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=4498, got signal=6
Threads: 2: [_mF] [10.7% done] [  7296/ 34396 kb/s] [eta 00m:25s]
Threads: 2: [_mF] [12.1% done] [  1358/  1035 kb/s] [eta 00m:29s]
Threads: 2: [_mF] [12.8% done] [   964/     0 kb/s] [eta 00m:34s]
Threads: 2: [_mF] [33.3% done] [   799/ 28987 kb/s] [eta 00m:12s]
Threads: 2: [_mF] [58.3% done] [   729/ 33698 kb/s] [eta 00m:05s]
Threads: 2: [_mF] [57.1% done] [   728/     0 kb/s] [eta 00m:06s]
Threads: 2: [_mF] [56.2% done] [   752/     0 kb/s] [eta 00m:07s]
Threads: 2: [_mF] [66.7% done] [   482/ 11093 kb/s] [eta 00m:05s]
Threads: 2: [_FF] [100.0% done] [    55/  4395 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: [_FF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [_VV] [68.0% done] [ 10275/     0 kb/s] [eta 00m:08s]
Threads: 2: [_VV] [78.3% done] [ 29971/     0 kb/s] [eta 00m:05s]
Threads: 2: [_VV] [90.5% done] [ 27451/     0 kb/s] [eta 00m:02s]
Threads: 2: [_VV] [100.0% done] [ 33713/     0 kb/s] [eta 00m:00s]
Threads: 2: [_VV] [100.0% done] [ 27730/     0 kb/s] [eta 00m:00s]
Threads: 2: [_VV] [100.0% done] [ 29933/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=4498
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=8.6%, 2=82.5%, 4=4.0%, 8=4.8%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=90.2%, 4=1.8%, 10=0.9%, 20=0.4%, 50=1.9%, 100=0.9%
     lat (msec): 250=2.4%, 500=1.1%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=4499
  read : io=100MiB, bw=4,536KiB/s, runt= 23114msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max= 1214, avg=70.09, stdev=130.62
    bw (KiB/s) : min=    7, max=18735, per=65.23%, avg=6066.77, stdev=5977.18
  write: io=80,360KiB, bw=4,903KiB/s, runt= 16780msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max= 1014, avg= 7.31, stdev=62.24
    bw (KiB/s) : min=    0, max=129875, per=170.58%, avg=28338.60, stdev=56966.15
  cpu          : usr=2.67%, sys=1.66%, ctx=4707
  IO depths    : 1=2.5%, 2=53.9%, 4=28.2%, 8=15.3%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=47.7%, 4=0.1%, 10=8.1%, 20=19.1%, 50=8.6%, 100=2.2%
     lat (msec): 250=9.1%, 500=4.0%, 750=0.5%, 1000=0.3%, >=2000=0.2%
fio: (groupid=0): err= 0: pid=4500
  read : io=100MiB, bw=4,501KiB/s, runt= 23294msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  426, avg=36.64, stdev=63.71
    bw (KiB/s) : min=    8, max=22790, per=113.29%, avg=10535.67, stdev=8423.85
  write: io=96,324KiB, bw=5,876KiB/s, runt= 16784msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  242, avg= 1.64, stdev=13.39
    bw (KiB/s) : min=    0, max=40540, per=157.02%, avg=26085.67, stdev=22634.90
  cpu          : usr=3.38%, sys=1.89%, ctx=4629
  IO depths    : 1=3.0%, 2=58.1%, 4=29.0%, 8=9.9%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=50.1%, 4=0.5%, 10=15.1%, 20=18.9%, 50=5.6%, 100=1.5%
     lat (msec): 250=6.8%, 500=1.4%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=207MiB, aggrb=9,300KiB/s, minb=0KiB/s, maxb=4,536KiB/s, mint=23114msec, maxt=23294msec
  WRITE: io=266MiB, aggrb=16,613KiB/s, minb=0KiB/s, maxb=5,876KiB/s, mint=23114msec, maxt=23294msec

Disk stats (read/write):
  sda: ios=2610/2243, merge=877/65691, ticks=68548/1905684, in_queue=1978864, util=98.80%
2.31user 1.08system 0:23.65elapsed 14%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2485minor)pagefaults 0swaps