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] [10.7% done] [   960/102148 kb/s] [eta 00m:25s]
Threads: 3: [FFF] [100.0% done] [     0/ 86384 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]
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=5152, got signal=6
Threads: 2: [VV_] [70.0% done] [  7808/     0 kb/s] [eta 00m:06s]
Threads: 2: [VV_] [75.0% done] [ 35864/     0 kb/s] [eta 00m:05s]
Threads: 2: [VV_] [80.0% done] [ 29280/     0 kb/s] [eta 00m:04s]
Threads: 2: [VV_] [89.5% done] [ 34628/     0 kb/s] [eta 00m:02s]
Threads: 2: [VV_] [100.0% done] [ 32096/     0 kb/s] [eta 00m:00s]
Threads: 1: [V__] [100.0% done] [ 38408/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=5150
  read : io=100MiB, bw=5,245KiB/s, runt= 19990msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  702, avg=35.67, stdev=73.47
    bw (KiB/s) : min=    0, max=38359, per=112.93%, avg=12289.12, stdev=11148.86
  write: io=95,284KiB, bw=7,001KiB/s, runt= 13936msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  557, avg= 2.02, stdev=29.55
    bw (KiB/s) : min=    0, max=139411, per=327.66%, avg=69705.50, stdev=98578.46
  cpu          : usr=3.48%, sys=1.64%, ctx=4904
  IO depths    : 1=2.2%, 2=57.0%, 4=29.5%, 8=11.2%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=50.7%, 4=0.3%, 10=25.2%, 20=11.1%, 50=4.8%, 100=0.7%
     lat (msec): 250=5.5%, 500=1.2%, 750=0.3%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=5151
  read : io=100MiB, bw=5,469KiB/s, runt= 19106msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  519, avg=26.48, stdev=51.62
    bw (KiB/s) : min=   12, max=35651, per=156.02%, avg=16978.09, stdev=10160.57
  write: io=99,848KiB, bw=7,357KiB/s, runt= 13896msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  246, avg= 0.94, stdev=10.46
    bw (KiB/s) : min=    0, max=127893, per=300.59%, avg=63946.50, stdev=90434.01
  cpu          : usr=4.23%, sys=1.86%, ctx=4700
  IO depths    : 1=1.7%, 2=57.3%, 4=31.0%, 8=9.9%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=49.4%, 4=0.7%, 10=25.7%, 20=13.5%, 50=4.7%, 100=0.6%
     lat (msec): 250=4.5%, 500=0.6%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=5152
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.4%, 2=92.8%, 4=2.9%, 8=4.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=94.0%, 4=0.7%, 10=0.2%, 20=0.2%, 50=0.1%, 100=0.1%
     lat (msec): 250=2.2%, 500=1.2%, 750=0.2%, 1000=0.2%, >=2000=0.2%

Run status group 0 (all jobs):
   READ: io=207MiB, aggrb=10,882KiB/s, minb=0KiB/s, maxb=5,469KiB/s, mint=0msec, maxt=19990msec
  WRITE: io=283MiB, aggrb=21,274KiB/s, minb=0KiB/s, maxb=7,357KiB/s, mint=0msec, maxt=19990msec

Disk stats (read/write):
  sda: ios=2129/1783, merge=774/70456, ticks=47084/1687912, in_queue=1751520, util=98.13%
2.22user 1.10system 0:20.49elapsed 16%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2475minor)pagefaults 0swaps