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] [27.3% done] [  1920/ 27840 kb/s] [eta 00m:08s]
Threads: 3: [FmF] [28.6% done] [  1664/     0 kb/s] [eta 00m:10s]
Threads: 3: [FmF] [31.2% done] [  2404/     0 kb/s] [eta 00m:11s]
Threads: 3: [FmF] [31.6% done] [  1836/     0 kb/s] [eta 00m:13s]
Threads: 3: [FmF] [58.3% done] [  1148/ 39540 kb/s] [eta 00m:05s]
Threads: 3: [FmF] [61.5% done] [   768/     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=16648, got signal=6
Threads: 2: [F_F] [100.0% done] [   152/ 13352 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: 1: [V__] [70.8% done] [  5368/     0 kb/s] [eta 00m:07s]
Threads: 1: [V__] [94.7% done] [ 31658/     0 kb/s] [eta 00m:01s]
Threads: 1: [V__] [100.0% done] [ 39952/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=16647
  read : io=100MiB, bw=5,215KiB/s, runt= 20106msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  255, avg=16.69, stdev=27.25
    bw (KiB/s) : min=    5, max=38961, per=334.82%, avg=21153.78, stdev=18069.75
  write: io=97,420KiB, bw=5,781KiB/s, runt= 17256msec
    slat (msec): min=    0, max=    2, avg= 0.00, stdev= 0.05
    clat (msec): min=    0, max=   79, avg= 0.37, stdev= 3.20
    bw (KiB/s) : min=    0, max=37717, per=113.28%, avg=18858.50, stdev=26669.95
  cpu          : usr=4.10%, sys=2.33%, ctx=4782
  IO depths    : 1=1.8%, 2=57.1%, 4=30.5%, 8=10.7%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=50.6%, 4=0.8%, 10=25.0%, 20=14.7%, 50=5.5%, 100=1.7%
     lat (msec): 250=1.4%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=16648
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=83.8%, 4=3.7%, 8=12.2%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=85.1%, 4=0.0%, 10=0.0%, 20=0.2%, 50=0.3%, 100=2.2%
     lat (msec): 250=4.8%, 500=5.9%, 750=1.3%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=16649
  read : io=0KiB, bw=0KiB/s, runt= 17300msec
  write: io=100MiB, bw=6,076KiB/s, runt= 17256msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=    5, avg= 0.22, stdev= 0.49
    bw (KiB/s) : min=    0, max=121831, per=365.90%, avg=60915.50, stdev=86147.53
  cpu          : usr=4.72%, sys=2.06%, ctx=3486
  IO depths    : 1=0.3%, 2=97.1%, 4=2.6%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=97.4%, 4=1.8%, 10=0.1%, 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=121MiB, aggrb=6,318KiB/s, minb=0KiB/s, maxb=5,215KiB/s, mint=17300msec, maxt=20106msec
  WRITE: io=274MiB, aggrb=16,648KiB/s, minb=0KiB/s, maxb=6,076KiB/s, mint=17300msec, maxt=20106msec

Disk stats (read/write):
  sda: ios=1531/3177, merge=493/66667, ticks=32124/2223412, in_queue=2261176, util=97.80%
2.29user 1.19system 0:20.54elapsed 16%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2475minor)pagefaults 0swaps