Someone pointed out a shocking fact in LET that KVM, the new popular virtualization type, can be over-committed even more then the infamous OpenVZ
The KVM hypervisor supports overcommitting CPUs and overcommitting memory. Overcommitting is allocating more virtualized CPUs or memory than there are physical resources on the system. With CPU overcommit, under-utilized virtualized servers or desktops can run on fewer servers which saves power and money.
Read it all at docs.redhat.com
also read the complete thread at LET Is KVM the next oversold VPS? for more enlightenment
[…] Overcommitting with KVM […]