Can we tune memory ballooning to start higher then 80% host usage?

Helmo

Well-Known Member
Jan 11, 2018
31
3
48
On a Proxmox host I noticed that memory ballooning kicks in when the host is reaching 80% capacity on it's RAM. This was confirmed in the docs.

Is there a setting to tune that?

On a 128GB machine it feels not ok to take memory from a guest when the host still has 25GB free.

The 'free' space is used for caching of course ... but it seems a bit much.
 
no the autoballooning is done by one of our daemons (pvestatd) and this limit is hardcoded at the moment
 

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