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] [  9284/  9064 kb/s] [eta 00m:36s]
Threads: 3: [mmm] [11.8% done] [  9032/  7616 kb/s] [eta 00m:30s]
Threads: 3: [mmm] [13.2% done] [ 11524/  4092 kb/s] [eta 00m:33s]
Threads: 3: [mmm] [16.7% done] [ 11120/  3984 kb/s] [eta 00m:30s]
Threads: 3: [mmm] [19.4% done] [ 10808/  2928 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [21.6% done] [ 12072/     0 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [24.3% done] [ 10276/  4044 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [27.8% done] [  6720/  5912 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [28.9% done] [  9400/  1772 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [30.8% done] [  5232/  7172 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [34.2% done] [  9052/  3871 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [37.8% done] [  5456/  7276 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [39.5% done] [  5876/  5328 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [41.0% done] [  5824/  3680 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [44.7% done] [  4452/  6516 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [46.2% done] [  4100/  5621 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [48.7% done] [  4760/  4800 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [48.8% done] [  2249/  6189 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [50.0% done] [  3511/  3979 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [52.4% done] [  4332/  3531 kb/s] [eta 00m:20s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=15566, got signal=6
Threads: 2: [m_m] [54.8% done] [  3248/  4752 kb/s] [eta 00m:19s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=15567, got signal=6
Threads: 1: [m__] [58.5% done] [  1352/  6232 kb/s] [eta 00m:17s]
Threads: 1: [m__] [64.1% done] [  7340/   952 kb/s] [eta 00m:14s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=15565, got signal=6

fio: (groupid=0): err= 0: pid=15565
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=1.2%, 2=4.4%, 4=38.7%, 8=55.7%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=1.0%, 4=0.2%, 10=1.6%, 20=4.6%, 50=35.0%, 100=13.7%
     lat (msec): 250=28.3%, 500=13.1%, 750=1.9%, 1000=0.2%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=15566
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.4%, 2=2.1%, 4=30.8%, 8=66.7%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.2%, 4=0.1%, 10=1.3%, 20=3.2%, 50=14.6%, 100=25.1%
     lat (msec): 250=52.1%, 500=3.1%, 750=0.1%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=15567
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=2.8%, 4=34.8%, 8=62.1%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.4%, 4=0.0%, 10=1.1%, 20=1.6%, 50=14.3%, 100=24.8%
     lat (msec): 250=52.9%, 500=4.2%, 750=0.2%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):

Disk stats (read/write):
  sda: ios=3141/2493, merge=503/181, ticks=56688/50116, in_queue=106804, util=99.17%
0.21user 0.38system 0:26.82elapsed 2%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2488minor)pagefaults 0swaps