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] [ 11216/  5752 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [12.9% done] [ 16060/   276 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [16.1% done] [ 11704/  3844 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [18.8% done] [  8180/  6108 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [22.6% done] [  8596/  5480 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [25.0% done] [  9428/  4312 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [28.1% done] [  3196/ 12176 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [31.2% done] [  4904/  7104 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [33.3% done] [  7748/  4036 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [35.3% done] [ 10225/  1717 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [38.2% done] [  4952/  7780 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [41.2% done] [  6836/  4844 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [42.9% done] [  7472/  2848 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [45.7% done] [  4088/  6654 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [48.6% done] [  4025/  6864 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [50.0% done] [  6352/  2945 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [51.4% done] [  5147/  3414 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [54.1% done] [  6222/  1126 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [53.8% done] [  3757/  4426 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [56.4% done] [  2930/  4781 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [57.5% done] [  2225/  5789 kb/s] [eta 00m:17s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=5877, got signal=6
fio: pid=5878, got signal=6
Threads: 1: [m__] [62.5% done] [   582/  7888 kb/s] [eta 00m:15s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
Threads: 1: [m__] [67.5% done] [  4970/  1654 kb/s] [eta 00m:13s]
fio: pid=5876, got signal=6

fio: (groupid=0): err= 0: pid=5876
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.7%, 2=4.6%, 4=41.8%, 8=53.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.8%, 4=0.0%, 10=0.4%, 20=4.9%, 50=29.6%, 100=14.1%
     lat (msec): 250=34.5%, 500=14.4%, 750=0.9%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=5877
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.9%, 2=4.6%, 4=36.6%, 8=57.9%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=1.0%, 4=0.0%, 10=0.2%, 20=3.8%, 50=17.5%, 100=23.0%
     lat (msec): 250=49.3%, 500=5.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=5878
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.5%, 2=2.7%, 4=34.1%, 8=62.6%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.7%, 4=0.1%, 10=0.2%, 20=2.6%, 50=12.1%, 100=27.2%
     lat (msec): 250=51.9%, 500=4.7%, 750=0.2%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):

Disk stats (read/write):
  sda: ios=2953/2758, merge=522/213, ticks=54768/39768, in_queue=94528, util=98.00%
0.23user 0.38system 0:27.38elapsed 2%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2487minor)pagefaults 0swaps