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] [9.1% done] [  6152/  7768 kb/s] [eta 00m:30s]
Threads: 3: [mmm] [11.8% done] [  9848/  2384 kb/s] [eta 00m:30s]
Threads: 3: [mmm] [14.7% done] [ 12380/     0 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [17.1% done] [  8700/  4108 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [19.4% done] [ 11056/   332 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [22.2% done] [  5952/  6352 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [25.0% done] [ 10120/  1612 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [27.0% done] [ 10940/     0 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [29.7% done] [  4692/  6132 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [31.6% done] [  7636/  1760 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [33.3% done] [  6700/  2872 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [35.0% done] [  4624/  6196 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [37.5% done] [  4536/  4984 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [39.0% done] [  6528/  2192 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [40.5% done] [  5412/  3004 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [42.9% done] [  7672/   496 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [45.2% done] [  1037/  8996 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [46.5% done] [  5908/  1676 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [48.8% done] [  2904/  4928 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [50.0% done] [  5324/  1744 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [52.3% done] [  4660/  2336 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [53.3% done] [  4452/  1456 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [55.6% done] [  3488/  3228 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [56.5% done] [  6296/  1540 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [57.4% done] [  3188/  3976 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [58.3% done] [  3668/  3440 kb/s] [eta 00m:20s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=1684, got signal=6
Threads: 2: [_mm] [59.2% done] [  3832/  3028 kb/s] [eta 00m:20s]
Threads: 2: [_mm] [58.8% done] [  2976/  5352 kb/s] [eta 00m:21s]
Threads: 2: [_Vm] [59.6% done] [  8916/  2436 kb/s] [eta 00m:21s]
Threads: 2: [_Vm] [60.4% done] [ 14904/   608 kb/s] [eta 00m:21s]
Threads: 2: [_Vm] [60.7% done] [ 16624/   260 kb/s] [eta 00m:22s]
Threads: 1: [__m] [63.6% done] [  8371/  5542 kb/s] [eta 00m:20s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=1686, got signal=6

fio: (groupid=0): err= 0: pid=1684
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.5%, 2=2.0%, 4=20.5%, 8=77.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=1.2%, 4=0.0%, 10=1.9%, 20=1.8%, 50=20.4%, 100=8.1%
     lat (msec): 250=62.0%, 500=4.4%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=1685
  read : io=100MiB, bw=3,053KiB/s, runt= 34333msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  447, avg=98.00, stdev=90.86
    bw (KiB/s) : min=   26, max=20260, per=54.39%, avg=3711.81, stdev=4831.21
  write: io=47,968KiB, bw=1,577KiB/s, runt= 31133msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  511, avg=127.32, stdev=93.84
    bw (KiB/s) : min=    0, max= 8610, per=48.96%, avg=2033.34, stdev=1950.35
  cpu          : usr=0.08%, sys=0.20%, ctx=6848
  IO depths    : 1=0.8%, 2=3.4%, 4=31.4%, 8=64.5%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.8%, 4=0.0%, 10=5.4%, 20=11.0%, 50=29.4%, 100=5.0%
     lat (msec): 250=43.2%, 500=4.9%, 750=0.1%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=1686
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.7%, 2=3.0%, 4=17.5%, 8=78.7%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=1.2%, 4=0.0%, 10=2.5%, 20=4.1%, 50=13.3%, 100=3.9%
     lat (msec): 250=62.0%, 500=9.3%, 750=2.5%, 1000=0.7%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=223MiB, aggrb=6,824KiB/s, minb=0KiB/s, maxb=3,053KiB/s, mint=0msec, maxt=34333msec
  WRITE: io=123MiB, aggrb=4,153KiB/s, minb=0KiB/s, maxb=1,577KiB/s, mint=0msec, maxt=34333msec

Disk stats (read/write):
  sda: ios=3947/2588, merge=589/366, ticks=76852/46176, in_queue=123028, util=99.21%
0.14user 0.23system 0:36.05elapsed 1%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2514minor)pagefaults 0swaps