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] [ 11464/  5344 kb/s] [eta 00m:32s]
Threads: 3: [mmm] [12.1% done] [ 12244/  2836 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [14.3% done] [ 10916/  4584 kb/s] [eta 00m:30s]
Threads: 3: [mmm] [16.7% done] [  8492/  5716 kb/s] [eta 00m:30s]
Threads: 3: [mmm] [18.9% done] [  3736/ 11132 kb/s] [eta 00m:30s]
Threads: 3: [mmm] [21.6% done] [  5944/  6704 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [25.0% done] [  6560/  7184 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [27.8% done] [ 13204/     0 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [30.6% done] [ 10876/  2552 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [32.4% done] [ 12052/   320 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [36.1% done] [  8056/  3516 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [37.8% done] [  6340/  4700 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [41.7% done] [  4952/  6468 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [43.2% done] [  7572/  2652 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [45.9% done] [  8244/  1748 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [47.4% done] [  5020/  3300 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [48.7% done] [  3060/  5012 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [51.3% done] [  4092/  4904 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [52.5% done] [  5032/  3984 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [53.7% done] [  4524/  3056 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [54.8% done] [  3328/  3420 kb/s] [eta 00m:19s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=15059, got signal=6
Threads: 2: [mm_] [58.5% done] [  2368/  5620 kb/s] [eta 00m:17s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=15058, got signal=6
Threads: 1: [m__] [59.5% done] [  4936/  2160 kb/s] [eta 00m:17s]
Threads: 1: [m__] [66.7% done] [  1532/  7716 kb/s] [eta 00m:13s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=15057, got signal=6

fio: (groupid=0): err= 0: pid=15057
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.9%, 2=4.1%, 4=36.3%, 8=58.7%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=1.0%, 4=0.4%, 10=3.1%, 20=5.2%, 50=23.7%, 100=12.2%
     lat (msec): 250=39.8%, 500=13.4%, 750=0.7%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=15058
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.4%, 2=2.3%, 4=29.4%, 8=67.8%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.2%, 4=0.0%, 10=1.0%, 20=2.3%, 50=13.5%, 100=24.3%
     lat (msec): 250=53.9%, 500=3.7%, 750=0.5%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=15059
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.6%, 2=3.0%, 4=31.5%, 8=64.9%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.6%, 4=0.1%, 10=1.0%, 20=1.7%, 50=12.4%, 100=24.7%
     lat (msec): 250=56.0%, 500=3.1%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):

Disk stats (read/write):
  sda: ios=3281/2364, merge=584/218, ticks=58948/94004, in_queue=152952, util=99.02%
0.16user 0.35system 0:27.38elapsed 1%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2482minor)pagefaults 0swaps