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
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=32166, got signal=6
Threads: 2: [F_F] [100.0% done] [   448/ 65940 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: [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] [69.6% done] [ 14488/     0 kb/s] [eta 00m:07s]
Threads: 2: [V_V] [81.0% done] [ 34172/     0 kb/s] [eta 00m:04s]
Threads: 2: [V_V] [90.0% done] [ 33740/     0 kb/s] [eta 00m:02s]
Threads: 2: [V_V] [100.0% done] [ 38160/     0 kb/s] [eta 00m:00s]
Threads: 2: [V_V] [100.0% done] [ 37248/     0 kb/s] [eta 00m:00s]
Threads: 1: [__V] [100.0% done] [ 33424/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=32165
  read : io=100MiB, bw=4,917KiB/s, runt= 21321msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  293, avg=29.54, stdev=46.29
    bw (KiB/s) : min=    0, max=26729, per=154.12%, avg=15228.92, stdev=7208.47
  write: io=97,984KiB, bw=6,476KiB/s, runt= 15492msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  128, avg= 0.70, stdev= 5.66
    bw (KiB/s) : min=    0, max=104079, per=265.17%, avg=52039.50, stdev=73594.97
  cpu          : usr=3.86%, sys=1.95%, ctx=4828
  IO depths    : 1=1.7%, 2=56.3%, 4=31.4%, 8=10.7%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=48.5%, 4=1.6%, 10=21.1%, 20=13.7%, 50=7.2%, 100=1.3%
     lat (msec): 250=6.1%, 500=0.2%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=32166
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.3%, 2=92.4%, 4=4.0%, 8=3.2%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=90.1%, 4=4.1%, 10=0.6%, 20=0.9%, 50=0.2%, 100=0.5%
     lat (msec): 250=1.8%, 500=1.1%, 750=0.5%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=32167
  read : io=100MiB, bw=4,804KiB/s, runt= 21825msec
    clat (msec): min=    0, max=  423, avg=27.78, stdev=51.71
    bw (KiB/s) : min=    9, max=29907, per=154.05%, avg=15221.67, stdev=9455.16
  write: io=100MiB, bw=6,770KiB/s, runt= 15488msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=    8, avg= 0.25, stdev= 0.80
    bw (KiB/s) : min=    0, max=128819, per=328.20%, avg=64409.50, stdev=91088.79
  cpu          : usr=3.83%, sys=1.74%, ctx=4989
  IO depths    : 1=1.5%, 2=56.4%, 4=32.3%, 8=9.8%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=51.4%, 4=0.2%, 10=22.6%, 20=15.1%, 50=4.2%, 100=0.6%
     lat (msec): 250=4.9%, 500=0.7%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=206MiB, aggrb=9,881KiB/s, minb=0KiB/s, maxb=4,917KiB/s, mint=21825msec, maxt=21825msec
  WRITE: io=290MiB, aggrb=19,625KiB/s, minb=0KiB/s, maxb=6,770KiB/s, mint=21825msec, maxt=21825msec

Disk stats (read/write):
  sda: ios=2040/3257, merge=706/70636, ticks=31104/1956092, in_queue=1993200, util=98.25%
2.54user 1.10system 0:22.14elapsed 16%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2486minor)pagefaults 0swaps