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] [ 20297/  1229 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [17.4% done] [ 10572/  9887 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [21.7% done] [ 13427/  5343 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [26.1% done] [  6080/ 11364 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [30.4% done] [ 11916/  6504 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [34.8% done] [ 16610/  3048 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [37.5% done] [ 12388/  4580 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [41.7% done] [  4740/  9460 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [44.0% done] [ 13098/  2268 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [48.0% done] [ 12764/  2352 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [52.0% done] [ 14096/     0 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [53.8% done] [  7692/  3976 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [55.6% done] [  4248/  7204 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [57.1% done] [  5628/  4028 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [60.7% done] [  5248/  4552 kb/s] [eta 00m:11s]
Threads: 3: [mmm] [62.1% done] [  6872/  3056 kb/s] [eta 00m:11s]
Threads: 3: [mmm] [63.3% done] [  3100/  3804 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] [62.5% done] [   864/  4280 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] [67.7% done] [  1057/  4096 kb/s] [eta 00m:10s]
fio: pid=20262, got signal=6
fio: pid=20263, got signal=6
fio: pid=20264, got signal=6

fio: (groupid=0): err= 0: pid=20262
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=0.2%, 4=12.8%, 8=86.7%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.1%, 4=0.0%, 10=0.2%, 20=0.3%, 50=10.7%, 100=44.2%
     lat (msec): 250=43.7%, 500=0.2%, 750=0.4%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=20263
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.2%, 4=15.4%, 8=84.3%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.0%, 20=0.4%, 50=11.7%, 100=45.2%
     lat (msec): 250=42.2%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=20264
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=13.5%, 8=86.2%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.0%, 20=1.1%, 50=15.0%, 100=32.1%
     lat (msec): 250=49.9%, 500=0.5%, 750=0.7%, 1000=0.2%, >=2000=0.0%

Run status group 0 (all jobs):

Disk stats (read/write):
  cciss!c0d0: ios=3647/2319, merge=589/110, ticks=47052/30000, in_queue=77048, util=94.81%
0.31user 0.38system 0:23.19elapsed 3%CPU (0avgtext+0avgdata 0maxresident)k
419304inputs+194656outputs (0major+2445minor)pagefaults 0swaps