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] [9.1% done] [ 12696/  1624 kb/s] [eta 00m:30s]
Threads: 3: [mmm] [12.1% done] [  4872/  8060 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [14.7% done] [ 11068/  1768 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [18.2% done] [  7636/  6300 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [20.6% done] [  4884/  7812 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [23.5% done] [  9052/  2856 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [25.7% done] [  8564/  2028 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [27.8% done] [  4872/  5960 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [29.7% done] [  6560/  2260 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [32.4% done] [  9544/  1120 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [35.1% done] [  8496/  2216 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [36.8% done] [  6584/  2224 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [38.5% done] [  5148/  3692 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [40.0% done] [  6664/  3148 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [41.5% done] [  5440/  2088 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [43.9% done] [  7336/  2580 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [45.2% done] [  4204/  3072 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [47.6% done] [  5032/  3260 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [48.8% done] [  2980/  5068 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [51.2% done] [  2508/  4932 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [52.3% done] [  2732/  4772 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [53.3% done] [  2324/  3508 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [54.3% done] [  5212/  1260 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [56.5% done] [  3484/  2972 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [57.4% done] [  3596/  4600 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [57.1% done] [  3728/  3356 kb/s] [eta 00m:21s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=13568, got signal=6
Threads: 2: [m_m] [58.0% done] [  2296/  3788 kb/s] [eta 00m:21s]
Threads: 2: [m_m] [58.8% done] [  5064/  1132 kb/s] [eta 00m:21s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=13567, got signal=6
Threads: 1: [__m] [59.6% done] [  5628/  1504 kb/s] [eta 00m:21s]
Threads: 1: [__m] [65.3% done] [   980/  6608 kb/s] [eta 00m:17s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=13569, got signal=6

fio: (groupid=0): err= 0: pid=13567
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.3%, 2=0.9%, 4=18.8%, 8=80.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.2%, 4=0.0%, 10=0.6%, 20=2.2%, 50=20.8%, 100=7.7%
     lat (msec): 250=62.7%, 500=4.4%, 750=0.4%, 1000=0.6%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=13568
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.4%, 2=1.4%, 4=17.7%, 8=80.5%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.8%, 4=0.0%, 10=1.5%, 20=2.3%, 50=17.6%, 100=5.2%
     lat (msec): 250=66.6%, 500=5.5%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=13569
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.4%, 2=1.9%, 4=18.2%, 8=79.5%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.5%, 4=0.0%, 10=0.8%, 20=4.4%, 50=18.8%, 100=3.4%
     lat (msec): 250=63.2%, 500=7.3%, 750=0.8%, 1000=0.5%, >=2000=0.0%

Run status group 0 (all jobs):

Disk stats (read/write):
  sda: ios=3241/2264, merge=669/383, ticks=72624/37040, in_queue=109664, util=98.94%
0.12user 0.35system 0:33.81elapsed 1%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2514minor)pagefaults 0swaps