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: [FmF] [23.1% done] [  2209/     0 kb/s] [eta 00m:10s]
Threads: 3: [FmF] [66.7% done] [   219/ 66710 kb/s] [eta 00m:02s]
Threads: 3: [FmF] [71.4% done] [   552/     0 kb/s] [eta 00m:02s]
Threads: 3: [FmF] [66.7% done] [   300/   109 kb/s] [eta 00m:03s]
Threads: 3: [FmF] [70.0% done] [   406/     0 kb/s] [eta 00m:03s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=16223, got signal=6
Threads: 2: [F_F] [100.0% done] [   441/     0 kb/s] [eta 00m:00s]
Threads: 2: [F_F] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [F_F] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [F_F] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [F_F] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [F_F] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [F_F] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [V_V] [68.2% done] [  4766/     0 kb/s] [eta 00m:07s]
Threads: 2: [V_V] [76.2% done] [ 23738/     0 kb/s] [eta 00m:05s]
Threads: 2: [V_V] [85.0% done] [ 32251/     0 kb/s] [eta 00m:03s]
Threads: 2: [V_V] [100.0% done] [ 38615/     0 kb/s] [eta 00m:00s]
Threads: 2: [V_V] [100.0% done] [ 38387/     0 kb/s] [eta 00m:00s]
Threads: 2: [V_V] [100.0% done] [ 34954/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=16222
  read : io=100MiB, bw=4,944KiB/s, runt= 21205msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  383, avg=32.04, stdev=61.18
    bw (KiB/s) : min=    6, max=24226, per=127.97%, avg=13303.64, stdev=8258.25
  write: io=98MiB, bw=7,007KiB/s, runt= 14716msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  155, avg= 0.66, stdev= 6.49
    bw (KiB/s) : min=    0, max=56775, per=140.30%, avg=28387.50, stdev=40145.99
  cpu          : usr=3.89%, sys=1.85%, ctx=7230
  IO depths    : 1=1.1%, 2=53.8%, 4=32.6%, 8=12.5%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=49.4%, 4=2.7%, 10=19.2%, 20=16.8%, 50=4.0%, 100=1.7%
     lat (msec): 250=4.9%, 500=1.1%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=16223
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=87.6%, 4=3.7%, 8=8.4%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=83.4%, 4=5.0%, 10=0.7%, 20=0.3%, 50=0.2%, 100=0.8%
     lat (msec): 250=3.1%, 500=4.2%, 750=1.4%, 1000=0.2%, >=2000=0.1%
fio: (groupid=0): err= 0: pid=16224
  read : io=100MiB, bw=4,971KiB/s, runt= 21090msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  370, avg=32.62, stdev=54.38
    bw (KiB/s) : min=    2, max=25248, per=134.68%, avg=14000.85, stdev=7460.91
  write: io=98,404KiB, bw=6,845KiB/s, runt= 14720msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  235, avg= 0.92, stdev= 9.92
    bw (KiB/s) : min=    0, max=126492, per=312.57%, avg=63246.00, stdev=89443.35
  cpu          : usr=4.32%, sys=1.97%, ctx=7203
  IO depths    : 1=0.7%, 2=53.2%, 4=32.0%, 8=14.1%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=47.9%, 4=3.1%, 10=13.7%, 20=22.3%, 50=4.7%, 100=2.1%
     lat (msec): 250=5.3%, 500=0.7%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=210MiB, aggrb=10,396KiB/s, minb=0KiB/s, maxb=4,971KiB/s, mint=21090msec, maxt=21205msec
  WRITE: io=284MiB, aggrb=20,234KiB/s, minb=0KiB/s, maxb=7,007KiB/s, mint=21090msec, maxt=21205msec

Disk stats (read/write):
  sda: ios=2228/2658, merge=1466/69807, ticks=44444/2062328, in_queue=2109208, util=99.01%
2.66user 1.12system 0:21.46elapsed 17%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2481minor)pagefaults 0swaps