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] [  6198/ 12458 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [13.3% done] [  9943/  6838 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [16.7% done] [ 10181/  7244 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [19.4% done] [ 12739/  3441 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [22.6% done] [ 12523/  3689 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [25.8% done] [ 14923/     0 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [28.1% done] [  9768/  3982 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [31.2% done] [  8826/  5316 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [33.3% done] [ 12178/  2685 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [37.5% done] [ 14159/  2623 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [40.6% done] [ 10742/  4697 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [43.8% done] [  5965/  7411 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [46.9% done] [  9518/  3762 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [48.5% done] [  7968/  4096 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [51.5% done] [  5015/  6243 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [54.5% done] [  7911/  2151 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [55.9% done] [  4981/  4819 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [57.1% done] [  4372/  2932 kb/s] [eta 00m:15s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=28190, got signal=6
Threads: 2: [m_m] [60.0% done] [  7077/  2013 kb/s] [eta 00m:14s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=28191, got signal=6
Threads: 1: [m__] [62.9% done] [  8741/     0 kb/s] [eta 00m:13s]
Threads: 1: [m__] [67.6% done] [  3550/  3294 kb/s] [eta 00m:11s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=28189, got signal=6

fio: (groupid=0): err= 0: pid=28189
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=8.5%, 8=91.3%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.1%, 20=2.7%, 50=24.3%, 100=28.7%
     lat (msec): 250=27.9%, 500=15.6%, 750=0.3%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=28190
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=8.0%, 8=91.8%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.0%, 20=0.4%, 50=25.1%, 100=53.8%
     lat (msec): 250=6.9%, 500=13.3%, 750=0.1%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=28191
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=0.2%, 4=8.2%, 8=91.4%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.1%, 10=0.1%, 20=1.4%, 50=26.2%, 100=42.9%
     lat (msec): 250=15.3%, 500=13.6%, 750=0.2%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):

Disk stats (read/write):
  cciss!c0d0: ios=3670/1878, merge=552/228, ticks=50468/32248, in_queue=82712, util=99.04%
0.60user 0.37system 0:23.59elapsed 4%CPU (0avgtext+0avgdata 0maxresident)k
414872inputs+199064outputs (0major+2463minor)pagefaults 0swaps