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] [  6972/ 10532 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [10.5% done] [ 12828/  3238 kb/s] [eta 00m:34s]
Threads: 3: [mmm] [14.3% done] [ 11719/  4104 kb/s] [eta 00m:30s]
Threads: 3: [mmm] [17.1% done] [  7898/  6783 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [19.4% done] [ 10942/  4303 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [21.6% done] [  8094/  4575 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [23.1% done] [  7249/  4839 kb/s] [eta 00m:30s]
Threads: 3: [mmm] [26.3% done] [ 11109/  3681 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [28.9% done] [  8358/  4429 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [30.8% done] [  4847/  7277 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [33.3% done] [  5562/  7224 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [36.8% done] [  7968/  4453 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [39.5% done] [  6465/  5432 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [41.0% done] [  8496/  1820 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [44.7% done] [  4347/  6371 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [47.4% done] [  7257/  1771 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [48.7% done] [  3933/  4555 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [51.3% done] [  4583/  3576 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [52.5% done] [  5160/  2828 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [53.7% done] [  4339/  4295 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [54.8% done] [  5697/  1747 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [55.8% done] [  3998/  2986 kb/s] [eta 00m:19s]
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=14606, got signal=6
fio: pid=14607, got signal=6
Threads: 1: [m__] [61.0% done] [  3429/  5404 kb/s] [eta 00m:16s]
Threads: 1: [m__] [66.7% done] [  3197/  5274 kb/s] [eta 00m:13s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=14605, got signal=6

fio: (groupid=0): err= 0: pid=14605
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.4%, 2=2.7%, 4=30.7%, 8=66.2%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.9%, 4=0.6%, 10=0.9%, 20=8.9%, 50=25.4%, 100=16.3%
     lat (msec): 250=29.5%, 500=14.9%, 750=1.8%, 1000=0.1%, >=2000=0.1%
fio: (groupid=0): err= 0: pid=14606
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.3%, 2=1.6%, 4=19.2%, 8=78.9%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.4%, 4=0.2%, 10=0.4%, 20=1.4%, 50=12.0%, 100=26.0%
     lat (msec): 250=55.1%, 500=3.7%, 750=0.1%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=14607
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.3%, 2=2.6%, 4=30.9%, 8=66.2%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.1%, 4=0.1%, 10=1.0%, 20=3.3%, 50=16.0%, 100=27.3%
     lat (msec): 250=45.7%, 500=5.9%, 750=0.4%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):

Disk stats (read/write):
  sda: ios=3186/2455, merge=594/322, ticks=56352/41960, in_queue=98300, util=99.00%
0.28user 0.34system 0:26.73elapsed 2%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2514minor)pagefaults 0swaps