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At our April, 2006 joint meeting with the Front Range
Open Solaris Users Group, co-sponsored by the CU
Computer Science Department, Stu Maybee of Sun Microsystems
discussed the University of Cambridge's Xen hypervisor
software. Stu discussed the distinction between
hypervisors that provide full virtualization, where
the OS doesn't know that its running in a virtual
machine environment, and paravirtualization, where
the operating system is modified to run in the
virtual machine environment. With the operating system
aware of the environment in which it's running, the
hypervisor doesn't have to play as many virtualization
tricks, and therefore the overall performance should
be better than in a fully virtualized environment.
Stu's presentation slides are here (672K pdf).
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