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] [5.0% done] [  5036/  4772 kb/s] [eta 00m:57s]
Threads: 3: [mmm] [6.7% done] [   976/ 13116 kb/s] [eta 00m:56s]
Threads: 3: [mmm] [8.3% done] [  6128/  6156 kb/s] [eta 00m:55s]
Threads: 3: [mmm] [10.0% done] [  7120/  7512 kb/s] [eta 00m:54s]
Threads: 3: [mmm] [11.7% done] [  8568/  4996 kb/s] [eta 00m:53s]
Threads: 3: [mmm] [13.3% done] [  8652/  2172 kb/s] [eta 00m:52s]
Threads: 3: [mmm] [15.0% done] [ 10172/     0 kb/s] [eta 00m:51s]
Threads: 3: [mmm] [16.7% done] [ 11628/     0 kb/s] [eta 00m:50s]
Threads: 3: [mmm] [18.3% done] [  8180/  2936 kb/s] [eta 00m:49s]
Threads: 3: [mmm] [20.0% done] [  9884/     0 kb/s] [eta 00m:48s]
Threads: 3: [mmm] [21.7% done] [  7008/  2984 kb/s] [eta 00m:47s]
Threads: 3: [mmm] [23.3% done] [  5372/  6632 kb/s] [eta 00m:46s]
Threads: 3: [mmm] [25.0% done] [  3472/  9000 kb/s] [eta 00m:45s]
Threads: 3: [mmm] [26.7% done] [ 10400/  2812 kb/s] [eta 00m:44s]
Threads: 3: [mmm] [28.3% done] [  5580/  5796 kb/s] [eta 00m:43s]
Threads: 3: [mmm] [30.0% done] [  4168/  7708 kb/s] [eta 00m:42s]
Threads: 3: [mmm] [31.7% done] [  8024/  2760 kb/s] [eta 00m:41s]
Threads: 3: [mmm] [33.3% done] [  7852/   408 kb/s] [eta 00m:40s]
Threads: 3: [mmm] [35.0% done] [  7936/  1444 kb/s] [eta 00m:39s]
Threads: 3: [mmm] [36.7% done] [  5928/  3244 kb/s] [eta 00m:38s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
Threads: 3: [mmm] [38.3% done] [  3748/  5156 kb/s] [eta 00m:37s]
fio: pid=2226, got signal=6
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=2227, got signal=6
Threads: 1: [m__] [40.0% done] [  5920/  3908 kb/s] [eta 00m:36s]
Threads: 1: [m__] [42.4% done] [   204/ 12380 kb/s] [eta 00m:34s]
Threads: 1: [m__] [48.1% done] [  9620/     0 kb/s] [eta 00m:28s]
Threads: 1: [m__] [55.1% done] [  4404/  5060 kb/s] [eta 00m:22s]
Threads: 1: [m__] [60.9% done] [  8324/   828 kb/s] [eta 00m:18s]
Threads: 1: [m__] [65.9% done] [  3504/  5008 kb/s] [eta 00m:15s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=2225, got signal=6

fio: (groupid=0): err= 0: pid=2225
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=1.0%, 2=4.0%, 4=44.8%, 8=50.1%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=1.4%, 4=0.4%, 10=4.4%, 20=4.8%, 50=50.2%, 100=16.1%
     lat (msec): 250=15.6%, 500=5.9%, 750=0.4%, 1000=0.1%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=2226
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.4%, 2=2.1%, 4=32.0%, 8=65.5%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.1%, 4=0.1%, 10=1.5%, 20=1.6%, 50=16.2%, 100=30.9%
     lat (msec): 250=45.9%, 500=2.6%, 750=0.2%, 1000=0.1%, >=2000=0.2%
fio: (groupid=0): err= 0: pid=2227
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.5%, 2=2.3%, 4=25.0%, 8=72.2%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.6%, 4=0.3%, 10=0.4%, 20=0.6%, 50=9.4%, 100=33.0%
     lat (msec): 250=52.2%, 500=2.0%, 750=0.7%, 1000=0.4%, >=2000=0.2%

Run status group 0 (all jobs):

Disk stats (read/write):
  sda: ios=3518/3082, merge=507/6013, ticks=52292/1090044, in_queue=1098492, util=99.47%
0.23user 0.42system 0:30.35elapsed 2%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2502minor)pagefaults 0swaps