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: [mFm] [27.3% done] [  7724/ 78311 kb/s] [eta 00m:08s]
Threads: 3: [mFm] [66.7% done] [  3343/ 96298 kb/s] [eta 00m:02s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=343, got signal=6
Threads: 2: [_FF] [100.0% done] [  3072/ 19805 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: [_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: [_VV] [69.6% done] [   146/     0 kb/s] [eta 00m:07s]
Threads: 2: [_VV] [70.8% done] [ 22381/     0 kb/s] [eta 00m:07s]
Threads: 2: [_VV] [85.7% done] [ 33398/     0 kb/s] [eta 00m:03s]
Threads: 2: [_VV] [90.5% done] [ 25820/     0 kb/s] [eta 00m:02s]
Threads: 2: [_VV] [100.0% done] [ 35344/     0 kb/s] [eta 00m:00s]
Threads: 2: [_VV] [100.0% done] [ 28300/     0 kb/s] [eta 00m:00s]
Threads: 2: [_VV] [100.0% done] [ 26861/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=343
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=5.3%, 2=68.1%, 4=13.7%, 8=12.9%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=64.0%, 4=16.6%, 10=6.1%, 20=0.5%, 50=1.0%, 100=3.9%
     lat (msec): 250=5.3%, 500=2.1%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=344
  read : io=100MiB, bw=4,651KiB/s, runt= 22542msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  398, avg=37.73, stdev=64.08
    bw (KiB/s) : min=    0, max=22732, per=114.43%, avg=11320.24, stdev=7684.26
  write: io=93,856KiB, bw=6,002KiB/s, runt= 16012msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  307, avg= 1.33, stdev=14.58
    bw (KiB/s) : min=    0, max=109477, per=250.11%, avg=43051.33, stdev=58361.57
  cpu          : usr=3.51%, sys=1.58%, ctx=7656
  IO depths    : 1=5.0%, 2=50.6%, 4=30.6%, 8=13.8%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=48.7%, 4=0.7%, 10=17.7%, 20=16.2%, 50=7.8%, 100=1.2%
     lat (msec): 250=6.1%, 500=1.4%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=345
  read : io=100MiB, bw=4,668KiB/s, runt= 22461msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  410, avg=46.75, stdev=68.66
    bw (KiB/s) : min=    0, max=25141, per=90.43%, avg=8946.32, stdev=7684.52
  write: io=85,908KiB, bw=5,493KiB/s, runt= 16012msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  298, avg= 1.92, stdev=17.55
    bw (KiB/s) : min=    0, max=49577, per=122.99%, avg=21169.67, stdev=25568.68
  cpu          : usr=2.94%, sys=1.60%, ctx=7329
  IO depths    : 1=1.4%, 2=52.4%, 4=29.6%, 8=16.6%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=47.4%, 4=0.4%, 10=17.4%, 20=14.2%, 50=6.9%, 100=2.8%
     lat (msec): 250=9.3%, 500=1.4%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=213MiB, aggrb=9,893KiB/s, minb=0KiB/s, maxb=4,668KiB/s, mint=22461msec, maxt=22542msec
  WRITE: io=263MiB, aggrb=17,213KiB/s, minb=0KiB/s, maxb=6,002KiB/s, mint=22461msec, maxt=22542msec

Disk stats (read/write):
  sda: ios=2742/2348, merge=872/64747, ticks=48040/1942692, in_queue=1992872, util=98.91%
2.21user 0.98system 0:22.91elapsed 13%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2482minor)pagefaults 0swaps