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] [  9608/  8032 kb/s] [eta 00m:32s]
Threads: 3: [mmm] [10.3% done] [  8476/  7892 kb/s] [eta 00m:35s]
Threads: 3: [mmm] [12.2% done] [  4072/ 10936 kb/s] [eta 00m:36s]
Threads: 3: [mmm] [16.7% done] [  9524/  5368 kb/s] [eta 00m:30s]
Threads: 3: [mmm] [18.9% done] [ 12100/  2520 kb/s] [eta 00m:30s]
Threads: 3: [mmm] [20.5% done] [  8528/  4348 kb/s] [eta 00m:31s]
Threads: 3: [mmm] [23.7% done] [  9212/  5008 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [27.0% done] [  7792/  5612 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [28.9% done] [  9736/  2348 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [31.6% done] [  3756/  8628 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [34.2% done] [  4708/  7796 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [35.9% done] [ 10368/   936 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [38.5% done] [  9436/  1764 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [41.0% done] [  1304/  9820 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [42.5% done] [  4740/  4028 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [43.9% done] [  3722/  5256 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [45.2% done] [  2372/  5692 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [45.5% done] [  1236/  7320 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [45.7% done] [  4944/  2208 kb/s] [eta 00m:25s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=5189, got signal=6
Threads: 2: [m_m] [46.8% done] [  5156/  1228 kb/s] [eta 00m:25s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
Threads: 2: [m_m] [48.9% done] [  2420/  5252 kb/s] [eta 00m:24s]
fio: pid=5190, got signal=6
Threads: 1: [m__] [55.8% done] [  4688/  5456 kb/s] [eta 00m:19s]
Threads: 1: [m__] [62.5% done] [   352/ 10624 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] [  7336/    20 kb/s] [eta 00m:13s]
fio: pid=5188, got signal=6

fio: (groupid=0): err= 0: pid=5188
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.4%, 2=2.0%, 4=33.6%, 8=64.1%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.6%, 4=0.3%, 10=2.1%, 20=5.6%, 50=36.0%, 100=11.3%
     lat (msec): 250=27.3%, 500=13.6%, 750=1.6%, 1000=0.4%, >=2000=0.6%
fio: (groupid=0): err= 0: pid=5189
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.8%, 2=3.9%, 4=33.5%, 8=61.8%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=1.7%, 4=0.3%, 10=2.1%, 20=7.0%, 50=20.2%, 100=20.3%
     lat (msec): 250=42.5%, 500=5.5%, 750=0.1%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=5190
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.4%, 2=2.9%, 4=29.9%, 8=66.7%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.8%, 4=0.0%, 10=1.3%, 20=3.3%, 50=18.0%, 100=26.6%
     lat (msec): 250=45.4%, 500=3.9%, 750=0.4%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):

Disk stats (read/write):
  sda: ios=2879/2928, merge=457/65, ticks=51208/34056, in_queue=85264, util=97.71%
0.22user 0.28system 0:27.31elapsed 1%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2500minor)pagefaults 0swaps