about IO delay

[haiwan]

About IO delay.
how to check this delay time is normal?
we check my io delay time 2%-6%

 

[Chris]

Hi,
this thread might be of interest for you https://forum.proxmox.com/threads/io-delays.783/

 

[haiwan]

thank

Hi,
this thread might be of interest for you https://forum.proxmox.com/threads/io-delays.783/

thanks Chris.
i have a trouble need you help me sure.
we no use raid, just use HBA card direct HDD Disk.
now we show a little date you see
root@pve20:~# pveperf
CPU BOGOMIPS: 127721.60
REGEX/SECOND: 1461682
HD SIZE: 27.19 GB (/dev/mapper/pve-root)
BUFFERED READS: 153.96 MB/sec
AVERAGE SEEK TIME: 0.20 ms
FSYNCS/SECOND: 473.61
DNS EXT: 104.22 ms
DNS INT: 139.32 ms (xnsla.com)

 

[haiwan]

root@pve140:~# pveperf
CPU BOGOMIPS: 192018.20
REGEX/SECOND: 1677457
HD SIZE: 93.99 GB (/dev/mapper/pve-root)
BUFFERED READS: 488.50 MB/sec
AVERAGE SEEK TIME: 0.13 ms
FSYNCS/SECOND: 153.79
DNS EXT: 81.33 ms
DNS INT: 146.05 ms (xnsla.com)

 

[Chris]

You should check which process / VM / CT is causing the io delays.
You will have to follow steps like these to find out what is going on https://bencane.com/2012/08/06/troubleshooting-high-io-wait-in-linux/

 

[haiwan]

You should check which process / VM / CT is causing the io delays.
You will have to follow steps like these to find out what is going on https://bencane.com/2012/08/06/troubleshooting-high-io-wait-in-linux/

ths, but we still no understand.