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: [FFm] [42.9% done] [  2300/ 33812 kb/s] [eta 00m:04s]
Threads: 3: [FFm] [57.1% done] [   728/ 21212 kb/s] [eta 00m:03s]
Threads: 3: [FFF] [100.0% done] [   220/ 21596 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=15549, got signal=6
Threads: 2: [VV_] [70.0% done] [  1384/     0 kb/s] [eta 00m:06s]
Threads: 2: [VV_] [75.0% done] [ 32852/     0 kb/s] [eta 00m:05s]
Threads: 2: [VV_] [84.2% done] [ 25128/     0 kb/s] [eta 00m:03s]
Threads: 2: [VV_] [100.0% done] [ 36264/     0 kb/s] [eta 00m:00s]
Threads: 2: [VV_] [100.0% done] [ 38924/     0 kb/s] [eta 00m:00s]
Threads: 2: [VV_] [100.0% done] [ 30116/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=15547
  read : io=100MiB, bw=5,133KiB/s, runt= 20425msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  526, avg=34.81, stdev=60.03
    bw (KiB/s) : min=    0, max=29496, per=107.30%, avg=11744.69, stdev=10213.81
  write: io=96,704KiB, bw=6,959KiB/s, runt= 14228msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  127, avg= 0.55, stdev= 5.15
    bw (KiB/s) : min=    0, max=30004, per=73.27%, avg=15002.00, stdev=21216.03
  cpu          : usr=3.58%, sys=2.17%, ctx=4842
  IO depths    : 1=1.6%, 2=56.1%, 4=30.5%, 8=11.8%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=49.9%, 4=0.3%, 10=22.6%, 20=12.2%, 50=6.2%, 100=1.6%
     lat (msec): 250=6.2%, 500=0.8%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=15548
  read : io=100MiB, bw=5,239KiB/s, runt= 20013msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  355, avg=27.66, stdev=48.52
    bw (KiB/s) : min=   18, max=30982, per=135.54%, avg=14836.33, stdev=9667.05
  write: io=98,948KiB, bw=7,123KiB/s, runt= 14224msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  161, avg= 0.49, stdev= 6.03
    bw (KiB/s) : min=    0, max=137527, per=335.84%, avg=68763.50, stdev=97246.27
  cpu          : usr=3.78%, sys=1.90%, ctx=4802
  IO depths    : 1=2.1%, 2=58.6%, 4=29.4%, 8=9.9%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=51.5%, 4=0.3%, 10=24.2%, 20=12.6%, 50=5.0%, 100=1.1%
     lat (msec): 250=5.0%, 500=0.2%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=15549
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.4%, 2=89.6%, 4=2.2%, 8=7.8%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=89.4%, 4=0.3%, 10=0.5%, 20=0.1%, 50=0.3%, 100=1.1%
     lat (msec): 250=5.6%, 500=2.4%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=213MiB, aggrb=10,946KiB/s, minb=0KiB/s, maxb=5,239KiB/s, mint=0msec, maxt=20425msec
  WRITE: io=278MiB, aggrb=20,475KiB/s, minb=0KiB/s, maxb=7,123KiB/s, mint=0msec, maxt=20425msec

Disk stats (read/write):
  sda: ios=2284/1992, merge=710/69064, ticks=37348/1929380, in_queue=1966732, util=98.72%
2.25user 1.15system 0:20.72elapsed 16%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2467minor)pagefaults 0swaps