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] [10.3% done] [ 11233/  6325 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [13.3% done] [ 13037/  3226 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [15.6% done] [  8520/  6212 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [18.2% done] [  3048/ 12688 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [20.0% done] [  5095/  7121 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [22.2% done] [  6233/  5707 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [25.7% done] [  8284/  4760 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [28.6% done] [  6148/  7496 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [30.6% done] [  8800/  3200 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [33.3% done] [  7216/  6424 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [35.1% done] [  6088/  6328 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [36.8% done] [  5349/  7166 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [38.5% done] [  1680/  9180 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [41.0% done] [  9252/  1024 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [42.5% done] [  6412/  3064 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [43.9% done] [  6400/  3232 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [45.2% done] [  2860/  6184 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [46.5% done] [  2852/  6164 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [47.7% done] [  1964/  6280 kb/s] [eta 00m:23s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=16554, got signal=6
Threads: 2: [mm_] [50.0% done] [  5497/  1928 kb/s] [eta 00m:22s]
Threads: 2: [mm_] [53.5% done] [  3332/  5282 kb/s] [eta 00m:20s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=16553, got signal=6
Threads: 1: [m__] [55.8% done] [  2968/  4224 kb/s] [eta 00m:19s]
Threads: 1: [m__] [62.5% done] [  4488/  4196 kb/s] [eta 00m:15s]
Threads: 1: [m__] [66.7% done] [  2352/  6040 kb/s] [eta 00m:13s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=16552, got signal=6

fio: (groupid=0): err= 0: pid=16552
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.9%, 2=4.8%, 4=37.5%, 8=56.8%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=2.1%, 4=0.1%, 10=2.4%, 20=4.8%, 50=33.2%, 100=10.6%
     lat (msec): 250=29.6%, 500=16.1%, 750=1.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=16553
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.4%, 2=2.8%, 4=37.4%, 8=59.3%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.8%, 4=0.0%, 10=1.2%, 20=3.8%, 50=17.3%, 100=26.7%
     lat (msec): 250=45.1%, 500=4.5%, 750=0.1%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=16554
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.6%, 2=4.2%, 4=38.2%, 8=57.1%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.9%, 4=0.2%, 10=2.2%, 20=2.9%, 50=16.5%, 100=28.1%
     lat (msec): 250=45.4%, 500=3.5%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):

Disk stats (read/write):
  sda: ios=2656/3143, merge=346/218, ticks=47488/52808, in_queue=100292, util=97.13%
0.24user 0.33system 0:27.83elapsed 2%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2499minor)pagefaults 0swaps