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: [Fmm] [50.0% done] [  1285/  3131 kb/s] [eta 00m:03s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=5131, got signal=6
Threads: 2: [Fm_] [66.7% done] [  3375/ 30729 kb/s] [eta 00m:02s]
Threads: 2: [Fm_] [71.4% done] [  3700/     0 kb/s] [eta 00m:02s]
Threads: 2: [FF_] [100.0% done] [  3343/     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: [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: [VF_] [71.4% done] [  3108/     0 kb/s] [eta 00m:06s]
Threads: 2: [VF_] [80.0% done] [ 16689/     0 kb/s] [eta 00m:04s]
Threads: 2: [VF_] [94.4% done] [ 21000/     0 kb/s] [eta 00m:01s]
Threads: 2: [VF_] [100.0% done] [ 26398/     0 kb/s] [eta 00m:00s]
Threads: 2: [VF_] [100.0% done] [ 25645/     0 kb/s] [eta 00m:00s]
Threads: 1: [_F_] [100.0% done] [ 10372/     0 kb/s] [eta 00m:00s]
Threads: 1: [_V_] [75.0% done] [  9123/     0 kb/s] [eta 00m:07s]
Threads: 1: [_V_] [100.0% done] [ 37779/     0 kb/s] [eta 00m:00s]
Threads: 1: [_V_] [100.0% done] [ 26403/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=5129
  read : io=100MiB, bw=5,244KiB/s, runt= 19987msec
    clat (msec): min=    0, max=  194, avg=20.29, stdev=27.64
    bw (KiB/s) : min=    1, max=28599, per=230.84%, avg=20440.44, stdev=8936.47
  write: io=100MiB, bw=6,840KiB/s, runt= 15328msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=   23, avg= 0.31, stdev= 1.42
    bw (KiB/s) : min=    0, max=123502, per=441.65%, avg=61751.00, stdev=87329.10
  cpu          : usr=4.40%, sys=2.08%, ctx=5138
  IO depths    : 1=4.8%, 2=55.4%, 4=30.5%, 8=9.3%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=52.0%, 4=0.8%, 10=17.8%, 20=18.3%, 50=3.8%, 100=6.0%
     lat (msec): 250=1.1%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=5130
  read : io=100MiB, bw=4,332KiB/s, runt= 24202msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  623, avg=35.62, stdev=68.49
    bw (KiB/s) : min=    7, max=37424, per=125.00%, avg=11068.50, stdev=14449.52
  write: io=89,220KiB, bw=4,309KiB/s, runt= 21200msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  475, avg= 2.72, stdev=28.25
    bw (KiB/s) : min=    0, max=76988, per=245.92%, avg=34384.00, stdev=39146.70
  cpu          : usr=3.24%, sys=1.62%, ctx=6430
  IO depths    : 1=1.2%, 2=46.7%, 4=33.9%, 8=18.3%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=40.6%, 4=2.3%, 10=12.2%, 20=19.6%, 50=17.9%, 100=2.4%
     lat (msec): 250=3.6%, 500=0.9%, 750=0.4%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=5131
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.4%, 2=94.7%, 4=2.2%, 8=2.7%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=89.7%, 4=5.6%, 10=0.1%, 20=0.5%, 50=0.2%, 100=0.4%
     lat (msec): 250=1.1%, 500=1.0%, 750=1.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=204MiB, aggrb=8,855KiB/s, minb=0KiB/s, maxb=5,244KiB/s, mint=0msec, maxt=24202msec
  WRITE: io=283MiB, aggrb=13,982KiB/s, minb=0KiB/s, maxb=6,840KiB/s, mint=0msec, maxt=24202msec

Disk stats (read/write):
  sda: ios=2454/2890, merge=1142/69235, ticks=31824/2782268, in_queue=2827240, util=97.35%
2.66user 1.06system 0:24.66elapsed 15%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2485minor)pagefaults 0swaps