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] [9.7% done] [  6324/  8964 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [13.8% done] [  9312/  6672 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [16.7% done] [  7384/  8632 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [19.4% done] [  8432/  5776 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [21.2% done] [  8252/  7056 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [23.5% done] [  8384/  4908 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [25.7% done] [ 10652/  2380 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [27.8% done] [  9064/  2552 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [29.7% done] [  4592/  7288 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [32.4% done] [  7236/  5560 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [35.1% done] [  8568/  3148 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [37.8% done] [  4312/  7324 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [39.5% done] [  7616/  2980 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [41.0% done] [  6784/  3396 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [42.5% done] [  7108/  3016 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [43.9% done] [  3932/  6132 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [46.3% done] [  5284/  3248 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [47.6% done] [  5736/  2240 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [48.8% done] [  6856/   580 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [51.2% done] [  3644/  4812 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] [52.3% done] [  4552/  3112 kb/s] [eta 00m:21s]
fio: pid=11468, got signal=6
Threads: 2: [m_m] [57.1% done] [  1448/  6936 kb/s] [eta 00m:18s]
Threads: 2: [m_m] [59.5% done] [  6648/   484 kb/s] [eta 00m:17s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
Threads: 2: [m_m] [63.4% done] [   892/  6568 kb/s] [eta 00m:15s]
fio: pid=11469, got signal=6
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=11467, got signal=6

fio: (groupid=0): err= 0: pid=11467
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=1.0%, 2=4.6%, 4=40.7%, 8=53.7%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=1.4%, 4=0.0%, 10=2.0%, 20=6.5%, 50=25.2%, 100=18.3%
     lat (msec): 250=33.4%, 500=11.6%, 750=1.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=11468
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.8%, 2=3.5%, 4=33.5%, 8=62.2%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=1.0%, 4=0.0%, 10=1.3%, 20=2.9%, 50=13.9%, 100=27.5%
     lat (msec): 250=51.2%, 500=1.7%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=11469
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=1.7%, 4=28.5%, 8=69.6%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.2%, 4=0.0%, 10=0.4%, 20=2.3%, 50=8.7%, 100=30.8%
     lat (msec): 250=50.8%, 500=5.9%, 750=0.5%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):

Disk stats (read/write):
  sda: ios=3301/2568, merge=506/279, ticks=60080/91540, in_queue=151616, util=98.95%
0.23user 0.34system 0:27.98elapsed 2%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2487minor)pagefaults 0swaps