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: [mFF] [30.0% done] [  7588/ 33704 kb/s] [eta 00m:07s]
Threads: 3: [mFF] [30.8% done] [  1028/     0 kb/s] [eta 00m:09s]
Threads: 3: [mFF] [31.2% done] [   972/     0 kb/s] [eta 00m:11s]
Threads: 3: [mFF] [33.3% done] [   668/   336 kb/s] [eta 00m:12s]
Threads: 3: [mFF] [43.8% done] [  1536/ 14808 kb/s] [eta 00m:09s]
Threads: 3: [mFF] [66.7% done] [   224/ 30844 kb/s] [eta 00m:04s]
Threads: 3: [mFF] [64.3% done] [   272/   248 kb/s] [eta 00m:05s]
Threads: 3: [mFF] [66.7% done] [   642/     0 kb/s] [eta 00m:05s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=24023, got signal=6
Threads: 2: [_FF] [100.0% done] [    74/  5029 kb/s] [eta 00m:00s]
Threads: 2: [_FF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [_FF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [_FF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [_FF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [_VV] [69.6% done] [ 11819/     0 kb/s] [eta 00m:07s]
Threads: 2: [_VV] [77.3% done] [ 28947/     0 kb/s] [eta 00m:05s]
Threads: 2: [_VV] [90.0% done] [ 29038/     0 kb/s] [eta 00m:02s]
Threads: 2: [_VV] [100.0% done] [ 36174/     0 kb/s] [eta 00m:00s]
Threads: 2: [_VV] [100.0% done] [ 35054/     0 kb/s] [eta 00m:00s]
Threads: 2: [_VV] [100.0% done] [ 29416/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=24023
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=82.2%, 4=4.5%, 8=13.1%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=82.4%, 4=1.2%, 10=0.1%, 20=0.1%, 50=0.4%, 100=1.0%
     lat (msec): 250=8.4%, 500=2.9%, 750=2.1%, 1000=1.1%, >=2000=0.1%
fio: (groupid=0): err= 0: pid=24024
  read : io=100MiB, bw=4,736KiB/s, runt= 22138msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  393, avg=35.98, stdev=58.67
    bw (KiB/s) : min=    7, max=22760, per=110.99%, avg=11348.00, stdev=8602.71
  write: io=97,344KiB, bw=6,332KiB/s, runt= 15740msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  102, avg= 0.44, stdev= 4.02
    bw (KiB/s) : min=    0, max=31308, per=87.03%, avg=15654.00, stdev=22138.10
  cpu          : usr=3.32%, sys=1.84%, ctx=4527
  IO depths    : 1=3.4%, 2=57.5%, 4=28.7%, 8=10.4%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=49.1%, 4=0.4%, 10=16.5%, 20=16.0%, 50=9.0%, 100=1.8%
     lat (msec): 250=6.2%, 500=0.9%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=24025
  read : io=100MiB, bw=4,667KiB/s, runt= 22465msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  512, avg=40.49, stdev=67.78
    bw (KiB/s) : min=   12, max=25115, per=101.92%, avg=10420.76, stdev=9110.63
  write: io=96,296KiB, bw=6,266KiB/s, runt= 15736msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  247, avg= 0.98, stdev=10.76
    bw (KiB/s) : min=    0, max=133369, per=276.54%, avg=49741.00, stdev=72856.50
  cpu          : usr=3.49%, sys=1.69%, ctx=4514
  IO depths    : 1=3.4%, 2=56.4%, 4=28.7%, 8=11.5%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=48.5%, 4=0.6%, 10=15.4%, 20=15.8%, 50=8.7%, 100=3.1%
     lat (msec): 250=6.6%, 500=1.1%, 750=0.1%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=219MiB, aggrb=10,224KiB/s, minb=0KiB/s, maxb=4,736KiB/s, mint=22138msec, maxt=22465msec
  WRITE: io=270MiB, aggrb=17,987KiB/s, minb=0KiB/s, maxb=6,332KiB/s, mint=22138msec, maxt=22465msec

Disk stats (read/write):
  sda: ios=2636/2442, merge=1032/66559, ticks=64392/1954908, in_queue=2021864, util=98.69%
2.24user 1.06system 0:22.75elapsed 14%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2481minor)pagefaults 0swaps