Sample video showing memory ballooning using Qemu and virtio-balloon module.

Image taken from: /redirect?v=gDYJ6XlVyvc&event=video_description&redir_token=-TeeRZLFv1767958mutoLL1bvGJ8MTU0MDM1NDIyNkAxNTQwMjY3ODI2&q=http%3A%2F%2Fdownload.fedoraproject.org%2Fpub%2Ffedora%2Flinux%2Fupdates%2F20%2FImages%2Fx86_64%2FFedora-x86_64-20-20140407-sda.qcow2

Command to launch guest: qemu-kvm -m 4G -hda Fedora-x86_64-20-20140407-sda.qcow2 -vnc :4 -net nic -net bridge,br=virbr0 -vga qxl -device virtio-balloon &

Press Alt+Ctrl+2 in the vnc console to enter QMP commands.

References:
/redirect?v=gDYJ6XlVyvc&event=video_description&redir_token=-TeeRZLFv1767958mutoLL1bvGJ8MTU0MDM1NDIyNkAxNTQwMjY3ODI2&q=http%3A%2F%2Faglitke.wordpress.com%2F2011%2F03%2F03%2Fautomatic-memory-ballooning-with-mom%2F
/redirect?v=gDYJ6XlVyvc&event=video_description&redir_token=-TeeRZLFv1767958mutoLL1bvGJ8MTU0MDM1NDIyNkAxNTQwMjY3ODI2&q=http%3A%2F%2Fwiki.libvirt.org%2Fpage%2FQEMUSwitchToLibvirt%23info_balloon
/redirect?v=gDYJ6XlVyvc&event=video_description&redir_token=-TeeRZLFv1767958mutoLL1bvGJ8MTU0MDM1NDIyNkAxNTQwMjY3ODI2&q=http%3A%2F%2Fwww.linux-kvm.org%2Fpage%2FProjects%2Fauto-ballooning

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