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] [60.0% done] [   913/ 13753 kb/s] [eta 00m:02s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=21161, got signal=6
Threads: 2: [F_F] [100.0% done] [   287/ 19219 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] [68.2% done] [  1492/     0 kb/s] [eta 00m:07s]
Threads: 2: [V_V] [76.2% done] [ 26424/     0 kb/s] [eta 00m:05s]
Threads: 2: [V_V] [89.5% done] [ 31440/     0 kb/s] [eta 00m:02s]
Threads: 2: [V_V] [100.0% done] [ 34130/     0 kb/s] [eta 00m:00s]
Threads: 2: [V_V] [100.0% done] [ 36403/     0 kb/s] [eta 00m:00s]
Threads: 2: [V_V] [100.0% done] [ 33988/     0 kb/s] [eta 00m:00s]
Threads: 1: [V__] [100.0% done] [ 29530/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=21160
  read : io=100MiB, bw=4,779KiB/s, runt= 21941msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  527, avg=33.92, stdev=62.31
    bw (KiB/s) : min=    0, max=23129, per=117.96%, avg=11734.25, stdev=7748.24
  write: io=98MiB, bw=6,684KiB/s, runt= 15348msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  383, avg= 1.00, stdev=13.87
    bw (KiB/s) : min=    0, max=46235, per=117.65%, avg=22812.33, stdev=23123.54
  cpu          : usr=3.63%, sys=1.68%, ctx=4548
  IO depths    : 1=3.9%, 2=59.3%, 4=27.9%, 8=8.9%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=50.3%, 4=0.2%, 10=16.0%, 20=18.7%, 50=6.6%, 100=1.8%
     lat (msec): 250=5.0%, 500=1.2%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=21161
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.3%, 2=89.6%, 4=5.0%, 8=5.1%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=90.9%, 4=1.7%, 10=0.1%, 20=0.1%, 50=0.6%, 100=0.6%
     lat (msec): 250=4.0%, 500=1.0%, 750=0.5%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=21162
  read : io=100MiB, bw=4,814KiB/s, runt= 21779msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  342, avg=35.44, stdev=53.78
    bw (KiB/s) : min=    1, max=29115, per=119.62%, avg=11899.60, stdev=7962.03
  write: io=96,528KiB, bw=6,438KiB/s, runt= 15352msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  142, avg= 0.87, stdev= 7.37
    bw (KiB/s) : min=    0, max=45923, per=118.42%, avg=22961.50, stdev=32472.46
  cpu          : usr=3.53%, sys=1.85%, ctx=4327
  IO depths    : 1=3.3%, 2=57.3%, 4=29.4%, 8=10.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=48.3%, 4=0.9%, 10=16.2%, 20=17.0%, 50=7.5%, 100=3.0%
     lat (msec): 250=6.4%, 500=0.5%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=208MiB, aggrb=9,948KiB/s, minb=0KiB/s, maxb=4,814KiB/s, mint=21779msec, maxt=21941msec
  WRITE: io=284MiB, aggrb=19,390KiB/s, minb=0KiB/s, maxb=6,684KiB/s, mint=21779msec, maxt=21941msec

Disk stats (read/write):
  sda: ios=2216/2790, merge=1182/69709, ticks=37576/2111244, in_queue=2149284, util=98.76%
2.36user 1.10system 0:22.27elapsed 15%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2484minor)pagefaults 0swaps