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: [mmF] [5.0% done] [  3236/ 11480 kb/s] [eta 00m:57s]
Threads: 3: [mmF] [13.3% done] [  2020/ 40147 kb/s] [eta 00m:26s]
Threads: 3: [mmF] [13.9% done] [  2076/     0 kb/s] [eta 00m:31s]
Threads: 3: [mmF] [46.2% done] [  1492/ 92820 kb/s] [eta 00m:07s]
Threads: 3: [mFF] [46.7% done] [   960/  6204 kb/s] [eta 00m:08s]
Threads: 3: [FFF] [100.0% done] [   276/ 32740 kb/s] [eta 00m:00s]
Threads: 3: [FFF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 3: [FFF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 3: [FFF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 3: [FFF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 3: [FFF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 3: [FFF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 3: [FFV] [68.2% done] [     0/     0 kb/s] [eta 00m:07s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=13161, got signal=6
Threads: 2: [V_V] [69.6% done] [ 18892/     0 kb/s] [eta 00m:07s]
Threads: 2: [V_V] [70.8% done] [ 32424/     0 kb/s] [eta 00m:07s]
Threads: 2: [V_V] [78.3% done] [ 31116/     0 kb/s] [eta 00m:05s]
Threads: 2: [V_V] [86.4% done] [ 34584/     0 kb/s] [eta 00m:03s]
Threads: 1: [V__] [100.0% done] [ 32756/     0 kb/s] [eta 00m:00s]
Threads: 1: [V__] [100.0% done] [ 34904/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=13160
  read : io=100MiB, bw=4,804KiB/s, runt= 21826msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  902, avg=57.51, stdev=138.37
    bw (KiB/s) : min=    0, max=36864, per=70.75%, avg=7112.28, stdev=10271.06
  write: io=90,620KiB, bw=6,022KiB/s, runt= 15408msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  671, avg= 3.78, stdev=36.17
    bw (KiB/s) : min=    0, max=24333, per=49.58%, avg=9421.67, stdev=13062.39
  cpu          : usr=3.30%, sys=1.61%, ctx=5310
  IO depths    : 1=2.1%, 2=55.6%, 4=29.5%, 8=12.8%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=50.1%, 4=0.1%, 10=22.0%, 20=14.0%, 50=4.7%, 100=0.7%
     lat (msec): 250=4.6%, 500=1.7%, 750=1.6%, 1000=0.4%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=13161
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.6%, 2=92.3%, 4=2.0%, 8=5.1%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=92.9%, 4=0.3%, 10=0.3%, 20=0.2%, 50=0.1%, 100=0.3%
     lat (msec): 250=1.6%, 500=1.2%, 750=1.9%, 1000=0.7%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=13162
  read : io=100MiB, bw=5,135KiB/s, runt= 20417msec
    clat (msec): min=    0, max=  357, avg=21.79, stdev=38.43
    bw (KiB/s) : min=    7, max=34930, per=191.27%, avg=19226.10, stdev=10833.10
  write: io=100MiB, bw=6,812KiB/s, runt= 15392msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=    7, avg= 0.18, stdev= 0.50
    bw (KiB/s) : min=    0, max=131137, per=345.04%, avg=65568.50, stdev=92727.86
  cpu          : usr=3.94%, sys=1.65%, ctx=5061
  IO depths    : 1=1.5%, 2=57.9%, 4=30.8%, 8=9.8%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=51.2%, 4=0.2%, 10=22.7%, 20=15.1%, 50=6.5%, 100=0.9%
     lat (msec): 250=3.3%, 500=0.1%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=209MiB, aggrb=10,052KiB/s, minb=0KiB/s, maxb=5,135KiB/s, mint=20417msec, maxt=21826msec
  WRITE: io=279MiB, aggrb=19,003KiB/s, minb=0KiB/s, maxb=6,812KiB/s, mint=20417msec, maxt=21826msec

Disk stats (read/write):
  sda: ios=2242/2021, merge=767/69132, ticks=49196/2066660, in_queue=2133568, util=98.33%
2.30user 1.02system 0:22.18elapsed 15%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2484minor)pagefaults 0swaps