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] [7.7% done] [  5927/  6884 kb/s] [eta 00m:36s]
Threads: 3: [mmm] [10.3% done] [ 10972/  2623 kb/s] [eta 00m:35s]
Threads: 3: [mmm] [13.5% done] [ 12847/   287 kb/s] [eta 00m:32s]
Threads: 3: [mmm] [16.2% done] [ 10141/  1662 kb/s] [eta 00m:31s]
Threads: 3: [mmm] [19.4% done] [  9318/  2524 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [21.1% done] [  4560/  6759 kb/s] [eta 00m:30s]
Threads: 3: [mmm] [24.3% done] [  3581/  7242 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [27.0% done] [  3135/  8275 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [28.9% done] [  5100/  5620 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [30.0% done] [  6128/  3656 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [32.5% done] [  3216/  7588 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [34.1% done] [  5704/  2980 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [36.6% done] [  7745/  1960 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [39.0% done] [  7620/  1700 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [40.5% done] [  4080/  4977 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [42.9% done] [  2416/  6640 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [45.2% done] [  3644/  5180 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [46.5% done] [  2786/  4400 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [47.7% done] [  6132/  1720 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [48.9% done] [  3916/  3112 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [51.1% done] [  3936/  2780 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [52.2% done] [  2652/  4388 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [54.3% done] [  3392/  3248 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [55.3% done] [  4528/   972 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [57.4% done] [  3936/  3096 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [59.2% done] [  1528/  5540 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [60.0% done] [   820/  6068 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [62.0% done] [  3252/  3964 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [64.0% done] [  6328/   284 kb/s] [eta 00m:18s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=5159, got signal=6
Threads: 2: [_mm] [63.5% done] [  5272/     0 kb/s] [eta 00m:19s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=5160, got signal=6
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=5161, got signal=6

fio: (groupid=0): err= 0: pid=5159
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.3%, 2=1.5%, 4=19.3%, 8=78.9%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.3%, 4=0.0%, 10=0.9%, 20=3.7%, 50=13.9%, 100=7.9%
     lat (msec): 250=66.6%, 500=6.2%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=5160
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=16.4%, 8=83.4%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.0%, 20=0.7%, 50=18.2%, 100=3.3%
     lat (msec): 250=68.5%, 500=8.8%, 750=0.1%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=5161
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.3%, 2=0.9%, 4=14.1%, 8=84.7%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.4%, 4=0.0%, 10=0.3%, 20=1.9%, 50=13.9%, 100=4.6%
     lat (msec): 250=69.4%, 500=7.6%, 750=0.3%, 1000=0.5%, >=2000=0.7%

Run status group 0 (all jobs):

Disk stats (read/write):
  sda: ios=3239/2321, merge=621/434, ticks=74504/44504, in_queue=119008, util=99.22%
0.11user 0.21system 0:34.31elapsed 0%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2518minor)pagefaults 0swaps