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: [FmF] [37.5% done] [  3544/ 80100 kb/s] [eta 00m:05s]
Threads: 3: [FmF] [40.0% done] [   960/     0 kb/s] [eta 00m:06s]
Threads: 3: [FmF] [38.5% done] [   516/   480 kb/s] [eta 00m:08s]
Threads: 3: [FmF] [40.0% done] [   872/     0 kb/s] [eta 00m:09s]
Threads: 3: [FmF] [46.7% done] [  1140/  9188 kb/s] [eta 00m:08s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=25051, got signal=6
Threads: 2: [F_F] [100.0% done] [     0/ 32784 kb/s] [eta 00m:00s]
Threads: 2: [F_F] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [F_F] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [F_F] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [F_F] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [F_F] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [F_F] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 1: [V__] [75.0% done] [  7956/     0 kb/s] [eta 00m:05s]
Threads: 1: [V__] [94.1% done] [ 30968/     0 kb/s] [eta 00m:01s]
Threads: 1: [V__] [100.0% done] [ 36264/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=25050
  read : io=100MiB, bw=5,838KiB/s, runt= 17961msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  451, avg=20.47, stdev=46.99
    bw (KiB/s) : min=    0, max=39724, per=262.51%, avg=17538.36, stdev=17331.28
  write: io=93,928KiB, bw=6,343KiB/s, runt= 15163msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  271, avg= 1.59, stdev=14.30
    bw (KiB/s) : min=    0, max=34286, per=105.52%, avg=20220.67, stdev=17952.68
  cpu          : usr=4.45%, sys=2.56%, ctx=5269
  IO depths    : 1=2.9%, 2=56.5%, 4=29.7%, 8=10.9%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=48.1%, 4=1.7%, 10=29.1%, 20=12.7%, 50=4.7%, 100=1.3%
     lat (msec): 250=1.5%, 500=0.7%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=25051
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.4%, 2=88.5%, 4=2.6%, 8=8.6%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=88.2%, 4=0.5%, 10=0.4%, 20=0.5%, 50=0.4%, 100=0.7%
     lat (msec): 250=3.8%, 500=3.2%, 750=1.5%, 1000=0.5%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=25052
  read : io=0KiB, bw=0KiB/s, runt= 15216msec
  write: io=100MiB, bw=6,913KiB/s, runt= 15168msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=    5, avg= 0.21, stdev= 0.48
    bw (KiB/s) : min=    0, max=128983, per=336.56%, avg=64491.50, stdev=91204.75
  cpu          : usr=5.57%, sys=2.37%, ctx=4056
  IO depths    : 1=0.3%, 2=97.7%, 4=2.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=97.9%, 4=1.5%, 10=0.1%, 20=0.0%, 50=0.0%, 100=0.0%
     lat (msec): 250=0.0%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=114MiB, aggrb=6,681KiB/s, minb=0KiB/s, maxb=5,838KiB/s, mint=15216msec, maxt=17961msec
  WRITE: io=277MiB, aggrb=19,162KiB/s, minb=0KiB/s, maxb=6,913KiB/s, mint=15216msec, maxt=17961msec

Disk stats (read/write):
  sda: ios=1333/2533, merge=566/68169, ticks=20552/1961480, in_queue=1982628, util=96.72%
2.39user 1.07system 0:18.35elapsed 18%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2479minor)pagefaults 0swaps