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] [9.7% done] [ 14568/  2075 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [13.3% done] [ 12610/  4088 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [16.1% done] [  9661/  5809 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [17.6% done] [  6140/  8987 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [20.6% done] [  7636/  5828 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [23.5% done] [ 10247/  2871 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [26.5% done] [ 10941/  2733 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [28.6% done] [  9657/  4178 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [29.7% done] [ 10003/  2784 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [30.8% done] [  2520/  9960 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [33.3% done] [  8266/  2961 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [35.9% done] [  5596/  5222 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [37.5% done] [ 10153/   937 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [40.0% done] [  8522/  2083 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [42.5% done] [  5116/  3698 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [45.0% done] [  9779/     0 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [46.3% done] [  5387/  3024 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [48.8% done] [  6061/  1799 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [51.2% done] [  6616/  1847 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [52.4% done] [  3572/  4332 kb/s] [eta 00m:20s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=15543, got signal=6
Threads: 2: [m_m] [54.8% done] [  3422/  4387 kb/s] [eta 00m:19s]
Threads: 2: [m_m] [55.8% done] [   925/  6715 kb/s] [eta 00m:19s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=15544, got signal=6
Threads: 1: [m__] [59.5% done] [  6667/  1142 kb/s] [eta 00m:17s]
Threads: 1: [m__] [65.9% done] [   228/  8841 kb/s] [eta 00m:14s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=15542, got signal=6

fio: (groupid=0): err= 0: pid=15542
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.8%, 2=4.4%, 4=37.0%, 8=57.8%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=1.8%, 4=0.0%, 10=0.9%, 20=10.6%, 50=23.8%, 100=11.0%
     lat (msec): 250=38.3%, 500=11.9%, 750=0.9%, 1000=0.2%, >=2000=0.1%
fio: (groupid=0): err= 0: pid=15543
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=1.7%, 4=30.1%, 8=68.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.1%, 4=0.0%, 10=0.4%, 20=1.9%, 50=13.2%, 100=31.0%
     lat (msec): 250=48.4%, 500=4.5%, 750=0.1%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=15544
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.5%, 2=3.9%, 4=34.4%, 8=61.2%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.8%, 4=0.1%, 10=0.3%, 20=4.5%, 50=14.9%, 100=26.8%
     lat (msec): 250=46.6%, 500=5.3%, 750=0.2%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):

Disk stats (read/write):
  sda: ios=3578/2114, merge=442/240, ticks=63236/170220, in_queue=233456, util=98.78%
0.22user 0.30system 0:27.56elapsed 1%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2481minor)pagefaults 0swaps