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] [60.0% done] [   808/     0 kb/s] [eta 00m:02s]
Threads: 3: [FFm] [66.7% done] [   520/  8572 kb/s] [eta 00m:02s]
Threads: 3: [FFm] [71.4% done] [   388/   176 kb/s] [eta 00m:02s]
Threads: 3: [FFm] [66.7% done] [   492/     0 kb/s] [eta 00m:03s]
Threads: 3: [FFF] [100.0% done] [   152/  4060 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=21103, got signal=6
Threads: 2: [_VV] [71.4% done] [ 10760/     0 kb/s] [eta 00m:06s]
Threads: 2: [_VV] [80.0% done] [ 36372/     0 kb/s] [eta 00m:04s]
Threads: 2: [_VV] [94.4% done] [ 28172/     0 kb/s] [eta 00m:01s]
Threads: 2: [_VV] [100.0% done] [ 38145/     0 kb/s] [eta 00m:00s]
Threads: 2: [_VV] [100.0% done] [ 37132/     0 kb/s] [eta 00m:00s]
Threads: 2: [_VV] [100.0% done] [ 30184/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=21103
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.4%, 2=95.2%, 4=4.1%, 8=0.2%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=95.0%, 4=3.0%, 10=0.9%, 20=0.5%, 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=21104
  read : io=100MiB, bw=5,020KiB/s, runt= 20886msec
    clat (msec): min=    0, max=  327, avg=28.71, stdev=51.12
    bw (KiB/s) : min=   17, max=25976, per=150.90%, avg=14965.17, stdev=8402.55
  write: io=100MiB, bw=7,178KiB/s, runt= 14608msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=   23, avg= 0.67, stdev= 1.68
    bw (KiB/s) : min=    0, max=70049, per=218.44%, avg=46546.67, stdev=40311.25
  cpu          : usr=6.03%, sys=2.07%, ctx=4828
  IO depths    : 1=1.5%, 2=56.9%, 4=31.6%, 8=10.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=43.9%, 4=6.4%, 10=22.4%, 20=15.0%, 50=5.7%, 100=0.8%
     lat (msec): 250=5.0%, 500=0.6%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=21105
  read : io=100MiB, bw=4,958KiB/s, runt= 21145msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  787, avg=50.48, stdev=104.03
    bw (KiB/s) : min=   14, max=29175, per=80.03%, avg=7936.91, stdev=9371.12
  write: io=99,208KiB, bw=6,958KiB/s, runt= 14600msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  731, avg= 4.78, stdev=40.06
    bw (KiB/s) : min=    0, max=71426, per=88.84%, avg=18931.33, stdev=27223.48
  cpu          : usr=5.77%, sys=2.04%, ctx=4913
  IO depths    : 1=1.3%, 2=53.9%, 4=31.6%, 8=13.3%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=42.2%, 4=6.1%, 10=19.7%, 20=14.4%, 50=8.0%, 100=0.7%
     lat (msec): 250=5.4%, 500=2.8%, 750=0.5%, 1000=0.1%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=200MiB, aggrb=9,917KiB/s, minb=0KiB/s, maxb=5,020KiB/s, mint=20886msec, maxt=21145msec
  WRITE: io=297MiB, aggrb=21,309KiB/s, minb=0KiB/s, maxb=7,178KiB/s, mint=20886msec, maxt=21145msec

Disk stats (read/write):
  sda: ios=2049/2514, merge=602/73479, ticks=43736/1887648, in_queue=1931392, util=96.09%
3.44user 1.25system 0:21.49elapsed 21%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2487minor)pagefaults 0swaps