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] [8.3% done] [  9348/  6672 kb/s] [eta 00m:33s]
Threads: 3: [mmm] [10.8% done] [  9848/  7236 kb/s] [eta 00m:33s]
Threads: 3: [mmm] [13.9% done] [  9908/  5724 kb/s] [eta 00m:31s]
Threads: 3: [mmm] [17.1% done] [  4039/ 10834 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [21.2% done] [  6371/  7323 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [23.5% done] [ 11700/  1004 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [27.3% done] [  9464/  4492 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [29.4% done] [  4688/  7696 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [31.4% done] [  4092/  7976 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [33.3% done] [  9384/  2400 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [35.1% done] [  5508/  7444 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [37.8% done] [  5672/  5444 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [40.5% done] [  9864/  1456 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [42.1% done] [  4120/  5888 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [43.6% done] [  4076/  5068 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [46.2% done] [  5980/  3980 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [47.5% done] [  3892/  5292 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [50.0% done] [  3796/  3856 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [51.2% done] [  3868/  3088 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [52.4% done] [  3996/  3616 kb/s] [eta 00m:20s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=22210, got signal=6
Threads: 2: [m_m] [53.5% done] [  4912/  2700 kb/s] [eta 00m:20s]
Threads: 2: [m_m] [55.8% done] [  4720/  3756 kb/s] [eta 00m:19s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=22211, got signal=6
Threads: 1: [m__] [58.1% done] [  4436/  3304 kb/s] [eta 00m:18s]
Threads: 1: [m__] [63.4% done] [  7796/     0 kb/s] [eta 00m:15s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=22209, got signal=6

fio: (groupid=0): err= 0: pid=22209
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.3%, 2=1.9%, 4=38.4%, 8=59.4%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=1.0%, 20=3.6%, 50=34.8%, 100=10.5%
     lat (msec): 250=35.9%, 500=13.1%, 750=0.9%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=22210
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.4%, 2=2.1%, 4=34.1%, 8=63.5%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=1.0%, 20=2.0%, 50=19.8%, 100=24.4%
     lat (msec): 250=50.4%, 500=2.2%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=22211
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.4%, 2=3.5%, 4=33.7%, 8=62.4%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.9%, 4=0.1%, 10=1.7%, 20=3.4%, 50=14.6%, 100=24.0%
     lat (msec): 250=49.4%, 500=5.0%, 750=0.5%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):

Disk stats (read/write):
  sda: ios=3454/2414, merge=380/337, ticks=59224/71988, in_queue=131212, util=99.02%
0.24user 0.40system 0:27.91elapsed 2%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2483minor)pagefaults 0swaps