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] [ 13628/  8415 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [17.4% done] [ 14908/  7119 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [21.7% done] [ 13303/  6680 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [26.1% done] [ 15624/  3141 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [29.2% done] [ 12755/  6050 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [33.3% done] [ 16912/  2149 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [37.5% done] [ 17379/  1771 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [40.0% done] [ 11198/  3689 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [44.0% done] [ 12263/  3665 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [46.2% done] [  7728/  5457 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [50.0% done] [  7269/  5940 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [51.9% done] [  9029/  2669 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [55.6% done] [ 11450/   930 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [57.1% done] [  9797/  1922 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [60.7% done] [  7501/  1747 kb/s] [eta 00m:11s]
Threads: 3: [mmm] [62.1% done] [  5059/  3453 kb/s] [eta 00m:11s]
Threads: 3: [mmm] [63.3% done] [  3799/  3600 kb/s] [eta 00m:11s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=7631, got signal=6
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
Threads: 2: [m_V] [62.5% done] [  6838/   203 kb/s] [eta 00m:12s]
fio: pid=7632, got signal=6
Threads: 1: [m__] [67.7% done] [  3124/  3470 kb/s] [eta 00m:10s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=7630, got signal=6

fio: (groupid=0): err= 0: pid=7630
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=5.0%, 8=94.7%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.1%, 20=1.5%, 50=13.0%, 100=41.0%
     lat (msec): 250=42.6%, 500=0.8%, 750=0.4%, 1000=0.1%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=7631
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=6.5%, 8=93.3%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.0%, 20=1.3%, 50=9.3%, 100=53.2%
     lat (msec): 250=35.7%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=7632
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=0.3%, 4=6.6%, 8=92.9%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.2%, 4=0.2%, 10=0.0%, 20=2.2%, 50=8.9%, 100=48.2%
     lat (msec): 250=39.2%, 500=0.6%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):

Disk stats (read/write):
  cciss!c0d0: ios=4322/1732, merge=763/79, ticks=51388/25324, in_queue=76708, util=97.96%
0.44user 0.56system 0:21.61elapsed 4%CPU (0avgtext+0avgdata 0maxresident)k
451536inputs+163128outputs (0major+2448minor)pagefaults 0swaps