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: [FFF] [100.0% done] [  1144/ 34992 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]
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=14630, got signal=6
Threads: 2: [_VV] [69.6% done] [ 10052/     0 kb/s] [eta 00m:07s]
Threads: 2: [_VV] [77.3% done] [ 32908/     0 kb/s] [eta 00m:05s]
Threads: 2: [_VV] [90.0% done] [ 27236/     0 kb/s] [eta 00m:02s]
Threads: 2: [_VV] [100.0% done] [ 35180/     0 kb/s] [eta 00m:00s]
Threads: 2: [_VV] [100.0% done] [ 38616/     0 kb/s] [eta 00m:00s]
Threads: 2: [_VV] [100.0% done] [ 26600/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=14630
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.3%, 2=92.8%, 4=2.7%, 8=4.2%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=93.9%, 4=0.3%, 10=0.0%, 20=0.1%, 50=0.3%, 100=3.4%
     lat (msec): 250=1.2%, 500=0.5%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=14631
  read : io=100MiB, bw=4,700KiB/s, runt= 22307msec
    clat (msec): min=    0, max=  415, avg=29.71, stdev=54.27
    bw (KiB/s) : min=    3, max=30015, per=147.32%, avg=14573.15, stdev=9158.77
  write: io=100MiB, bw=6,668KiB/s, runt= 15724msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=   15, avg= 0.42, stdev= 1.43
    bw (KiB/s) : min=    0, max=113186, per=298.64%, avg=56593.00, stdev=80034.59
  cpu          : usr=4.05%, sys=1.63%, ctx=5063
  IO depths    : 1=1.6%, 2=57.3%, 4=31.1%, 8=9.9%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=50.2%, 4=1.4%, 10=21.8%, 20=14.2%, 50=6.1%, 100=0.6%
     lat (msec): 250=4.8%, 500=0.8%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=14632
  read : io=100MiB, bw=4,759KiB/s, runt= 22029msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  511, avg=38.80, stdev=71.91
    bw (KiB/s) : min=   12, max=30007, per=111.14%, avg=10994.12, stdev=10020.12
  write: io=96,900KiB, bw=6,312KiB/s, runt= 15720msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  199, avg= 0.68, stdev= 8.76
    bw (KiB/s) : min=    0, max=22650, per=59.76%, avg=11325.00, stdev=16015.97
  cpu          : usr=3.58%, sys=1.69%, ctx=5103
  IO depths    : 1=1.6%, 2=55.1%, 4=30.8%, 8=12.5%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=49.0%, 4=0.3%, 10=20.9%, 20=13.9%, 50=7.1%, 100=1.7%
     lat (msec): 250=5.5%, 500=1.4%, 750=0.1%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=210MiB, aggrb=9,892KiB/s, minb=0KiB/s, maxb=4,759KiB/s, mint=22029msec, maxt=22307msec
  WRITE: io=284MiB, aggrb=18,950KiB/s, minb=0KiB/s, maxb=6,668KiB/s, mint=22029msec, maxt=22307msec

Disk stats (read/write):
  sda: ios=2224/2972, merge=718/69707, ticks=40812/2088468, in_queue=2129284, util=98.93%
2.47user 1.08system 0:22.63elapsed 15%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2475minor)pagefaults 0swaps