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] [11.5% done] [ 13884/  4750 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [15.4% done] [ 14211/  4262 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [19.2% done] [ 16384/  2554 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [23.1% done] [  9875/  5934 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [28.0% done] [  8476/  8797 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [30.8% done] [  9630/  6574 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [33.3% done] [ 12889/  2875 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [37.0% done] [ 11584/  3672 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [40.7% done] [  6501/  8899 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [42.9% done] [  9574/  4319 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [44.8% done] [ 10384/  2867 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [48.3% done] [ 13650/   374 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [51.7% done] [  8309/  3249 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [55.2% done] [ 10187/  1779 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [56.7% done] [  7777/  3359 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [60.0% done] [  7773/  2375 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [61.3% done] [  4953/  3799 kb/s] [eta 00m:12s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
Threads: 3: [mmm] [62.5% done] [  6926/   850 kb/s] [eta 00m:12s]
fio: pid=8322, got signal=6
Threads: 2: [mm_] [63.6% done] [  5702/  1866 kb/s] [eta 00m:12s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
Threads: 2: [mm_] [66.7% done] [  6727/   382 kb/s] [eta 00m:11s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=8320, got signal=6
fio: pid=8321, got signal=6

fio: (groupid=0): err= 0: pid=8320
  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=0.0%, 20=1.8%, 50=10.3%, 100=41.6%
     lat (msec): 250=43.3%, 500=2.0%, 750=0.4%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=8321
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=2.9%, 8=96.9%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.0%, 20=0.0%, 50=9.1%, 100=40.5%
     lat (msec): 250=46.7%, 500=2.8%, 750=0.4%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=8322
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=0.3%, 4=5.1%, 8=94.4%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.4%, 20=1.7%, 50=9.3%, 100=47.7%
     lat (msec): 250=39.9%, 500=0.8%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):

Disk stats (read/write):
  cciss!c0d0: ios=4333/1500, merge=609/365, ticks=51712/27792, in_queue=79492, util=97.64%
0.21user 0.34system 0:23.30elapsed 2%CPU (0avgtext+0avgdata 0maxresident)k
450936inputs+163344outputs (0major+2457minor)pagefaults 0swaps