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] [8.1% done] [  6280/  7372 kb/s] [eta 00m:34s]
Threads: 3: [mmm] [10.8% done] [  7080/  6496 kb/s] [eta 00m:33s]
Threads: 3: [mmm] [13.9% done] [  9976/  2020 kb/s] [eta 00m:31s]
Threads: 3: [mmm] [16.7% done] [  6100/  7976 kb/s] [eta 00m:30s]
Threads: 3: [mmm] [19.4% done] [  5550/  5829 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [21.6% done] [  7044/  3164 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [24.3% done] [  9825/  1872 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [27.0% done] [  7316/  2868 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [28.9% done] [  6664/  3876 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [30.8% done] [  6383/  4757 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [33.3% done] [  2480/  6684 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [35.0% done] [  5920/  3464 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [37.5% done] [  3708/  6612 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [39.0% done] [  7347/  2098 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [41.5% done] [  3384/  5476 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [43.9% done] [  5452/  3960 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [45.2% done] [  6176/  1884 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [46.5% done] [  4468/  2928 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [47.7% done] [  5112/  2644 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [50.0% done] [  3768/  3576 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [51.1% done] [  3640/  2316 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [52.2% done] [  2956/  3916 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [53.2% done] [  3100/  3948 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [54.2% done] [  2932/  4208 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [55.1% done] [  4844/  1444 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [57.1% done] [  2244/  4572 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] [56.9% done] [  5276/  1336 kb/s] [eta 00m:22s]
fio: pid=15131, got signal=6
Threads: 2: [_mm] [57.7% done] [  5658/  2257 kb/s] [eta 00m:22s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=15132, got signal=6
Threads: 1: [__m] [59.6% done] [  4556/  3324 kb/s] [eta 00m:21s]
Threads: 1: [__m] [65.3% done] [  7572/     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=15133, got signal=6

fio: (groupid=0): err= 0: pid=15131
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.3%, 2=1.4%, 4=17.9%, 8=80.4%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.7%, 4=0.0%, 10=1.7%, 20=1.3%, 50=16.0%, 100=9.0%
     lat (msec): 250=66.6%, 500=4.6%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=15132
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=0.7%, 4=16.6%, 8=82.5%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.1%, 4=0.0%, 10=0.2%, 20=2.6%, 50=21.0%, 100=3.2%
     lat (msec): 250=62.7%, 500=9.4%, 750=0.4%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=15133
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.3%, 2=1.0%, 4=18.0%, 8=80.7%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.4%, 4=0.0%, 10=1.1%, 20=2.1%, 50=23.3%, 100=2.2%
     lat (msec): 250=60.4%, 500=8.8%, 750=0.6%, 1000=0.6%, >=2000=0.0%

Run status group 0 (all jobs):

Disk stats (read/write):
  sda: ios=3323/2245, merge=388/402, ticks=71428/41044, in_queue=112480, util=99.04%
0.12user 0.34system 0:33.96elapsed 1%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2519minor)pagefaults 0swaps