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] [ 10886/ 10768 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [17.4% done] [  8440/  9981 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [21.7% done] [ 12572/  6196 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [26.1% done] [ 15041/  4079 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [30.4% done] [ 13758/  4343 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [33.3% done] [ 11292/  4790 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [36.0% done] [  6329/  8497 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [40.0% done] [ 13084/  3770 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [44.0% done] [  9802/  5564 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [46.2% done] [  3738/ 10443 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [50.0% done] [  7630/  5544 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [51.9% done] [  7634/  5991 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [55.6% done] [ 11747/  1000 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [57.1% done] [  8090/  3103 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [60.7% done] [ 10286/   724 kb/s] [eta 00m:11s]
Threads: 3: [mmm] [62.1% done] [  7329/  2436 kb/s] [eta 00m:11s]
Threads: 3: [mmm] [63.3% done] [  8594/   996 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] [64.5% done] [  2782/  4519 kb/s] [eta 00m:11s]
fio: pid=28048, got signal=6
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=28049, got signal=6
Threads: 1: [m__] [65.6% done] [  2590/  3408 kb/s] [eta 00m:11s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=28047, got signal=6

fio: (groupid=0): err= 0: pid=28047
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=0.3%, 4=5.1%, 8=94.5%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.1%, 4=0.0%, 10=0.1%, 20=0.2%, 50=11.2%, 100=40.4%
     lat (msec): 250=46.4%, 500=1.1%, 750=0.3%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=28048
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=5.7%, 8=94.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.0%, 20=0.4%, 50=12.4%, 100=46.1%
     lat (msec): 250=40.6%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=28049
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.2%, 4=5.4%, 8=94.3%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.1%, 4=0.1%, 10=0.2%, 20=0.4%, 50=8.6%, 100=46.2%
     lat (msec): 250=43.3%, 500=0.4%, 750=0.3%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):

Disk stats (read/write):
  cciss!c0d0: ios=3780/2331, merge=698/130, ticks=46992/33996, in_queue=80984, util=98.62%
0.18user 0.38system 0:21.97elapsed 2%CPU (0avgtext+0avgdata 0maxresident)k
387960inputs+226256outputs (0major+2459minor)pagefaults 0swaps