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] [8.1% done] [  9090/  7159 kb/s] [eta 00m:34s]
Threads: 3: [mmm] [10.0% done] [ 12901/  4230 kb/s] [eta 00m:36s]
Threads: 3: [mmm] [12.2% done] [  5465/  7655 kb/s] [eta 00m:36s]
Threads: 3: [mmm] [17.1% done] [  6473/ 10085 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [19.4% done] [  9293/  4677 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [22.2% done] [ 10869/  3506 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [26.5% done] [  5705/  7740 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [28.6% done] [  4071/  9248 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [31.4% done] [  5245/  6440 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [34.3% done] [  9774/  1810 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [36.1% done] [  8611/  3237 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [36.8% done] [  4476/  6508 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [39.5% done] [  9672/   752 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [43.2% done] [  6112/  4592 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [45.9% done] [  5752/  4548 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [47.4% done] [  4032/  5600 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [48.7% done] [  4388/  4644 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [50.0% done] [  4404/  4120 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [52.5% done] [  6096/  1604 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [53.7% done] [  4440/  3228 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [54.8% done] [  3932/  4468 kb/s] [eta 00m:19s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=26391, got signal=6
Threads: 2: [m_m] [55.8% done] [  2704/  3676 kb/s] [eta 00m:19s]
Threads: 2: [m_m] [58.1% done] [  6176/    48 kb/s] [eta 00m:18s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=26392, got signal=6
Threads: 1: [m__] [63.4% done] [    68/  8844 kb/s] [eta 00m:15s]
Threads: 1: [m__] [67.5% done] [  2584/  3968 kb/s] [eta 00m:13s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=26390, got signal=6

fio: (groupid=0): err= 0: pid=26390
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.5%, 2=3.8%, 4=34.7%, 8=60.9%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.5%, 4=0.1%, 10=2.8%, 20=6.1%, 50=25.7%, 100=16.2%
     lat (msec): 250=35.1%, 500=12.1%, 750=1.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=26391
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.7%, 2=2.9%, 4=27.2%, 8=69.3%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=1.0%, 4=0.0%, 10=1.4%, 20=3.5%, 50=11.7%, 100=26.7%
     lat (msec): 250=51.7%, 500=3.6%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=26392
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.6%, 2=3.1%, 4=35.4%, 8=60.9%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.4%, 4=0.2%, 10=0.9%, 20=2.5%, 50=13.6%, 100=31.3%
     lat (msec): 250=45.7%, 500=3.3%, 750=1.2%, 1000=0.4%, >=2000=0.0%

Run status group 0 (all jobs):

Disk stats (read/write):
  sda: ios=3086/2826, merge=420/201, ticks=56488/49012, in_queue=105496, util=99.13%
0.26user 0.42system 0:27.88elapsed 2%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2504minor)pagefaults 0swaps