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] [60.0% done] [   692/ 48784 kb/s] [eta 00m:02s]
Threads: 3: [FmF] [57.1% done] [  1372/     0 kb/s] [eta 00m:03s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
Threads: 3: [FFF] [100.0% done] [   748/ 14224 kb/s] [eta 00m:00s]
fio: pid=13550, 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: [V_V] [68.2% done] [  2973/     0 kb/s] [eta 00m:07s]
Threads: 2: [V_V] [76.2% done] [ 24103/     0 kb/s] [eta 00m:05s]
Threads: 2: [V_V] [89.5% done] [ 35764/     0 kb/s] [eta 00m:02s]
Threads: 2: [V_V] [100.0% done] [ 33059/     0 kb/s] [eta 00m:00s]
Threads: 2: [V_V] [100.0% done] [ 37734/     0 kb/s] [eta 00m:00s]
Threads: 2: [V_V] [100.0% done] [ 33339/     0 kb/s] [eta 00m:00s]
Threads: 1: [E_V] [100.0% done] [ 24162/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=13549
  read : io=100MiB, bw=4,832KiB/s, runt= 21698msec
    clat (msec): min=    0, max=  275, avg=29.11, stdev=44.89
    bw (KiB/s) : min=    0, max=25156, per=147.67%, avg=14866.23, stdev=7196.38
  write: io=100MiB, bw=6,938KiB/s, runt= 15112msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=   14, avg= 0.26, stdev= 0.98
    bw (KiB/s) : min=    0, max=121833, per=310.47%, avg=60916.50, stdev=86148.94
  cpu          : usr=3.85%, sys=1.71%, ctx=4561
  IO depths    : 1=3.4%, 2=60.5%, 4=27.9%, 8=8.2%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=52.5%, 4=0.5%, 10=18.7%, 20=13.5%, 50=7.2%, 100=2.1%
     lat (msec): 250=5.3%, 500=0.1%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=13550
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.4%, 2=89.5%, 4=2.3%, 8=7.8%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=89.4%, 4=0.7%, 10=0.5%, 20=0.1%, 50=0.2%, 100=0.8%
     lat (msec): 250=4.0%, 500=3.9%, 750=0.1%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=13551
  read : io=100MiB, bw=4,794KiB/s, runt= 21869msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  407, avg=34.66, stdev=54.62
    bw (KiB/s) : min=    3, max=23319, per=121.32%, avg=12213.33, stdev=7381.53
  write: io=95,044KiB, bw=6,441KiB/s, runt= 15108msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  166, avg= 0.58, stdev= 6.80
    bw (KiB/s) : min=    0, max=137265, per=349.79%, avg=68632.50, stdev=97061.01
  cpu          : usr=3.24%, sys=1.55%, ctx=4593
  IO depths    : 1=3.5%, 2=58.1%, 4=28.3%, 8=10.1%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=49.8%, 4=0.2%, 10=14.9%, 20=18.0%, 50=7.8%, 100=2.0%
     lat (msec): 250=6.6%, 500=0.5%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=210MiB, aggrb=10,067KiB/s, minb=0KiB/s, maxb=4,832KiB/s, mint=21869msec, maxt=21869msec
  WRITE: io=283MiB, aggrb=19,621KiB/s, minb=0KiB/s, maxb=6,938KiB/s, mint=21869msec, maxt=21869msec

Disk stats (read/write):
  sda: ios=2180/2618, merge=943/69584, ticks=36868/2075584, in_queue=2118460, util=98.18%
2.32user 0.96system 0:22.28elapsed 14%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2476minor)pagefaults 0swaps