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] [6.5% done] [ 10032/  6749 kb/s] [eta 00m:43s]
Threads: 3: [mmm] [9.8% done] [ 10648/  6864 kb/s] [eta 00m:37s]
Threads: 3: [mmm] [12.5% done] [  6352/  9292 kb/s] [eta 00m:35s]
Threads: 3: [mmm] [15.4% done] [ 11348/  1560 kb/s] [eta 00m:33s]
Threads: 3: [mmm] [18.4% done] [ 12940/   812 kb/s] [eta 00m:31s]
Threads: 3: [mmm] [20.5% done] [  9912/  4140 kb/s] [eta 00m:31s]
Threads: 3: [mmm] [23.1% done] [  9536/  1632 kb/s] [eta 00m:30s]
Threads: 3: [mmm] [24.4% done] [  8052/  5540 kb/s] [eta 00m:31s]
Threads: 3: [mmm] [26.2% done] [  7196/  4248 kb/s] [eta 00m:31s]
Threads: 3: [mmm] [30.0% done] [  7404/  5376 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [33.3% done] [  8256/  3196 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [35.0% done] [  6804/  4952 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [36.6% done] [  9964/   680 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [39.0% done] [  7292/  2576 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [41.5% done] [  4784/  5428 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [43.9% done] [  5804/  4560 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [46.3% done] [  4432/  4028 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [50.0% done] [  2396/  7492 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [51.2% done] [  2520/  5768 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [52.4% done] [  3384/  5384 kb/s] [eta 00m:20s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
Threads: 3: [mmm] [53.5% done] [  3056/  4180 kb/s] [eta 00m:20s]
fio: pid=9939, got signal=6
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
Threads: 2: [m_m] [55.8% done] [  5456/  1348 kb/s] [eta 00m:19s]
fio: pid=9940, got signal=6
Threads: 1: [m__] [62.5% done] [     0/ 10012 kb/s] [eta 00m:15s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
Threads: 1: [m__] [66.7% done] [  7352/   140 kb/s] [eta 00m:13s]
fio: pid=9938, got signal=6

fio: (groupid=0): err= 0: pid=9938
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=1.1%, 2=3.7%, 4=40.0%, 8=55.2%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=1.2%, 4=0.0%, 10=1.5%, 20=7.2%, 50=30.9%, 100=12.5%
     lat (msec): 250=32.0%, 500=11.1%, 750=2.4%, 1000=0.6%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=9939
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.9%, 2=3.7%, 4=34.1%, 8=61.2%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=1.0%, 4=0.1%, 10=1.6%, 20=3.4%, 50=15.4%, 100=24.5%
     lat (msec): 250=50.4%, 500=3.2%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=9940
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.3%, 2=1.8%, 4=30.8%, 8=67.1%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.4%, 4=0.1%, 10=0.7%, 20=3.5%, 50=12.6%, 100=25.0%
     lat (msec): 250=51.9%, 500=4.8%, 750=0.5%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):

Disk stats (read/write):
  sda: ios=3203/2540, merge=838/169, ticks=56180/83368, in_queue=139548, util=98.96%
0.26user 0.33system 0:27.10elapsed 2%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2494minor)pagefaults 0swaps