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] [ 13164/  3144 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [11.8% done] [ 11444/  4552 kb/s] [eta 00m:30s]
Threads: 3: [mmm] [14.3% done] [  7392/  8512 kb/s] [eta 00m:30s]
Threads: 3: [mmm] [16.7% done] [ 12916/  1088 kb/s] [eta 00m:30s]
Threads: 3: [mmm] [18.9% done] [  8268/  5148 kb/s] [eta 00m:30s]
Threads: 3: [mmm] [20.5% done] [  3671/  9168 kb/s] [eta 00m:31s]
Threads: 3: [mmm] [24.3% done] [ 10820/  2388 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [26.3% done] [  8960/  4728 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [30.6% done] [  5076/  6632 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [31.6% done] [  3856/  8772 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [34.2% done] [  5660/  7532 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [35.9% done] [  7124/  3236 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [38.5% done] [  7496/  4540 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [43.2% done] [  7268/  3340 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [43.6% done] [  4448/  5076 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [46.2% done] [  6660/  2432 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [47.5% done] [  4828/  3508 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [50.0% done] [  5376/  3040 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [52.5% done] [  8232/     0 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [52.4% done] [  2876/  5188 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [53.5% done] [  1980/  6380 kb/s] [eta 00m:20s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
Threads: 3: [mmm] [54.5% done] [  2868/  4372 kb/s] [eta 00m:20s]
fio: pid=20359, got signal=6
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=20360, got signal=6
Threads: 1: [m__] [58.1% done] [  5572/  1544 kb/s] [eta 00m:18s]
Threads: 1: [m__] [65.0% done] [  1256/  8156 kb/s] [eta 00m:14s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=20358, got signal=6

fio: (groupid=0): err= 0: pid=20358
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.9%, 2=4.2%, 4=37.5%, 8=57.4%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=1.0%, 4=0.1%, 10=2.4%, 20=6.6%, 50=27.6%, 100=14.8%
     lat (msec): 250=31.9%, 500=13.2%, 750=1.8%, 1000=0.1%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=20359
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.5%, 2=2.9%, 4=27.6%, 8=69.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.4%, 4=0.1%, 10=1.3%, 20=2.8%, 50=11.2%, 100=27.7%
     lat (msec): 250=52.5%, 500=3.4%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=20360
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.5%, 2=2.7%, 4=36.7%, 8=60.1%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.4%, 4=0.3%, 10=0.9%, 20=4.4%, 50=14.6%, 100=27.9%
     lat (msec): 250=45.3%, 500=5.0%, 750=0.2%, 1000=0.5%, >=2000=0.0%

Run status group 0 (all jobs):

Disk stats (read/write):
  sda: ios=3295/2525, merge=772/119, ticks=57764/146088, in_queue=203852, util=99.15%
0.24user 0.36system 0:27.68elapsed 2%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2495minor)pagefaults 0swaps