Category Archives: MOM

Use the Qemu guest agent with Memory Overcommitment Manager

Qemu now has an official guest agent. Programs on a KVM host can now talk to guests using a virtual hardware channel (either virtio-serial or an emulated ISA serial port). Using this mechanism, it is now possible to reliably power … Continue reading

Posted in KVM, libvirt, MOM, qemu | 37 Comments

Automatic Memory Ballooning with MOM

In this post, I will describe how to use Memory Overcommitment Manager (MOM) to automatically manage memory ballooning on a KVM host. Memory ballooning is a virtualization feature that allows youto apply a “soft” memory limit to your virtual machines. … Continue reading

Posted in libvirt, MOM | 24 Comments