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] [8.8% done] [  7316/  5348 kb/s] [eta 00m:31s]
Threads: 3: [mmm] [11.4% done] [  8576/  2848 kb/s] [eta 00m:31s]
Threads: 3: [mmm] [13.9% done] [  7504/  5692 kb/s] [eta 00m:31s]
Threads: 3: [mmm] [17.1% done] [  7732/  5752 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [19.4% done] [  5844/  6888 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [21.6% done] [  4600/  6844 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [23.7% done] [  8208/  3108 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [26.3% done] [  6892/  4392 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [28.2% done] [  6104/  4852 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [30.0% done] [  9673/     0 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [32.5% done] [  6297/  2637 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [34.1% done] [  7793/  1798 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [36.6% done] [  6144/  4328 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [39.0% done] [  3164/  7492 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [40.5% done] [  4788/  3820 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [41.9% done] [  3412/  5116 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [44.2% done] [  5524/  2588 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [46.5% done] [  5456/  2348 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [47.7% done] [  6920/   760 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [50.0% done] [  4920/  1972 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [51.1% done] [  3060/  3340 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [52.2% done] [  2760/  3752 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [54.3% done] [  2652/  3652 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [56.5% done] [  2472/  5356 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [58.7% done] [  5745/   828 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [58.3% done] [  4008/  2920 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [59.2% done] [  2514/  5205 kb/s] [eta 00m:20s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=11609, got signal=6
Threads: 2: [m_m] [61.2% done] [  2236/  4884 kb/s] [eta 00m:19s]
Threads: 2: [m_m] [62.0% done] [  6037/     0 kb/s] [eta 00m:19s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=11608, got signal=6
Threads: 1: [__m] [65.3% done] [  7080/     0 kb/s] [eta 00m:17s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=11610, got signal=6

fio: (groupid=0): err= 0: pid=11608
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.3%, 2=0.9%, 4=18.2%, 8=80.5%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.3%, 4=0.0%, 10=0.7%, 20=3.0%, 50=20.3%, 100=7.1%
     lat (msec): 250=60.5%, 500=6.7%, 750=0.5%, 1000=0.4%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=11609
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.6%, 2=2.4%, 4=20.3%, 8=76.8%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.8%, 4=0.1%, 10=2.9%, 20=4.2%, 50=16.2%, 100=6.1%
     lat (msec): 250=62.5%, 500=6.8%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=11610
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=1.1%, 4=14.5%, 8=84.2%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.4%, 4=0.0%, 10=1.2%, 20=1.1%, 50=14.8%, 100=5.4%
     lat (msec): 250=65.8%, 500=9.2%, 750=1.2%, 1000=0.5%, >=2000=0.0%

Run status group 0 (all jobs):

Disk stats (read/write):
  sda: ios=3226/2355, merge=482/383, ticks=75044/39632, in_queue=114672, util=98.98%
0.10user 0.36system 0:33.78elapsed 1%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2520minor)pagefaults 0swaps