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] [10.7% done] [ 12391/  3640 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [13.8% done] [  9811/  6055 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [14.7% done] [ 10085/  5183 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [17.1% done] [ 11492/  2024 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [19.4% done] [  6281/  8601 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [21.6% done] [  6640/  7034 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [24.3% done] [  8030/  3457 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [26.3% done] [  9117/  3824 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [28.9% done] [ 10342/  2099 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [32.4% done] [  7546/  4789 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [34.2% done] [  9479/  2780 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [38.9% done] [  7026/  5517 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [40.5% done] [  9271/  1441 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [43.2% done] [  7616/  2938 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [45.9% done] [  4682/  5710 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [47.4% done] [  4990/  4367 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [48.7% done] [  4533/  3757 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [50.0% done] [  4588/  4367 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [51.2% done] [  5513/  2776 kb/s] [eta 00m:20s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=29613, got signal=6
Threads: 2: [m_m] [52.3% done] [  5533/  1827 kb/s] [eta 00m:21s]
Threads: 2: [m_m] [55.8% done] [  1528/  7435 kb/s] [eta 00m:19s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
Threads: 2: [m_m] [56.8% done] [  4214/  2496 kb/s] [eta 00m:19s]
fio: pid=29614, got signal=6
Threads: 1: [m__] [61.9% done] [  4096/  4627 kb/s] [eta 00m:16s]
Threads: 1: [m__] [67.5% done] [  7010/     0 kb/s] [eta 00m:13s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=29612, got signal=6

fio: (groupid=0): err= 0: pid=29612
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.5%, 2=3.5%, 4=40.6%, 8=55.3%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.8%, 4=0.1%, 10=0.1%, 20=4.9%, 50=33.6%, 100=11.2%
     lat (msec): 250=36.0%, 500=10.8%, 750=1.8%, 1000=0.3%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=29613
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.6%, 2=3.2%, 4=35.6%, 8=60.7%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.6%, 4=0.2%, 10=0.1%, 20=2.7%, 50=16.6%, 100=26.2%
     lat (msec): 250=49.9%, 500=3.2%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=29614
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.8%, 2=3.3%, 4=36.9%, 8=58.9%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.4%, 4=0.0%, 10=0.0%, 20=5.6%, 50=15.4%, 100=27.1%
     lat (msec): 250=44.0%, 500=6.2%, 750=1.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):

Disk stats (read/write):
  sda: ios=3547/2148, merge=550/143, ticks=59188/40708, in_queue=99896, util=98.96%
0.23user 0.32system 0:27.56elapsed 2%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2484minor)pagefaults 0swaps