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] [10.0% done] [ 10041/  5649 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [11.1% done] [ 14000/  2156 kb/s] [eta 00m:32s]
Threads: 3: [mmm] [13.9% done] [  8012/  7524 kb/s] [eta 00m:31s]
Threads: 3: [mmm] [17.1% done] [ 13160/   216 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [20.0% done] [  8724/  6456 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [21.1% done] [  9628/  3464 kb/s] [eta 00m:30s]
Threads: 3: [mmm] [24.3% done] [  9748/  3220 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [26.3% done] [  9480/  2492 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [28.2% done] [  8296/  5288 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [30.8% done] [ 10820/   680 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [33.3% done] [  5288/  7792 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [35.9% done] [  3544/  8664 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [37.5% done] [  7356/  4028 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [39.0% done] [  5716/  5428 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [41.5% done] [  4784/  4776 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [42.9% done] [  6568/  1988 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [45.2% done] [  4652/  3648 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [47.6% done] [  7656/   492 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [48.8% done] [  3964/  3892 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [50.0% done] [  3216/  4172 kb/s] [eta 00m:22s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=14397, got signal=6
Threads: 2: [m_m] [52.3% done] [  6189/  1194 kb/s] [eta 00m:21s]
Threads: 2: [m_m] [55.8% done] [  3013/  4532 kb/s] [eta 00m:19s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=14398, got signal=6
Threads: 1: [m__] [59.5% done] [  4828/  2944 kb/s] [eta 00m:17s]
Threads: 1: [m__] [65.0% done] [  8596/   156 kb/s] [eta 00m:14s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=14396, got signal=6

fio: (groupid=0): err= 0: pid=14396
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.4%, 2=1.6%, 4=35.1%, 8=63.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.3%, 10=1.1%, 20=4.1%, 50=28.7%, 100=14.1%
     lat (msec): 250=35.8%, 500=12.9%, 750=2.0%, 1000=0.4%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=14397
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.4%, 2=2.2%, 4=30.6%, 8=66.8%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.3%, 4=0.0%, 10=0.9%, 20=2.3%, 50=17.9%, 100=21.6%
     lat (msec): 250=54.4%, 500=2.2%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=14398
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.4%, 2=2.3%, 4=27.4%, 8=69.9%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.5%, 4=0.1%, 10=0.7%, 20=1.6%, 50=12.6%, 100=21.5%
     lat (msec): 250=58.1%, 500=4.7%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):

Disk stats (read/write):
  sda: ios=3675/1947, merge=592/212, ticks=59908/33248, in_queue=93156, util=99.25%
0.22user 0.25system 0:27.55elapsed 1%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2478minor)pagefaults 0swaps