1873 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [55.6% done] [  9317/  2308 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [57.1% done] [  6834/  3714 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [60.7% done] [  6818/  3421 kb/s] [eta 00m:11s]
Threads: 3: [mmm] [62.1% done] [  6578/  2259 kb/s] [eta 00m:11s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=2907, got signal=6
Threads: 2: [mm_] [63.3% done] [  6570/  1982 kb/s] [eta 00m:11s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=2906, got signal=6
Threads: 1: [m__] [64.5% done] [  6156/   845 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] [  1515/  2970 kb/s] [eta 00m:10s]
fio: pid=2905, got signal=6

fio: (groupid=0): err= 0: pid=2905
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.2%, 4=6.1%, 8=93.6%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.1%, 20=1.2%, 50=15.4%, 100=39.3%
     lat (msec): 250=42.5%, 500=1.1%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=2906
  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=0.2%, 20=1.2%, 50=8.8%, 100=47.9%
     lat (msec): 250=40.6%, 500=0.7%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=2907
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=0.2%, 4=6.6%, 8=93.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.2%, 4=0.1%, 10=0.5%, 20=2.0%, 50=9.4%, 100=47.8%
     lat (msec): 250=39.6%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):

Disk stats (read/write):
  cciss!c0d0: ios=4006/2068, merge=637/130, ticks=46596/30288, in_queue=76884, util=96.82%
0.36user 0.25system 0:21.96elapsed 2%CPU (0avgtext+0avgdata 0maxresident)k
412960inputs+201104outputs (0major+2456minor)pagefaults 0swaps