Hello,

I am confused by reading around about balloon and different hypervisors.
In KVM, I can handle the balloon manually using the qemu monitor (or libvirt) commands. This has a direct effect in the guest as its memory will increase or decrease accordingly (like hot adding/removing memory).

From what I read in some papers, I understand that VMware ESXi and XEN can handle ballooning automatically but I can't find many references about how it works in KVM.

Can someone please clarify briefly how ballooning works in KVM?

Thank you,

Regards,
Vangelis