root@tans-nas:/home/admin# fio --name=seq_write_nocache --directory=/vol3 --size=10G --ioengine=libaio \
--direct=1 --rw=write --bs=1M --numjobs=1 --runtime=60 --group_reporting
seq_write_nocache: (g=0): rw=write, bs=(R) 1024KiB-1024KiB, (W) 1024KiB-1024KiB, (T) 1024KiB-1024KiB, ioengine=libaio, iodepth=1
seq_write_nocache: Laying out IO file (1 file / 10240MiB)
Jobs: 1 (f=1): [W(1)][100.0%][w=128MiB/s][w=128 IOPS][eta 00m:00s]
seq_write_nocache: (groupid=0, jobs=1): err= 0: pid=18378: Sun Aug 31 17:00:35 2025
write: IOPS=110, BW=110MiB/s (115MB/s)(6608MiB/60004msec); 0 zone resets
slat (usec): min=276, max=23229, avg=903.02, stdev=384.60
clat (usec): min=1446, max=552717, avg=8168.38, stdev=18061.87
lat (msec): min=2, max=567, avg= 9.07, stdev=18.12
clat percentiles (usec):
| 1.00th=[ 1893], 5.00th=[ 2311], 10.00th=[ 2409], 20.00th=[ 2573],
| 30.00th=[ 2835], 40.00th=[ 3032], 50.00th=[ 3228], 60.00th=[ 5014],
| 70.00th=[ 6259], 80.00th=[ 10159], 90.00th=[ 15926], 95.00th=[ 20317],
| 99.00th=[ 88605], 99.50th=[105382], 99.90th=[256902], 99.95th=[312476],
bw ( KiB/s): min= 2048, max=178176, per=99.53%, avg=112244.17, stdev=27633.25, samples=119
iops : min= 2, max= 174, avg=109.61, stdev=26.99, samples=119
lat (msec) : 2=1.59%, 4=55.34%, 10=22.91%, 20=15.04%, 50=3.37%
lat (msec) : 100=1.03%, 250=0.61%, 500=0.09%, 750=0.02%
cpu : usr=0.85%, sys=9.47%, ctx=6716, majf=0, minf=11
IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=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=0.0%, 64=0.0%, >=64=0.0%
issued rwts: total=0,6608,0,0 short=0,0,0,0 dropped=0,0,0,0
latency : target=0, window=0, percentile=100.00%, depth=1
Run status group 0 (all jobs):
WRITE: bw=110MiB/s (115MB/s), 110MiB/s-110MiB/s (115MB/s-115MB/s), io=6608MiB (6929MB), run=60004-60004msec