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] [7.0% done] [ 11888/  6092 kb/s] [eta 00m:40s]
Threads: 3: [mmm] [11.1% done] [ 11008/  5760 kb/s] [eta 00m:32s]
Threads: 3: [mmm] [13.5% done] [ 11724/  2304 kb/s] [eta 00m:32s]
Threads: 3: [mmm] [15.4% done] [  8664/  3636 kb/s] [eta 00m:33s]
Threads: 3: [mmm] [17.9% done] [ 10736/  2288 kb/s] [eta 00m:32s]
Threads: 3: [mmm] [20.5% done] [ 11964/  2256 kb/s] [eta 00m:31s]
Threads: 3: [mmm] [22.5% done] [  7900/  5252 kb/s] [eta 00m:31s]
Threads: 3: [mmm] [25.6% done] [  5745/  7471 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [28.2% done] [  9188/  4160 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [30.0% done] [  6896/  4116 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [31.7% done] [  4488/  7660 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [35.0% done] [  7515/  4744 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [37.5% done] [ 10524/     0 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [39.0% done] [  6329/  4515 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [40.5% done] [  3238/  6268 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [42.9% done] [  3828/  6316 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [43.2% done] [  4028/  4604 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [45.5% done] [  4860/  3952 kb/s] [eta 00m:24s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=6749, got signal=6
Threads: 2: [mm_] [45.7% done] [  4560/  2712 kb/s] [eta 00m:25s]
Threads: 2: [mm_] [45.8% done] [  4328/  2116 kb/s] [eta 00m:26s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=6748, got signal=6
Threads: 1: [m__] [50.0% done] [  7228/  2392 kb/s] [eta 00m:23s]
Threads: 1: [m__] [55.8% done] [  9208/     0 kb/s] [eta 00m:19s]
Threads: 1: [m__] [62.5% done] [  7760/   772 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] [     0/  8512 kb/s] [eta 00m:13s]
fio: pid=6747, got signal=6

fio: (groupid=0): err= 0: pid=6747
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.5%, 2=2.4%, 4=37.3%, 8=59.8%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.3%, 4=0.1%, 10=3.1%, 20=3.8%, 50=42.5%, 100=10.0%
     lat (msec): 250=21.5%, 500=14.4%, 750=2.9%, 1000=1.2%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=6748
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.7%, 2=3.4%, 4=34.3%, 8=61.6%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.8%, 4=0.2%, 10=2.1%, 20=3.9%, 50=23.6%, 100=19.5%
     lat (msec): 250=43.9%, 500=4.9%, 750=0.5%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=6749
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.8%, 2=3.3%, 4=34.3%, 8=61.6%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.8%, 4=0.1%, 10=1.1%, 20=2.4%, 50=21.6%, 100=25.8%
     lat (msec): 250=45.0%, 500=3.0%, 750=0.1%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):

Disk stats (read/write):
  sda: ios=3291/2419, merge=593/38, ticks=53748/33220, in_queue=86964, util=97.63%
0.24user 0.22system 0:27.48elapsed 1%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2492minor)pagefaults 0swaps