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] [8.6% done] [  7432/  8448 kb/s] [eta 00m:32s]
Threads: 3: [mmm] [11.8% done] [ 14068/  1740 kb/s] [eta 00m:30s]
Threads: 3: [mmm] [14.7% done] [  7596/  8732 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [17.1% done] [  9904/  5128 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [19.4% done] [  7868/  5664 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [21.1% done] [ 13048/     0 kb/s] [eta 00m:30s]
Threads: 3: [mmm] [23.7% done] [  9388/  1972 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [27.0% done] [  8708/  4972 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [29.7% done] [  6866/  5709 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [31.6% done] [ 10544/  1068 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [36.1% done] [  8428/  3604 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [38.9% done] [ 10340/  1348 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [41.7% done] [  8448/  1996 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [43.2% done] [  3180/  9176 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [44.7% done] [  5840/  3992 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [47.4% done] [  6876/  2860 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [48.7% done] [  5552/  2568 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [50.0% done] [  5360/  2784 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [51.2% done] [  5296/  2544 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [52.4% done] [   500/  8216 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [53.5% done] [  2668/  5576 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [55.8% done] [  3456/  3264 kb/s] [eta 00m:19s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=19014, got signal=6
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=19015, got signal=6
Threads: 1: [m__] [58.1% done] [  5276/  1672 kb/s] [eta 00m:18s]
Threads: 1: [m__] [63.4% done] [  1684/  7168 kb/s] [eta 00m:15s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=19013, got signal=6

fio: (groupid=0): err= 0: pid=19013
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=1.2%, 2=5.1%, 4=39.3%, 8=54.4%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=2.2%, 4=0.0%, 10=3.0%, 20=6.0%, 50=27.1%, 100=11.5%
     lat (msec): 250=34.1%, 500=14.3%, 750=1.3%, 1000=0.1%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=19014
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.5%, 2=2.0%, 4=25.1%, 8=72.3%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.5%, 4=0.0%, 10=0.7%, 20=2.2%, 50=10.9%, 100=24.4%
     lat (msec): 250=58.9%, 500=2.3%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=19015
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.8%, 2=3.2%, 4=35.5%, 8=60.5%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.4%, 4=0.2%, 10=2.1%, 20=3.1%, 50=15.6%, 100=26.5%
     lat (msec): 250=46.0%, 500=5.1%, 750=0.8%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):

Disk stats (read/write):
  sda: ios=3195/2612, merge=480/149, ticks=57660/48388, in_queue=106048, util=98.20%
0.26user 0.42system 0:27.99elapsed 2%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2502minor)pagefaults 0swaps