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] [  5268/ 12168 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [11.4% done] [  9980/  6892 kb/s] [eta 00m:31s]
Threads: 3: [mmm] [14.3% done] [  4224/ 10656 kb/s] [eta 00m:30s]
Threads: 3: [mmm] [16.7% done] [  9752/  5140 kb/s] [eta 00m:30s]
Threads: 3: [mmm] [18.9% done] [ 10436/  2440 kb/s] [eta 00m:30s]
Threads: 3: [mmm] [20.5% done] [  5488/  7680 kb/s] [eta 00m:31s]
Threads: 3: [mmm] [23.7% done] [  9392/  3284 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [26.3% done] [  6640/  6356 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [28.9% done] [  9356/  3796 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [32.4% done] [  3984/  9084 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [36.1% done] [  6932/  5232 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [38.9% done] [  6772/  3360 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [41.7% done] [  2804/  8592 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [43.2% done] [  6026/  4688 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [45.9% done] [  5387/  4942 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [48.6% done] [  3308/  4993 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [50.0% done] [  5530/  2456 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [52.6% done] [  5462/  2945 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [52.5% done] [  2378/  5060 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [53.7% done] [  4426/  3454 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [56.1% done] [  5411/  2374 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [55.8% done] [  4529/  2126 kb/s] [eta 00m:19s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=1090, got signal=6
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=1091, got signal=6
Threads: 1: [m__] [59.5% done] [  4749/  2776 kb/s] [eta 00m:17s]
Threads: 1: [m__] [65.9% done] [  4040/  4367 kb/s] [eta 00m:14s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=1089, got signal=6

fio: (groupid=0): err= 0: pid=1089
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.7%, 2=3.3%, 4=42.0%, 8=54.1%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=1.0%, 4=0.1%, 10=0.2%, 20=4.6%, 50=31.5%, 100=13.3%
     lat (msec): 250=35.4%, 500=12.9%, 750=0.6%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=1090
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.5%, 2=3.1%, 4=36.4%, 8=60.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.3%, 4=0.0%, 10=0.1%, 20=2.7%, 50=15.8%, 100=24.3%
     lat (msec): 250=52.4%, 500=4.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=1091
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.9%, 2=4.3%, 4=38.4%, 8=56.4%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.7%, 4=0.2%, 10=0.3%, 20=4.5%, 50=13.5%, 100=23.2%
     lat (msec): 250=54.2%, 500=2.6%, 750=0.4%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):

Disk stats (read/write):
  sda: ios=3234/2670, merge=356/187, ticks=55680/161036, in_queue=216712, util=99.06%
0.25user 0.37system 0:27.66elapsed 2%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2498minor)pagefaults 0swaps