• kernel module
• live migration
• virtualization
• ebpf
• qemu
• kvm
• kernel driver

Nowadays Virtual Machines are largely used for both private and business
purposes. It is often common to perform a live migration of the
Guest environment to another Virtual Machine, in order to upgrade,
repair or maintain the physical machine where the Virtual Machine
is hosted. Performing the migration in the most efficient way is a strict requirement, since long downtime periods of a service are highly
unwanted,even from the economic point of view since they can be very costly. In
this thesis work, our goal is to speed up the live migration execution time
by reducing the amount of memory to be transferred. Avoiding to copy the
unused Guest memory during this process made the live migration several
times faster.