higher ram usage with ballooning enabled?

limone

Well-Known Member
Aug 1, 2017
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9
48
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Hi,

I just noticed something weird. I have two Linux VMs with 1GB RAM each, both with ballooning enabled. Both use almost 100% of their RAM (at least according to proxmox) (~900MB).
If I deactivate ballooning on both, the RAM usage drops to about 500MB (also according to proxmox).
As far as I understand it, ballooning is intended to return unused RAM to the host and not to use as much RAM as possible.

upload_2019-3-16_14-14-43.png

Did I configure anything wrong? Both use the QEMU agent.
And is there any way to reduce buff/cache consumption?

Thanks in advance :)
 

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