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] [8.8% done] [  1694/   707 kb/s] [eta 00m:31s]
Threads: 3: [FFm] [10.3% done] [  1978/     0 kb/s] [eta 00m:35s]
Threads: 3: [FFm] [11.4% done] [  1702/     0 kb/s] [eta 00m:39s]
Threads: 3: [FFm] [12.8% done] [  1452/   980 kb/s] [eta 00m:41s]
Threads: 3: [FFm] [14.0% done] [  2056/     0 kb/s] [eta 00m:43s]
Threads: 3: [VFm] [36.4% done] [ 20853/ 32105 kb/s] [eta 00m:14s]
Threads: 3: [VFm] [36.0% done] [ 35084/     0 kb/s] [eta 00m:16s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=20100, got signal=6
Threads: 2: [VF_] [100.0% done] [ 25252/ 47116 kb/s] [eta 00m:00s]
Threads: 2: [VV_] [68.8% done] [ 20868/     0 kb/s] [eta 00m:05s]
Threads: 1: [_V_] [80.0% done] [ 19600/     0 kb/s] [eta 00m:03s]
Threads: 1: [_V_] [92.9% done] [ 17684/     0 kb/s] [eta 00m:01s]
Threads: 1: [_V_] [100.0% done] [ 14548/     0 kb/s] [eta 00m:00s]
Threads: 1: [_V_] [100.0% done] [  7988/     0 kb/s] [eta 00m:00s]
Threads: 1: [_V_] [100.0% done] [ 24312/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=20098
  read : io=100MiB, bw=9,314KiB/s, runt= 11257msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  368, avg=20.61, stdev=33.31
    bw (KiB/s) : min=    0, max=39018, per=134.15%, avg=18375.20, stdev=13783.54
  write: io=99,844KiB, bw=14,152KiB/s, runt=  7224msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=   95, avg= 0.50, stdev= 4.54
    bw (KiB/s) : min=    0, max=61164, per=112.82%, avg=30582.00, stdev=43249.48
  cpu          : usr=7.11%, sys=4.30%, ctx=4556
  IO depths    : 1=1.0%, 2=54.5%, 4=31.9%, 8=12.5%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=49.8%, 4=1.6%, 10=19.7%, 20=16.7%, 50=7.9%, 100=2.0%
     lat (msec): 250=2.1%, 500=0.2%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=20099
  read : io=100MiB, bw=6,186KiB/s, runt= 16949msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  519, avg=30.21, stdev=44.63
    bw (KiB/s) : min=   10, max=29540, per=104.15%, avg=14266.00, stdev=9176.87
  write: io=97,936KiB, bw=9,543KiB/s, runt= 10508msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  146, avg= 0.58, stdev= 6.09
    bw (KiB/s) : min=    0, max=133865, per=246.93%, avg=66932.50, stdev=94656.85
  cpu          : usr=4.63%, sys=2.95%, ctx=5334
  IO depths    : 1=1.8%, 2=55.2%, 4=31.3%, 8=11.7%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=49.5%, 4=0.6%, 10=20.4%, 20=9.7%, 50=10.3%, 100=6.4%
     lat (msec): 250=2.6%, 500=0.3%, 750=0.1%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=20100
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=85.3%, 4=3.3%, 8=11.3%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=86.1%, 4=0.4%, 10=0.0%, 20=0.1%, 50=0.1%, 100=1.8%
     lat (msec): 250=4.2%, 500=3.1%, 750=3.0%, 1000=0.9%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=221MiB, aggrb=13,698KiB/s, minb=0KiB/s, maxb=9,314KiB/s, mint=0msec, maxt=16949msec
  WRITE: io=272MiB, aggrb=27,106KiB/s, minb=0KiB/s, maxb=14,152KiB/s, mint=0msec, maxt=16949msec

Disk stats (read/write):
  sda: ios=2117/1576, merge=970/65528, ticks=38368/1626136, in_queue=2094900, util=99.09%
2.25user 1.40system 0:17.43elapsed 20%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2471minor)pagefaults 0swaps