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] [8.6% done] [ 13140/  3240 kb/s] [eta 00m:32s]
Threads: 3: [mmm] [12.5% done] [ 10802/  5337 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [15.2% done] [ 12967/  1390 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [18.2% done] [  7891/  6492 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [19.4% done] [ 13448/  1152 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [22.2% done] [ 10568/  1560 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [24.3% done] [  5012/  8280 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [26.3% done] [  6736/  4744 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [29.7% done] [  6212/  5552 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [32.4% done] [  6036/  5448 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [35.1% done] [  6156/  6452 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [36.8% done] [  6524/  5760 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [39.5% done] [  7588/  4080 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [41.0% done] [  3376/  6744 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [42.5% done] [  7740/  3056 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [45.0% done] [  6780/  1860 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [47.5% done] [  3796/  5968 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [48.8% done] [  5960/  2196 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [50.0% done] [  3208/  5800 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [51.2% done] [  3888/  3380 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [52.3% done] [  5740/  2104 kb/s] [eta 00m:21s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=13834, got signal=6
Threads: 2: [m_m] [54.5% done] [  4148/  3072 kb/s] [eta 00m:20s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=13835, got signal=6
Threads: 1: [m__] [59.5% done] [  7488/   896 kb/s] [eta 00m:17s]
Threads: 1: [m__] [65.0% done] [  8172/     0 kb/s] [eta 00m:14s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=13833, got signal=6

fio: (groupid=0): err= 0: pid=13833
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=1.5%, 4=34.7%, 8=63.5%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.2%, 4=0.1%, 10=0.8%, 20=3.5%, 50=36.7%, 100=9.1%
     lat (msec): 250=34.7%, 500=12.7%, 750=1.8%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=13834
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.7%, 2=2.7%, 4=32.4%, 8=64.2%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.3%, 4=0.0%, 10=0.8%, 20=2.1%, 50=16.2%, 100=24.5%
     lat (msec): 250=52.4%, 500=3.2%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=13835
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.8%, 2=4.3%, 4=34.1%, 8=60.8%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=1.2%, 4=0.0%, 10=2.2%, 20=2.7%, 50=12.4%, 100=27.6%
     lat (msec): 250=47.1%, 500=5.9%, 750=0.6%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):

Disk stats (read/write):
  sda: ios=3477/2406, merge=402/232, ticks=57396/43912, in_queue=101304, util=98.93%
0.18user 0.37system 0:27.85elapsed 1%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2483minor)pagefaults 0swaps