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informIT: The Need for Virtualization and Xen

“‘Computers are never fast enough.’ That used to be the mantra
of computer users everywhere. Then, CPU manufacturers hit the 1GHz
barrier and, for most users, it stopped being true. Unless you are
playing the latest games, performing scientific computation,
editing video, or running a high-volume server for dynamic data,
modern machines have far more power than what you need.

“Most interestingly, this is even true of a lot of server
workloads. An SME’s web server load, for example, could easily be
handled on a 5- to 10-year-old machine…”

Complete
Story