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] [9.4% done] [ 11380/  4756 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [12.5% done] [  6562/  9437 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [16.1% done] [  8392/  6912 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [17.6% done] [  4044/  9472 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [21.2% done] [  7487/  7247 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [23.5% done] [  9140/  4432 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [25.0% done] [  5425/  7166 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [27.8% done] [  9584/  3260 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [29.7% done] [  9217/  3475 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [32.4% done] [  7396/  5052 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [35.1% done] [  7779/  4043 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [36.8% done] [  5508/  7128 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [39.5% done] [  6336/  5268 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [41.0% done] [  7334/  3502 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [42.5% done] [  6420/  3252 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [45.0% done] [  2872/  7560 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [46.3% done] [  4156/  4688 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [50.0% done] [  4808/  4468 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [51.2% done] [  4996/  3070 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [53.7% done] [  3808/  4200 kb/s] [eta 00m:19s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=4103, got signal=6
Threads: 2: [m_m] [54.8% done] [  5773/   952 kb/s] [eta 00m:19s]
Threads: 2: [m_m] [57.1% done] [  3880/  4280 kb/s] [eta 00m:18s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=4104, got signal=6
Threads: 1: [m__] [61.0% done] [  4472/  3643 kb/s] [eta 00m:16s]
Threads: 1: [m__] [66.7% done] [  7536/     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=4102, got signal=6

fio: (groupid=0): err= 0: pid=4102
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.6%, 2=2.3%, 4=38.4%, 8=58.8%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=1.0%, 4=0.1%, 10=0.9%, 20=3.3%, 50=32.9%, 100=13.3%
     lat (msec): 250=31.4%, 500=14.8%, 750=1.5%, 1000=0.2%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=4103
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.5%, 2=3.3%, 4=35.9%, 8=60.2%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.7%, 4=0.0%, 10=1.0%, 20=4.3%, 50=19.1%, 100=23.0%
     lat (msec): 250=46.3%, 500=4.9%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=4104
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.6%, 2=1.9%, 4=29.4%, 8=68.1%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.3%, 4=0.1%, 10=1.2%, 20=2.5%, 50=11.9%, 100=24.1%
     lat (msec): 250=54.5%, 500=4.9%, 750=0.2%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):

Disk stats (read/write):
  sda: ios=3352/2321, merge=449/281, ticks=55412/46908, in_queue=102320, util=99.05%
2.96user 1.62system 0:27.67elapsed 16%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2488minor)pagefaults 0swaps