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] [12.5% done] [ 19943/  1753 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [17.4% done] [ 16030/  5051 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [21.7% done] [ 14071/  6696 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [26.1% done] [ 16648/  4059 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [29.2% done] [ 11633/  6097 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [33.3% done] [  7240/ 10270 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [37.5% done] [ 18364/     0 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [41.7% done] [ 11686/  4388 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [44.0% done] [ 12414/  3498 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [48.0% done] [ 10812/  3803 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [50.0% done] [ 12637/  1728 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [53.8% done] [  3656/  7577 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [55.6% done] [ 12576/     0 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [59.3% done] [  9428/  2111 kb/s] [eta 00m:11s]
Threads: 3: [mmm] [60.7% done] [  6979/  2147 kb/s] [eta 00m:11s]
Threads: 3: [mmm] [62.1% done] [  2509/  6422 kb/s] [eta 00m:11s]
Threads: 3: [mmm] [63.3% done] [  7813/   406 kb/s] [eta 00m:11s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=7724, got signal=6
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=7723, got signal=6
Threads: 1: [m__] [64.5% done] [  6940/   479 kb/s] [eta 00m:11s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=7722, got signal=6

fio: (groupid=0): err= 0: pid=7722
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=0.2%, 4=6.1%, 8=93.5%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.2%, 20=2.6%, 50=10.3%, 100=42.5%
     lat (msec): 250=42.9%, 500=1.0%, 750=0.1%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=7723
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=5.3%, 8=94.4%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.0%, 20=0.6%, 50=8.1%, 100=47.4%
     lat (msec): 250=42.6%, 500=0.7%, 750=0.1%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=7724
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=5.5%, 8=94.3%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.0%, 20=0.4%, 50=10.0%, 100=47.1%
     lat (msec): 250=41.9%, 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=4245/1735, merge=679/219, ticks=50640/29188, in_queue=79816, util=98.30%
0.21user 0.51system 0:20.98elapsed 3%CPU (0avgtext+0avgdata 0maxresident)k
446320inputs+167800outputs (0major+2450minor)pagefaults 0swaps