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] [7.5% done] [  9752/  5284 kb/s] [eta 00m:37s]
Threads: 3: [mmm] [10.3% done] [ 11508/  5208 kb/s] [eta 00m:35s]
Threads: 3: [mmm] [11.6% done] [  7904/  7476 kb/s] [eta 00m:38s]
Threads: 3: [mmm] [12.2% done] [ 11364/  2940 kb/s] [eta 00m:43s]
Threads: 3: [mmm] [15.2% done] [  8476/  6436 kb/s] [eta 00m:39s]
Threads: 3: [mmm] [18.2% done] [  4968/  9032 kb/s] [eta 00m:36s]
Threads: 3: [mmm] [20.5% done] [  4776/  9432 kb/s] [eta 00m:35s]
Threads: 3: [mmm] [22.7% done] [  8124/  4524 kb/s] [eta 00m:34s]
Threads: 3: [mmm] [26.8% done] [  8132/  4224 kb/s] [eta 00m:30s]
Threads: 3: [mmm] [30.8% done] [  5476/  7452 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [34.2% done] [  8112/  2812 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [36.8% done] [  5304/  7232 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [39.5% done] [  5140/  5876 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [41.0% done] [  5952/  3772 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [43.6% done] [  6752/  3896 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [47.4% done] [  3743/  6446 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [48.7% done] [  6176/  1608 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [50.0% done] [  5460/  3348 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [52.5% done] [  5260/  3076 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [53.7% done] [  6728/  1476 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [56.1% done] [  3436/  3632 kb/s] [eta 00m:18s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
Threads: 3: [mmm] [57.1% done] [  4400/  2224 kb/s] [eta 00m:18s]
fio: pid=8269, got signal=6
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=8270, got signal=6
Threads: 1: [m__] [61.0% done] [  1392/  6996 kb/s] [eta 00m:16s]
Threads: 1: [m__] [66.7% done] [  3376/  5312 kb/s] [eta 00m:13s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=8268, got signal=6

fio: (groupid=0): err= 0: pid=8268
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.8%, 2=5.7%, 4=37.6%, 8=56.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=2.4%, 4=0.0%, 10=1.7%, 20=6.7%, 50=24.9%, 100=15.1%
     lat (msec): 250=35.8%, 500=10.8%, 750=1.7%, 1000=0.2%, >=2000=0.3%
fio: (groupid=0): err= 0: pid=8269
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.5%, 2=2.3%, 4=31.7%, 8=65.5%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.5%, 4=0.0%, 10=0.3%, 20=1.7%, 50=12.8%, 100=28.7%
     lat (msec): 250=53.0%, 500=2.4%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=8270
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.5%, 2=2.1%, 4=30.7%, 8=66.7%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.5%, 4=0.1%, 10=1.1%, 20=1.5%, 50=12.1%, 100=26.3%
     lat (msec): 250=53.6%, 500=3.9%, 750=0.4%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):

Disk stats (read/write):
  sda: ios=3221/2549, merge=365/229, ticks=56828/79380, in_queue=136208, util=99.13%
0.25user 0.45system 0:27.22elapsed 2%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2497minor)pagefaults 0swaps