fio -filename=/data/test5.file.fio -sync=1 -rw=randwrite -bssplit=512/10:1k/5:2k/5:4k/60:8k/2:16k/4:32k/4:64k/10  -numjobs=1 -iodepth=32 --ioengine=libaio -runtime=600 -size=1m -time_based -group_reporting -name=journal-test
journal-test: (g=0): rw=randwrite, bs=(R) 512B-64.0KiB, (W) 512B-64.0KiB, (T) 512B-64.0KiB, ioengine=libaio, iodepth=32
fio-3.1
Starting 1 process
Jobs: 1 (f=1): [w(1)][100.0%][r=0KiB/s,w=4988KiB/s][r=0,w=974 IOPS][eta 00m:00s]
journal-test: (groupid=0, jobs=1): err= 0: pid=62788: Wed Nov 13 15:28:03 2019
  write: IOPS=918, BW=5316KiB/s (5444kB/s)(3115MiB/600001msec)
    slat (usec): min=181, max=202403, avg=1083.74, stdev=1025.48
    clat (usec): min=6, max=245167, avg=33761.22, stdev=6928.61
     lat (usec): min=1408, max=246493, avg=34845.24, stdev=7058.30
    clat percentiles (msec):
     |  1.00th=[   24],  5.00th=[   27], 10.00th=[   29], 20.00th=[   31],
     | 30.00th=[   32], 40.00th=[   33], 50.00th=[   34], 60.00th=[   35],
     | 70.00th=[   36], 80.00th=[   37], 90.00th=[   40], 95.00th=[   41],
     | 99.00th=[   43], 99.50th=[   44], 99.90th=[   92], 99.95th=[  232],
     | 99.99th=[  241]
   bw (  KiB/s): min= 2555, max= 7142, per=100.00%, avg=5328.24, stdev=571.40, samples=1200
   iops        : min=  421, max= 1062, avg=919.65, stdev=62.38, samples=1200
  lat (usec)   : 10=0.01%
  lat (msec)   : 2=0.01%, 4=0.01%, 10=0.01%, 20=0.04%, 50=99.68%
  lat (msec)   : 100=0.20%, 250=0.08%
  cpu          : usr=0.54%, sys=9.53%, ctx=2636987, majf=0, minf=3710
  IO depths    : 1=0.1%, 2=0.1%, 4=0.1%, 8=0.1%, 16=0.1%, 32=100.0%, >=64=0.0%
     submit    : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
     complete  : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.1%, 64=0.0%, >=64=0.0%
     issued rwt: total=0,550920,0, short=0,0,0, dropped=0,0,0
     latency   : target=0, window=0, percentile=100.00%, depth=32

Run status group 0 (all jobs):
  WRITE: bw=5316KiB/s (5444kB/s), 5316KiB/s-5316KiB/s (5444kB/s-5444kB/s), io=3115MiB (3266MB), run=600001-600001msec

Disk stats (read/write):
    dm-4: ios=125/2633275, merge=0/0, ticks=36/529032, in_queue=529171, util=88.39%, aggrios=127/2633293, aggrmerge=0/0, aggrticks=36/558286, aggrin_queue=557331, aggrutil=93.08%
    dm-3: ios=127/2633293, merge=0/0, ticks=36/558286, in_queue=557331, util=93.08%, aggrios=15/329161, aggrmerge=0/0, aggrticks=4/62226, aggrin_queue=62174, aggrutil=10.77%
  sdn: ios=19/329158, merge=0/0, ticks=3/64111, in_queue=64053, util=10.70%
  sdo: ios=21/329156, merge=0/0, ticks=3/64336, in_queue=64274, util=10.74%
  sdp: ios=21/329157, merge=0/0, ticks=0/60139, in_queue=60077, util=10.03%
  sdq: ios=10/329168, merge=0/0, ticks=1/59651, in_queue=59591, util=9.95%
  sdad: ios=16/329162, merge=0/0, ticks=3/64551, in_queue=64489, util=10.77%
  sdae: ios=18/329160, merge=0/0, ticks=4/60373, in_queue=60327, util=10.08%
  sdaf: ios=10/329167, merge=0/0, ticks=6/64040, in_queue=63993, util=10.69%
  sdag: ios=12/329165, merge=0/0, ticks=14/60613, in_queue=60588, util=10.12%