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] [  9108/  7434 kb/s] [eta 00m:30s]
Threads: 3: [mmm] [12.1% done] [ 10412/  5400 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [14.7% done] [ 10045/  4876 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [17.6% done] [  7584/  5140 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [20.0% done] [  7224/  5476 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [22.9% done] [  8380/  5632 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [24.3% done] [  9644/  2340 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [27.0% done] [  9625/  4332 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [28.9% done] [  5140/  8668 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [30.8% done] [  5560/  7144 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [34.2% done] [  9080/  4612 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [35.9% done] [  7916/  2788 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [38.5% done] [  4800/  6456 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [40.0% done] [  9464/     0 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [42.5% done] [  7500/  1728 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [45.0% done] [  4824/  4804 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [47.5% done] [  5728/  3340 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [48.8% done] [  6456/  2820 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [50.0% done] [  5888/  1944 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [52.4% done] [  3363/  5545 kb/s] [eta 00m:20s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
Threads: 3: [mmm] [53.5% done] [  3070/  4272 kb/s] [eta 00m:20s]
fio: pid=13743, got signal=6
Threads: 2: [m_m] [58.5% done] [  1672/  7196 kb/s] [eta 00m:17s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=13744, got signal=6
Threads: 1: [m__] [62.5% done] [  4636/  2772 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] [  8184/   224 kb/s] [eta 00m:13s]
fio: pid=13742, got signal=6

fio: (groupid=0): err= 0: pid=13742
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.8%, 2=3.4%, 4=36.4%, 8=59.4%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.8%, 4=0.0%, 10=1.4%, 20=4.7%, 50=27.5%, 100=16.2%
     lat (msec): 250=33.9%, 500=13.7%, 750=1.0%, 1000=0.2%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=13743
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.5%, 2=2.5%, 4=32.0%, 8=65.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.8%, 4=0.1%, 10=1.2%, 20=2.0%, 50=12.4%, 100=25.3%
     lat (msec): 250=54.6%, 500=3.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=13744
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=2.1%, 4=29.7%, 8=67.9%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.3%, 4=0.0%, 10=0.6%, 20=1.5%, 50=10.0%, 100=22.5%
     lat (msec): 250=60.9%, 500=3.7%, 750=0.2%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):

Disk stats (read/write):
  sda: ios=3342/2201, merge=556/257, ticks=57688/99476, in_queue=157164, util=98.11%
0.26user 0.38system 0:27.37elapsed 2%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2478minor)pagefaults 0swaps