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: [mmF] [37.5% done] [  4668/ 73120 kb/s] [eta 00m:05s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=1143, got signal=6
Threads: 2: [_FF] [100.0% done] [   484/ 83108 kb/s] [eta 00m:00s]
Threads: 2: [_FF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [_FF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [_FF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [_FF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [_FF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [_FF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [_FF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [_FF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [_FF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [_FF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [_FF] [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=1144, got signal=6
Threads: 1: [__V] [76.2% done] [ 14228/     0 kb/s] [eta 00m:05s]
Threads: 1: [__V] [100.0% done] [ 35208/     0 kb/s] [eta 00m:00s]
Threads: 1: [__V] [100.0% done] [ 38252/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=1143
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=91.7%, 4=3.0%, 8=5.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=90.4%, 4=2.7%, 10=0.8%, 20=0.2%, 50=0.2%, 100=0.8%
     lat (msec): 250=2.7%, 500=2.1%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=1144
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.4%, 2=87.7%, 4=3.8%, 8=8.1%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=88.7%, 4=0.7%, 10=0.6%, 20=0.1%, 50=0.6%, 100=1.9%
     lat (msec): 250=6.3%, 500=0.6%, 750=0.2%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=1145
  read : io=100MiB, bw=5,567KiB/s, runt= 18834msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  407, avg=19.25, stdev=44.24
    bw (KiB/s) : min=    1, max=40106, per=331.88%, avg=22687.44, stdev=17245.78
  write: io=97,856KiB, bw=6,405KiB/s, runt= 15644msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  223, avg= 0.85, stdev=10.31
    bw (KiB/s) : min=    0, max=123469, per=337.72%, avg=61734.50, stdev=87305.77
  cpu          : usr=4.08%, sys=1.93%, ctx=4661
  IO depths    : 1=1.4%, 2=55.9%, 4=31.7%, 8=10.9%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=49.5%, 4=0.8%, 10=23.9%, 20=18.5%, 50=4.5%, 100=0.8%
     lat (msec): 250=1.2%, 500=0.7%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=123MiB, aggrb=6,836KiB/s, minb=0KiB/s, maxb=5,567KiB/s, mint=18834msec, maxt=18834msec
  WRITE: io=273MiB, aggrb=18,280KiB/s, minb=0KiB/s, maxb=6,405KiB/s, mint=18834msec, maxt=18834msec

Disk stats (read/write):
  sda: ios=1532/2684, merge=658/66769, ticks=24884/1824452, in_queue=1860920, util=98.14%
2.24user 1.00system 0:19.15elapsed 16%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2487minor)pagefaults 0swaps