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] [37.5% done] [  2592/  7016 kb/s] [eta 00m:05s]
Threads: 3: [FmF] [44.4% done] [  1236/ 52613 kb/s] [eta 00m:05s]
Threads: 3: [FmF] [55.6% done] [   748/ 10256 kb/s] [eta 00m:04s]
Threads: 3: [FmF] [54.5% done] [   824/     0 kb/s] [eta 00m:05s]
Threads: 3: [FmF] [63.6% done] [   484/ 14480 kb/s] [eta 00m:04s]
Threads: 3: [FFF] [100.0% done] [   240/  8972 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: [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]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=14366, got signal=6
Threads: 1: [V__] [75.0% done] [  9052/     0 kb/s] [eta 00m:06s]
Threads: 1: [V__] [100.0% done] [ 34756/     0 kb/s] [eta 00m:00s]
Threads: 1: [V__] [100.0% done] [ 40944/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=14365
  read : io=100MiB, bw=5,014KiB/s, runt= 20909msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  843, avg=23.65, stdev=79.84
    bw (KiB/s) : min=    6, max=43188, per=282.45%, avg=15933.25, stdev=18760.67
  write: io=98,040KiB, bw=5,538KiB/s, runt= 18128msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  575, avg= 2.70, stdev=30.06
    bw (KiB/s) : min=    0, max=34651, per=70.79%, avg=11598.33, stdev=19964.32
  cpu          : usr=3.86%, sys=1.87%, ctx=7186
  IO depths    : 1=1.7%, 2=56.5%, 4=30.6%, 8=11.2%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=48.8%, 4=1.3%, 10=26.2%, 20=16.8%, 50=3.7%, 100=1.3%
     lat (msec): 250=0.6%, 500=0.5%, 750=0.7%, 1000=0.1%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=14366
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.5%, 2=87.6%, 4=2.7%, 8=9.2%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=86.8%, 4=0.7%, 10=0.5%, 20=0.2%, 50=0.8%, 100=2.5%
     lat (msec): 250=2.4%, 500=3.3%, 750=2.4%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=14367
  read : io=0KiB, bw=0KiB/s, runt= 18173msec
  write: io=100MiB, bw=5,785KiB/s, runt= 18124msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=    3, avg= 0.17, stdev= 0.39
    bw (KiB/s) : min=    0, max=128344, per=391.70%, avg=64172.00, stdev=90752.91
  cpu          : usr=4.42%, sys=1.72%, ctx=6028
  IO depths    : 1=0.9%, 2=98.2%, 4=1.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=99.3%, 4=0.3%, 10=0.0%, 20=0.0%, 50=0.0%, 100=0.0%
     lat (msec): 250=0.0%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=113MiB, aggrb=5,641KiB/s, minb=0KiB/s, maxb=5,014KiB/s, mint=18173msec, maxt=20909msec
  WRITE: io=283MiB, aggrb=16,383KiB/s, minb=0KiB/s, maxb=5,785KiB/s, mint=18173msec, maxt=20909msec

Disk stats (read/write):
  sda: ios=1243/2728, merge=387/69590, ticks=20220/2448768, in_queue=2476196, util=97.85%
2.40user 0.99system 0:21.29elapsed 15%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2481minor)pagefaults 0swaps