Excessive memory usage ~~

[scsc1982]

Launching proxmox started only one virtual machine and allocated only 10 G of memory, but the entire system was already using 32 G, and I don't know where the extra memory went.



Boot ZFS Morris 2 hard drives.It says that ZFS eats up memory, but not that much.

 

[Dominic]

What can you see if you sort your processes by memory usage, something like ps aux --sort -rss? The kvm processes in your host need a little more memory than your guest has available (overhead).

 

[scsc1982]

What can you see if you sort your processes by memory usage, something like ps aux --sort -rss? The kvm processes in your host need a little more memory than your guest has available (overhead).

Dear,

Thank you very much for your help.
1,I found that pause's KVM also consumes memory, unlike EXSI's virtual machine.
2,When I turned on 2 KVMS, I only configured 18G memory, but actually used 24G+. Is that normal?

1,

2,

 

[Dominic]

2,When I turned on 2 KVMS, I only configured 18G memory, but actually used 24G+. Is that normal?

If you look at the output of ps and calculate a bit
(0.156+0.14)*64=18.9 or
9251336/1024/1024 + 10275024/1024/1024 = 18.6
you see that the two KVM processes use about 19 GB of your memory.

 

[scsc1982]

If you look at the output of ps and calculate a bit
(0.156+0.14)*64=18.9 or
9251336/1024/1024 + 10275024/1024/1024 = 18.6
you see that the two KVM processes use about 19 GB of your memory.

So nice~
I understand your reply.
There is also small question

1,24G memory in use, KVM use18.6G, the rest is used by PVE server, right?
2,Suspended KVM also takes up memory, right?

 

[Dominic]

Where did you take the 1.24G from?

 

[scsc1982]

Where did you take the 1.24G from?

Sorry my mistake

I mean:
1. 24G memory in use, KVM use18.6G, 5.4G used by PVE server, right?
2. Suspended KVM also takes up memory, right?

 

[Dominic]

1. Sort of. You can, for example, see the usage of the service daemons in the previous output as well.
2. Depends. Suspend can also be to disk.

 

[scsc1982]

1. Sort of. You can, for example, see the usage of the service daemons in the previous output as well.
2. Depends. Suspend can also be to disk.

So excellent ~

To solve a problem that has been bothering me for a long time.

Thank you for your help