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] [ 13428/  3420 kb/s] [eta 00m:32s]
Threads: 3: [mmm] [11.4% done] [ 16552/     0 kb/s] [eta 00m:31s]
Threads: 3: [mmm] [14.7% done] [ 11760/  4440 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [17.1% done] [  9116/  5220 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [19.4% done] [  6756/  7468 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [22.2% done] [  6168/  6520 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [23.7% done] [  7036/  5664 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [26.3% done] [  9372/  2704 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [30.6% done] [  9156/  3648 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [35.3% done] [  2601/  9469 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [38.2% done] [  3328/ 10362 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [40.0% done] [  6210/  4816 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [41.7% done] [  8050/  2418 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [43.2% done] [  6679/  3308 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [44.7% done] [  4556/  5450 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [47.4% done] [  4580/  5383 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [48.7% done] [  5734/  2942 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [52.6% done] [  6065/  3103 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [52.5% done] [   890/  6935 kb/s] [eta 00m:19s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=1361, got signal=6
Threads: 2: [m_m] [53.7% done] [  5033/   638 kb/s] [eta 00m:19s]
Threads: 2: [m_m] [56.1% done] [  5439/   960 kb/s] [eta 00m:18s]
Threads: 2: [m_m] [57.1% done] [  2819/  4745 kb/s] [eta 00m:18s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
Threads: 2: [m_m] [58.1% done] [  5249/  1248 kb/s] [eta 00m:18s]
fio: pid=1362, got signal=6
Threads: 1: [m__] [63.4% done] [  8014/     0 kb/s] [eta 00m:15s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=1360, got signal=6

fio: (groupid=0): err= 0: pid=1360
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.4%, 2=1.6%, 4=36.8%, 8=61.3%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.4%, 4=0.0%, 10=0.3%, 20=4.9%, 50=27.8%, 100=16.1%
     lat (msec): 250=36.4%, 500=11.6%, 750=2.1%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=1361
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.5%, 2=2.7%, 4=32.5%, 8=64.3%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.5%, 4=0.0%, 10=0.4%, 20=3.9%, 50=17.9%, 100=24.9%
     lat (msec): 250=48.5%, 500=3.3%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=1362
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.4%, 2=2.1%, 4=34.8%, 8=62.7%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.4%, 4=0.0%, 10=0.4%, 20=3.8%, 50=16.1%, 100=25.6%
     lat (msec): 250=46.1%, 500=6.3%, 750=1.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):

Disk stats (read/write):
  sda: ios=3447/2247, merge=392/244, ticks=57520/46552, in_queue=104064, util=98.60%
0.20user 0.46system 0:28.07elapsed 2%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2485minor)pagefaults 0swaps