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] [8.3% done] [  7813/ 10062 kb/s] [eta 00m:33s]
Threads: 3: [mmm] [11.1% done] [  9282/  6581 kb/s] [eta 00m:32s]
Threads: 3: [mmm] [14.3% done] [ 11917/  2851 kb/s] [eta 00m:30s]
Threads: 3: [mmm] [16.2% done] [  9046/  5427 kb/s] [eta 00m:31s]
Threads: 3: [mmm] [18.4% done] [  9621/  4166 kb/s] [eta 00m:31s]
Threads: 3: [mmm] [20.5% done] [  5021/  8010 kb/s] [eta 00m:31s]
Threads: 3: [mmm] [23.7% done] [ 10716/  1914 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [26.3% done] [  7286/  5537 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [28.9% done] [  9440/  2619 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [30.8% done] [  7652/  4564 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [32.5% done] [  9019/  1677 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [35.0% done] [  7518/  3430 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [36.6% done] [  6604/  4131 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [39.0% done] [  5848/  4178 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [41.5% done] [  5927/  3780 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [42.9% done] [  5828/  3465 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [45.2% done] [  5746/  3371 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [47.6% done] [  6029/  3154 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [50.0% done] [  4564/  3446 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [50.0% done] [  3220/  3603 kb/s] [eta 00m:23s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=24042, got signal=6
Threads: 2: [m_m] [53.3% done] [  3016/  5312 kb/s] [eta 00m:21s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
Threads: 2: [m_m] [55.6% done] [  4324/  3221 kb/s] [eta 00m:20s]
fio: pid=24043, got signal=6
Threads: 1: [m__] [60.5% done] [  8640/     0 kb/s] [eta 00m:17s]
Threads: 1: [m__] [65.9% done] [  7467/     0 kb/s] [eta 00m:14s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=24041, got signal=6

fio: (groupid=0): err= 0: pid=24041
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.4%, 2=2.2%, 4=39.2%, 8=58.1%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.1%, 4=0.0%, 10=0.0%, 20=2.7%, 50=35.8%, 100=11.7%
     lat (msec): 250=32.8%, 500=14.9%, 750=1.3%, 1000=0.2%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=24042
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.6%, 2=3.2%, 4=34.0%, 8=62.2%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.7%, 4=0.1%, 10=0.9%, 20=4.4%, 50=12.1%, 100=30.2%
     lat (msec): 250=47.6%, 500=3.9%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=24043
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.4%, 2=2.7%, 4=33.5%, 8=63.4%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.5%, 4=0.1%, 10=0.3%, 20=2.8%, 50=9.7%, 100=31.4%
     lat (msec): 250=48.5%, 500=5.8%, 750=0.3%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):

Disk stats (read/write):
  sda: ios=3730/1975, merge=581/218, ticks=62980/219168, in_queue=282148, util=99.16%
0.21user 0.42system 0:27.75elapsed 2%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2486minor)pagefaults 0swaps