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] [7.7% done] [  4754/ 11682 kb/s] [eta 00m:36s]
Threads: 3: [mmm] [10.8% done] [ 12751/  3848 kb/s] [eta 00m:33s]
Threads: 3: [mmm] [15.2% done] [ 10475/  4998 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [17.6% done] [  8548/  6765 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [20.6% done] [  8651/  6773 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [21.6% done] [  9114/  1857 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [23.7% done] [  8594/  3055 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [26.3% done] [  7704/  5367 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [30.6% done] [  9415/  2539 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [34.3% done] [  3957/  9480 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [36.1% done] [  8192/  2242 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [37.8% done] [  9220/  2263 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [40.5% done] [ 10774/     0 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [42.1% done] [  6312/  4112 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [43.6% done] [  5172/  5500 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [46.2% done] [  5577/  4620 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [48.7% done] [  4032/  5088 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [50.0% done] [  4816/  3452 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [51.2% done] [  8252/     0 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [52.4% done] [  4916/  3120 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [54.8% done] [  4756/  3388 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [55.8% done] [  3316/  3660 kb/s] [eta 00m:19s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=5351, got signal=6
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=5350, got signal=6
Threads: 1: [m__] [56.8% done] [  4312/  2308 kb/s] [eta 00m:19s]
Threads: 1: [m__] [61.9% done] [  7652/     0 kb/s] [eta 00m:16s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
Threads: 1: [V__] [67.5% done] [  7488/     0 kb/s] [eta 00m:13s]
fio: pid=5349, got signal=6

fio: (groupid=0): err= 0: pid=5349
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.5%, 2=1.7%, 4=29.4%, 8=68.4%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.4%, 4=0.0%, 10=0.9%, 20=3.5%, 50=31.3%, 100=12.3%
     lat (msec): 250=37.6%, 500=13.2%, 750=0.5%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=5350
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.5%, 2=2.0%, 4=25.6%, 8=71.9%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.2%, 4=0.0%, 10=2.0%, 20=1.8%, 50=11.9%, 100=23.5%
     lat (msec): 250=55.8%, 500=4.8%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=5351
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.4%, 2=2.2%, 4=32.0%, 8=65.4%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.4%, 4=0.0%, 10=1.3%, 20=3.1%, 50=11.9%, 100=27.6%
     lat (msec): 250=49.8%, 500=5.4%, 750=0.1%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):

Disk stats (read/write):
  sda: ios=3731/2004, merge=484/252, ticks=63956/79980, in_queue=143936, util=99.14%
0.18user 0.33system 0:27.81elapsed 1%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2489minor)pagefaults 0swaps