GitHub user weizhouapache added a comment to the discussion: Degraded 
cloudstack agent


> 
> One thing i noticed when looking into the java process in htop is, 5 or 6 
> java process in our production cluster have a high CPU time for example on 
> one of our compute host about 4 process have a CPU time value of around 
> 53:54:30. Is this normal?
> 

cool, thanks for sharing @TadiosAbebe 

I just checked my kvm host with libvirt 10.0.0 (running 36 hours without touch)
- the CPU usage of java process has increased to 30.6%
- It took 0.5 seconds to process GetVncPortCommand and return GetVncPortAnswer
- There is indeed a java thread which CPU time is 40 hours (41:00:93)

On the kvm host with libvirt 10.6.0 (running 24 hours without touch)
- the CPU usage of java process is still 0.5%
- It took 0.004 seconds to process GetVncPortCommand and return GetVncPortAnswer
- The most CPU time of java threads is 1 hour (1:08:12)

> If i restart libvirtd and the CPU time of the java process those process with 
> high CPU time goes away and the max becomes 0:05:26
> 
> I'll replace the libvirt with 10.6.0 on the all-in-one instance and see what 
> changes now.

I believe libvirt 10.6.0 is a worthwhile version to test, even though its 
official packages target Ubuntu 24.10 rather than Ubuntu 24.04.
cc @poli1025 @shwstppr @marekhorecny @vgarcia-linube @jgotteswinter @bradh352 
@SviridoffA @TadiosAbebe 


GitHub link: 
https://github.com/apache/cloudstack/discussions/12450#discussioncomment-15515844

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