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
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=4086, got signal=6
fio: pid=4087, got signal=6
Threads: 1
Threads: 1: [__m] [75.0% done] [  8232/ 12536 kb/s] [eta 00m:01s]
Threads: 1: [__F] [100.0% done] [     0/  8752 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: [__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] [79.2% done] [ 15372/     0 kb/s] [eta 00m:05s]
Threads: 1: [__V] [100.0% done] [ 30049/     0 kb/s] [eta 00m:00s]
Threads: 1: [__V] [100.0% done] [ 29332/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=4086
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=1.7%, 2=84.6%, 4=11.2%, 8=2.6%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=82.5%, 4=2.3%, 10=4.8%, 20=7.0%, 50=1.8%, 100=0.6%
     lat (msec): 250=0.7%, 500=0.1%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=4087
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=2.5%, 2=84.9%, 4=8.8%, 8=3.8%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=83.3%, 4=1.7%, 10=6.4%, 20=4.9%, 50=0.8%, 100=1.3%
     lat (msec): 250=1.4%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=4088
  read : io=100MiB, bw=4,798KiB/s, runt= 21851msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  257, avg=26.63, stdev=31.85
    bw (KiB/s) : min=   13, max=34396, per=299.39%, avg=15304.62, stdev=12468.11
  write: io=82,636KiB, bw=4,543KiB/s, runt= 18624msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=   39, avg= 0.42, stdev= 2.34
    bw (KiB/s) : min=    0, max=20393, per=66.08%, avg=10196.50, stdev=14420.03
  cpu          : usr=13.22%, sys=5.77%, ctx=4366
  IO depths    : 1=3.0%, 2=52.2%, 4=29.2%, 8=15.5%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=44.7%, 4=0.2%, 10=21.5%, 20=9.6%, 50=16.5%, 100=5.2%
     lat (msec): 250=2.1%, 500=0.1%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=107MiB, aggrb=5,112KiB/s, minb=0KiB/s, maxb=4,798KiB/s, mint=21851msec, maxt=21851msec
  WRITE: io=274MiB, aggrb=15,431KiB/s, minb=0KiB/s, maxb=4,543KiB/s, mint=21851msec, maxt=21851msec

Disk stats (read/write):
  sda: ios=965/3601, merge=2977/66324, ticks=29564/2148940, in_queue=2180456, util=95.35%
9.12user 2.74system 0:22.27elapsed 53%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2488minor)pagefaults 0swaps