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] [ 16737/  5481 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [17.4% done] [  8346/ 11291 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [21.7% done] [ 12182/  7968 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [27.3% done] [ 13479/  7622 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [30.4% done] [ 17327/  1866 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [34.8% done] [ 13377/  3705 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [37.5% done] [ 14803/  2917 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [41.7% done] [  8025/  7533 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [44.0% done] [  7476/  8126 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [48.0% done] [ 12007/  3169 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [50.0% done] [ 10722/  3782 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [53.8% done] [  4270/  7337 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [55.6% done] [  4962/  4990 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [59.3% done] [  7358/  3286 kb/s] [eta 00m:11s]
Threads: 3: [mmm] [60.7% done] [  9928/   972 kb/s] [eta 00m:11s]
Threads: 3: [mmm] [62.1% done] [  7215/  2021 kb/s] [eta 00m:11s]
Threads: 3: [mmm] [63.3% done] [  5619/  2503 kb/s] [eta 00m:11s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
Threads: 3: [mmm] [64.5% done] [  3449/  2863 kb/s] [eta 00m:11s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
Threads: 3: [mmm] [67.7% done] [  2049/  2600 kb/s] [eta 00m:10s]
fio: pid=28840, got signal=6
fio: pid=28841, got signal=6
fio: pid=28842, got signal=6

fio: (groupid=0): err= 0: pid=28840
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=0.3%, 4=4.8%, 8=94.7%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.1%, 4=0.4%, 10=0.1%, 20=1.7%, 50=11.2%, 100=42.6%
     lat (msec): 250=42.1%, 500=1.3%, 750=0.4%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=28841
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=4.9%, 8=94.9%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.1%, 20=0.0%, 50=8.9%, 100=46.2%
     lat (msec): 250=44.0%, 500=0.5%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=28842
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=5.1%, 8=94.7%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.1%, 20=0.9%, 50=8.4%, 100=47.7%
     lat (msec): 250=42.5%, 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=3873/2058, merge=595/161, ticks=47340/27960, in_queue=75292, util=95.51%
0.32user 0.53system 0:22.16elapsed 3%CPU (0avgtext+0avgdata 0maxresident)k
430760inputs+183528outputs (0major+2456minor)pagefaults 0swaps