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: [mmm] [37.5% done] [  5241/119304 kb/s] [eta 00m:05s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=2005, got signal=6
Threads: 2: [m_F] [57.1% done] [  3612/ 49798 kb/s] [eta 00m:03s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=2004, got signal=6
Threads: 1: [__F] [100.0% done] [   239/ 24722 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] [70.8% done] [  5116/     0 kb/s] [eta 00m:07s]
Threads: 1: [__V] [94.7% done] [ 32904/     0 kb/s] [eta 00m:01s]
Threads: 1: [__V] [100.0% done] [ 36992/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=2004
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.3%, 2=87.0%, 4=2.3%, 8=10.4%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=83.6%, 4=3.9%, 10=0.6%, 20=0.2%, 50=0.3%, 100=3.8%
     lat (msec): 250=6.5%, 500=1.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=2005
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=89.5%, 4=2.5%, 8=7.8%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=85.0%, 4=5.0%, 10=0.6%, 20=0.5%, 50=0.8%, 100=2.2%
     lat (msec): 250=4.6%, 500=1.1%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=2006
  read : io=100MiB, bw=5,266KiB/s, runt= 19875msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  451, avg=24.76, stdev=51.44
    bw (KiB/s) : min=    4, max=39215, per=227.59%, avg=14718.33, stdev=15898.17
  write: io=92,644KiB, bw=5,660KiB/s, runt= 16760msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  159, avg= 0.84, stdev= 8.99
    bw (KiB/s) : min=    0, max=22468, per=67.08%, avg=11234.00, stdev=15887.28
  cpu          : usr=3.68%, sys=2.09%, ctx=6584
  IO depths    : 1=1.5%, 2=55.9%, 4=29.8%, 8=12.8%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=49.3%, 4=0.2%, 10=23.9%, 20=16.9%, 50=4.4%, 100=1.3%
     lat (msec): 250=3.2%, 500=0.5%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=123MiB, aggrb=6,467KiB/s, minb=0KiB/s, maxb=5,266KiB/s, mint=19875msec, maxt=19875msec
  WRITE: io=268MiB, aggrb=16,747KiB/s, minb=0KiB/s, maxb=5,660KiB/s, mint=19875msec, maxt=19875msec

Disk stats (read/write):
  sda: ios=1678/2948, merge=516/65168, ticks=22828/2107420, in_queue=2136684, util=98.08%
2.54user 0.94system 0:20.23elapsed 17%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2492minor)pagefaults 0swaps