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] [37.5% done] [  1312/ 44372 kb/s] [eta 00m:05s]
Threads: 3: [FmF] [57.1% done] [  1220/ 21224 kb/s] [eta 00m:03s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=25306, got signal=6
Threads: 2: [F_F] [100.0% done] [     0/  6676 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: 1: [__V] [71.4% done] [  4555/     0 kb/s] [eta 00m:06s]
Threads: 1: [__V] [94.1% done] [ 32528/     0 kb/s] [eta 00m:01s]
Threads: 1: [__V] [100.0% done] [ 37408/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=25305
  read : io=0KiB, bw=0KiB/s, runt= 14918msec
  write: io=100MiB, bw=7,044KiB/s, runt= 14884msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=    3, avg= 0.19, stdev= 0.42
    bw (KiB/s) : min=    0, max=128147, per=323.05%, avg=64073.50, stdev=90613.61
  cpu          : usr=5.60%, sys=2.01%, ctx=4940
  IO depths    : 1=0.2%, 2=97.4%, 4=2.3%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=98.6%, 4=0.8%, 10=0.0%, 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=25306
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=90.1%, 4=4.0%, 8=5.7%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=91.5%, 4=1.0%, 10=0.1%, 20=0.1%, 50=0.2%, 100=0.5%
     lat (msec): 250=3.4%, 500=1.5%, 750=0.9%, 1000=0.5%, >=2000=0.1%
fio: (groupid=0): err= 0: pid=25307
  read : io=100MiB, bw=5,807KiB/s, runt= 18057msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  418, avg=21.35, stdev=42.33
    bw (KiB/s) : min=    3, max=38879, per=322.62%, avg=20302.60, stdev=15514.78
  write: io=92,092KiB, bw=6,337KiB/s, runt= 14880msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  132, avg= 0.47, stdev= 5.27
    bw (KiB/s) : min=    0, max=135569, per=341.76%, avg=67784.50, stdev=95861.76
  cpu          : usr=3.79%, sys=2.50%, ctx=6436
  IO depths    : 1=0.9%, 2=53.4%, 4=31.6%, 8=14.1%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=48.8%, 4=2.4%, 10=18.2%, 20=23.0%, 50=3.7%, 100=1.2%
     lat (msec): 250=2.2%, 500=0.4%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=108MiB, aggrb=6,293KiB/s, minb=0KiB/s, maxb=5,807KiB/s, mint=18057msec, maxt=18057msec
  WRITE: io=282MiB, aggrb=19,834KiB/s, minb=0KiB/s, maxb=7,044KiB/s, mint=18057msec, maxt=18057msec

Disk stats (read/write):
  sda: ios=1346/2717, merge=331/69033, ticks=23508/1934524, in_queue=1966580, util=98.35%
2.30user 1.06system 0:18.39elapsed 18%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2468minor)pagefaults 0swaps