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] [7.1% done] [ 12700/  4364 kb/s] [eta 00m:39s]
Threads: 3: [mmm] [8.7% done] [  7952/  7164 kb/s] [eta 00m:42s]
Threads: 3: [mmm] [10.0% done] [  6276/ 10764 kb/s] [eta 00m:45s]
Threads: 3: [mmm] [12.8% done] [  7623/  7090 kb/s] [eta 00m:41s]
Threads: 3: [mmm] [15.6% done] [  8712/  5556 kb/s] [eta 00m:38s]
Threads: 3: [mmm] [17.8% done] [  9356/  2828 kb/s] [eta 00m:37s]
Threads: 3: [mmm] [20.5% done] [  8220/  5028 kb/s] [eta 00m:35s]
Threads: 3: [mmm] [22.2% done] [  8604/  2800 kb/s] [eta 00m:35s]
Threads: 3: [mmm] [25.0% done] [  8460/  4476 kb/s] [eta 00m:33s]
Threads: 3: [mmm] [27.9% done] [  7616/  5000 kb/s] [eta 00m:31s]
Threads: 3: [mmm] [31.7% done] [  9532/  3188 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [35.0% done] [  3976/  7496 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [36.6% done] [ 10700/  1004 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [38.1% done] [  3092/  8060 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [40.5% done] [  8500/   900 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [41.9% done] [  7808/  1040 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [43.2% done] [  5452/  4620 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [45.5% done] [  3436/  5272 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [48.8% done] [  2452/  5612 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [51.2% done] [  4344/  4680 kb/s] [eta 00m:21s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
Threads: 3: [mmm] [51.1% done] [  2556/  5136 kb/s] [eta 00m:22s]
fio: pid=16492, got signal=6
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=16493, got signal=6
Threads: 1: [m__] [54.5% done] [  4452/  2684 kb/s] [eta 00m:20s]
Threads: 1: [m__] [61.0% done] [  3680/  5376 kb/s] [eta 00m:16s]
Threads: 1: [m__] [65.0% done] [  3472/  4552 kb/s] [eta 00m:14s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=16491, got signal=6

fio: (groupid=0): err= 0: pid=16491
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=1.1%, 2=4.4%, 4=41.2%, 8=53.3%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=1.6%, 4=0.0%, 10=2.6%, 20=6.8%, 50=34.7%, 100=12.4%
     lat (msec): 250=26.8%, 500=13.9%, 750=0.8%, 1000=0.3%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=16492
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.4%, 2=2.6%, 4=33.4%, 8=63.6%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.9%, 4=0.1%, 10=1.3%, 20=2.9%, 50=13.9%, 100=25.1%
     lat (msec): 250=50.0%, 500=5.5%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=16493
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.6%, 2=2.8%, 4=30.0%, 8=66.5%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.9%, 4=0.1%, 10=1.1%, 20=2.4%, 50=14.4%, 100=26.1%
     lat (msec): 250=50.6%, 500=3.9%, 750=0.2%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):

Disk stats (read/write):
  sda: ios=3324/2539, merge=435/265, ticks=59324/61900, in_queue=121224, util=98.88%
0.22user 0.46system 0:27.40elapsed 2%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2494minor)pagefaults 0swaps