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
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=19706, got signal=6
Threads: 2: [m_F] [27.3% done] [  1472/  9552 kb/s] [eta 00m:08s]
Threads: 2: [m_F] [28.6% done] [   591/     0 kb/s] [eta 00m:10s]
Threads: 2: [m_F] [29.4% done] [  1376/     0 kb/s] [eta 00m:12s]
Threads: 2: [m_F] [30.0% done] [   632/     0 kb/s] [eta 00m:14s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
Threads: 2: [m_V] [46.7% done] [  1652/ 23128 kb/s] [eta 00m:08s]
fio: pid=19707, got signal=6
Threads: 1: [F__] [100.0% done] [   492/ 33100 kb/s] [eta 00m:00s]
Threads: 1: [F__] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 1: [F__] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 1: [F__] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 1: [F__] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 1: [F__] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 1: [F__] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 1: [F__] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 1: [V__] [80.0% done] [ 16780/     0 kb/s] [eta 00m:04s]
Threads: 1: [V__] [100.0% done] [ 36056/     0 kb/s] [eta 00m:00s]
Threads: 1: [V__] [100.0% done] [ 36736/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=19705
  read : io=100MiB, bw=5,654KiB/s, runt= 18544msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max= 1045, avg=44.11, stdev=125.42
    bw (KiB/s) : min=    5, max=40488, per=171.33%, avg=10290.21, stdev=15190.80
  write: io=90,256KiB, bw=5,837KiB/s, runt= 15832msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  329, avg= 1.42, stdev=15.01
    bw (KiB/s) : min=    0, max=17014, per=40.26%, avg=7514.33, stdev=8679.01
  cpu          : usr=5.11%, sys=2.31%, ctx=4533
  IO depths    : 1=1.9%, 2=54.4%, 4=30.3%, 8=13.4%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=43.8%, 4=4.2%, 10=25.8%, 20=14.7%, 50=6.0%, 100=0.8%
     lat (msec): 250=1.3%, 500=2.3%, 750=0.3%, 1000=0.4%, >=2000=0.2%
fio: (groupid=0): err= 0: pid=19706
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=93.9%, 4=2.7%, 8=3.1%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=87.7%, 4=7.0%, 10=0.8%, 20=0.3%, 50=0.2%, 100=0.7%
     lat (msec): 250=2.8%, 500=0.3%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=19707
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.8%, 2=95.0%, 4=2.6%, 8=1.5%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=94.6%, 4=2.4%, 10=0.2%, 20=0.2%, 50=0.0%, 100=0.4%
     lat (msec): 250=1.4%, 500=0.4%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=106MiB, aggrb=6,006KiB/s, minb=0KiB/s, maxb=5,654KiB/s, mint=0msec, maxt=18544msec
  WRITE: io=282MiB, aggrb=18,665KiB/s, minb=0KiB/s, maxb=5,837KiB/s, mint=0msec, maxt=18544msec

Disk stats (read/write):
  sda: ios=1299/2830, merge=472/69158, ticks=19000/1945328, in_queue=1965456, util=95.99%
2.78user 1.02system 0:19.09elapsed 19%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2489minor)pagefaults 0swaps