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] [8.3% done] [  9707/  6318 kb/s] [eta 00m:33s]
Threads: 3: [mmm] [10.5% done] [ 15815/     0 kb/s] [eta 00m:34s]
Threads: 3: [mmm] [13.2% done] [  8456/  6225 kb/s] [eta 00m:33s]
Threads: 3: [mmm] [15.4% done] [ 10632/  3973 kb/s] [eta 00m:33s]
Threads: 3: [mmm] [18.4% done] [ 11077/  1743 kb/s] [eta 00m:31s]
Threads: 3: [mmm] [21.1% done] [  7472/  4953 kb/s] [eta 00m:30s]
Threads: 3: [mmm] [24.3% done] [  5532/  6569 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [27.0% done] [  9124/  3152 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [29.7% done] [  9172/  3904 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [32.4% done] [  3800/  9580 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [35.1% done] [  2784/ 11008 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [36.8% done] [  5512/  6000 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [39.5% done] [  5381/  7539 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [42.1% done] [  5552/  4548 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [43.6% done] [  5484/  4588 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [45.0% done] [  6164/  2488 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [46.3% done] [  5545/  2854 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [48.8% done] [  7284/   724 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [50.0% done] [  4852/  3179 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [52.4% done] [  3212/  4436 kb/s] [eta 00m:20s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=22301, got signal=6
Threads: 2: [m_m] [53.5% done] [  5884/  1436 kb/s] [eta 00m:20s]
Threads: 2: [m_m] [55.8% done] [  5804/  2620 kb/s] [eta 00m:19s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=22302, got signal=6
Threads: 1: [m__] [58.1% done] [  6178/  1049 kb/s] [eta 00m:18s]
Threads: 1: [m__] [65.0% done] [  8608/   204 kb/s] [eta 00m:14s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=22300, got signal=6

fio: (groupid=0): err= 0: pid=22300
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.4%, 2=1.8%, 4=34.8%, 8=63.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.5%, 4=0.0%, 10=1.3%, 20=3.8%, 50=28.4%, 100=15.5%
     lat (msec): 250=33.7%, 500=15.4%, 750=0.9%, 1000=0.1%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=22301
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.5%, 2=2.7%, 4=34.4%, 8=62.4%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.4%, 4=0.0%, 10=1.2%, 20=3.0%, 50=20.2%, 100=24.7%
     lat (msec): 250=47.0%, 500=3.3%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=22302
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.4%, 2=1.9%, 4=27.6%, 8=70.1%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.6%, 4=0.1%, 10=0.7%, 20=2.4%, 50=14.1%, 100=26.2%
     lat (msec): 250=50.7%, 500=4.3%, 750=0.6%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):

Disk stats (read/write):
  sda: ios=3538/2152, merge=304/300, ticks=59536/70328, in_queue=129864, util=99.13%
0.22user 0.28system 0:27.44elapsed 1%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2489minor)pagefaults 0swaps