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] [14.3% done] [  1956/  7204 kb/s] [eta 00m:18s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
Threads: 3: [FFF] [100.0% done] [   228/ 81156 kb/s] [eta 00m:00s]
fio: pid=15789, got signal=6
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: 1: [__V] [68.2% done] [   464/     0 kb/s] [eta 00m:07s]
Threads: 1: [__V] [88.9% done] [ 28732/     0 kb/s] [eta 00m:02s]
Threads: 1: [__V] [100.0% done] [ 35632/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=15788
  read : io=0KiB, bw=0KiB/s, runt= 15245msec
  write: io=100MiB, bw=6,894KiB/s, runt= 15208msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=    5, avg= 0.19, stdev= 0.43
    bw (KiB/s) : min=    0, max=127811, per=330.59%, avg=63905.50, stdev=90376.02
  cpu          : usr=5.35%, sys=1.89%, ctx=3348
  IO depths    : 1=0.2%, 2=98.7%, 4=1.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=98.7%, 4=0.7%, 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%
fio: (groupid=0): err= 0: pid=15789
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=89.1%, 4=3.7%, 8=6.9%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=89.9%, 4=0.8%, 10=0.1%, 20=0.1%, 50=0.1%, 100=2.5%
     lat (msec): 250=4.4%, 500=1.2%, 750=0.4%, 1000=0.1%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=15790
  read : io=100MiB, bw=5,697KiB/s, runt= 18403msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  328, avg=18.71, stdev=29.61
    bw (KiB/s) : min=    3, max=40309, per=305.57%, avg=19785.60, stdev=17037.40
  write: io=96,576KiB, bw=6,497KiB/s, runt= 15220msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  167, avg= 0.92, stdev= 9.08
    bw (KiB/s) : min=    0, max=32326, per=83.61%, avg=16163.00, stdev=22857.93
  cpu          : usr=4.41%, sys=2.04%, ctx=4634
  IO depths    : 1=1.5%, 2=54.8%, 4=31.6%, 8=12.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=48.3%, 4=1.3%, 10=22.2%, 20=18.1%, 50=5.7%, 100=2.2%
     lat (msec): 250=2.0%, 500=0.1%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=114MiB, aggrb=6,475KiB/s, minb=0KiB/s, maxb=5,697KiB/s, mint=18403msec, maxt=18403msec
  WRITE: io=281MiB, aggrb=19,331KiB/s, minb=0KiB/s, maxb=6,894KiB/s, mint=18403msec, maxt=18403msec

Disk stats (read/write):
  sda: ios=1369/2835, merge=400/68642, ticks=18612/2020464, in_queue=2043896, util=97.17%
2.40user 0.97system 0:19.00elapsed 17%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2467minor)pagefaults 0swaps