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] [5.0% done] [   341/   264 kb/s] [eta 00m:57s]
Threads: 3: [Fmm] [6.7% done] [   145/     0 kb/s] [eta 00m:56s]
Threads: 3: [Fmm] [8.3% done] [   288/   296 kb/s] [eta 00m:55s]
Threads: 3: [Fmm] [10.0% done] [   528/     0 kb/s] [eta 00m:54s]
Threads: 3: [Fmm] [11.7% done] [   373/    85 kb/s] [eta 00m:53s]
Threads: 2: [_mm] [61.5% done] [  4656/118276 kb/s] [eta 00m:05s]
Threads: 2: [_mF] [60.0% done] [   820/  8878 kb/s] [eta 00m:06s]
Threads: 2: [_mF] [58.8% done] [   134/     0 kb/s] [eta 00m:07s]
Threads: 2: [_mF] [61.1% done] [    16/     0 kb/s] [eta 00m:07s]
Threads: 2: [_mF] [60.0% done] [   186/     0 kb/s] [eta 00m:08s]
Threads: 2: [_mF] [59.1% done] [   166/   150 kb/s] [eta 00m:09s]
Threads: 2: [_mV] [66.7% done] [  5323/  6038 kb/s] [eta 00m:07s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=2649, got signal=6
Threads: 1: [__V] [88.2% done] [ 30134/  1629 kb/s] [eta 00m:02s]
Threads: 1: [__V] [100.0% done] [ 34273/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=2648
  read : io=0KiB, bw=0KiB/s, runt=  7432msec
  write: io=100MiB, bw=14,169KiB/s, runt=  7400msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=    5, avg= 0.20, stdev= 0.44
    bw (KiB/s) : min=    0, max=121184, per=281.89%, avg=60592.00, stdev=85690.03
  cpu          : usr=11.46%, sys=4.31%, ctx=3141
  IO depths    : 1=1.3%, 2=97.7%, 4=1.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=98.5%, 4=0.8%, 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%
fio: (groupid=0): err= 0: pid=2649
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=5.6%, 2=71.6%, 4=7.2%, 8=15.7%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=74.9%, 4=2.7%, 10=1.1%, 20=1.4%, 50=11.7%, 100=4.1%
     lat (msec): 250=0.7%, 500=0.2%, 750=0.2%, 1000=0.2%, >=2000=1.5%
fio: (groupid=0): err= 0: pid=2650
  read : io=100MiB, bw=6,109KiB/s, runt= 17161msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max= 6378, avg=41.18, stdev=323.83
    bw (KiB/s) : min=   13, max=40464, per=188.66%, avg=12785.60, stdev=17417.91
  write: io=97,340KiB, bw=7,193KiB/s, runt= 13856msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max= 5719, avg= 9.93, stdev=214.97
    bw (KiB/s) : min=    0, max=77407, per=120.59%, avg=25920.67, stdev=44588.83
  cpu          : usr=5.03%, sys=2.66%, ctx=6425
  IO depths    : 1=0.9%, 2=52.4%, 4=31.7%, 8=14.9%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=49.0%, 4=3.3%, 10=13.2%, 20=28.7%, 50=2.9%, 100=1.4%
     lat (msec): 250=0.7%, 500=0.2%, 750=0.1%, 1000=0.0%, >=2000=0.1%

Run status group 0 (all jobs):
   READ: io=111MiB, aggrb=6,777KiB/s, minb=0KiB/s, maxb=6,109KiB/s, mint=17161msec, maxt=17161msec
  WRITE: io=284MiB, aggrb=21,495KiB/s, minb=0KiB/s, maxb=14,169KiB/s, mint=17161msec, maxt=17161msec

Disk stats (read/write):
  sda: ios=1473/2233, merge=450/68527, ticks=37532/1553252, in_queue=1591760, util=95.31%
2.58user 1.08system 0:18.57elapsed 19%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2462minor)pagefaults 0swaps