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] [12.0% done] [ 11068/     0 kb/s] [eta 00m:22s]
Threads: 3: [FFm] [50.0% done] [  6196/ 95396 kb/s] [eta 00m:04s]
Threads: 3: [FFm] [50.0% done] [  1688/     0 kb/s] [eta 00m:05s]
Threads: 3: [FFF] [100.0% done] [  1580/ 26804 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.
Threads: 3: [VVV] [68.2% done] [   688/     0 kb/s] [eta 00m:07s]
fio: pid=16539, got signal=6
Threads: 2: [VV_] [72.7% done] [ 29332/     0 kb/s] [eta 00m:06s]
Threads: 2: [VV_] [85.0% done] [ 23368/     0 kb/s] [eta 00m:03s]
Threads: 2: [VV_] [94.7% done] [ 33912/     0 kb/s] [eta 00m:01s]
Threads: 2: [VV_] [100.0% done] [ 36544/     0 kb/s] [eta 00m:00s]
Threads: 2: [VV_] [100.0% done] [ 30605/     0 kb/s] [eta 00m:00s]
Threads: 1: [V__] [100.0% done] [ 33308/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=16537
  read : io=100MiB, bw=4,845KiB/s, runt= 21641msec
    clat (msec): min=    0, max=  374, avg=28.12, stdev=51.38
    bw (KiB/s) : min=    5, max=31502, per=125.52%, avg=13700.75, stdev=9407.76
  write: io=100MiB, bw=6,876KiB/s, runt= 15248msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=   15, avg= 0.30, stdev= 1.21
    bw (KiB/s) : min=    0, max=121053, per=338.44%, avg=60526.50, stdev=85597.40
  cpu          : usr=3.96%, sys=2.29%, ctx=4957
  IO depths    : 1=3.0%, 2=59.0%, 4=29.5%, 8=8.5%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=50.4%, 4=0.7%, 10=25.5%, 20=10.9%, 50=6.1%, 100=1.4%
     lat (msec): 250=4.1%, 500=0.7%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=16538
  read : io=100MiB, bw=4,930KiB/s, runt= 21266msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  462, avg=41.90, stdev=63.27
    bw (KiB/s) : min=    6, max=22598, per=95.73%, avg=10449.21, stdev=7510.09
  write: io=87,412KiB, bw=5,871KiB/s, runt= 15244msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  170, avg= 1.02, stdev= 9.66
    bw (KiB/s) : min=    0, max=14121, per=39.48%, avg=7060.50, stdev=9985.05
  cpu          : usr=3.25%, sys=1.50%, ctx=5112
  IO depths    : 1=1.6%, 2=54.2%, 4=29.3%, 8=14.8%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=48.2%, 4=0.2%, 10=18.1%, 20=13.9%, 50=7.5%, 100=2.5%
     lat (msec): 250=8.8%, 500=0.7%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=16539
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.8%, 2=82.7%, 4=2.9%, 8=13.7%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=82.6%, 4=0.4%, 10=0.4%, 20=0.7%, 50=0.3%, 100=2.3%
     lat (msec): 250=10.0%, 500=2.9%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=225MiB, aggrb=10,915KiB/s, minb=0KiB/s, maxb=4,930KiB/s, mint=0msec, maxt=21641msec
  WRITE: io=260MiB, aggrb=17,884KiB/s, minb=0KiB/s, maxb=6,876KiB/s, mint=0msec, maxt=21641msec

Disk stats (read/write):
  sda: ios=2567/1949, merge=927/64533, ticks=41104/2039896, in_queue=2091052, util=98.24%
2.24user 1.13system 0:22.14elapsed 15%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2477minor)pagefaults 0swaps