Virtualization soft ware is being aggressively deployed to reduce the costs of managing today’s high performance servers. Companies like VMWare, Microsoft and IBM have all developed a range of virtualization products. Th e general concept, described in Chapter 5, is that a hypervisor layer can be introduced between the hardware and the operating system to allow multiple operating systems to share the same physical hardware. Th e hypervisor layer is then responsible for allocating CPU and memory resources, as well as handling services typically handled by the operating system (e.g., I/O).Virtualization provides an abstract view of the underlying hardware to the hosted operating system and application soft ware. Th is will require us to rethink how multi-core and multiprocessor systems will be designed in the future to support the sharing of CPUs and memories by a number of operating systems concurrently.> Select two hypervisors on the market today, and compare and contrast how they virtualize and manage the underlying hardware (CPUs and memory).> Discuss what changes may be necessary in future multi-core CPU platforms in order to better match the resource demands placed on these systems. For instance, can multithreading play an eff ective role in alleviating the competition for computing resources?
Virtualization soft ware is being aggressively deployed to reduce the costs of managing today’s high performance servers. Companies like VMWare, Microsoft and IBM have all developed a range of virtualization products. Th e general concept, described in Chapter 5, is that a hypervisor layer can be introduced between the hardware and the operating system to allow multiple operating systems to share the same physical hardware. Th e hypervisor layer is then responsible for allocating CPU and memory resources, as well as handling services typically handled by the operating system (e.g., I/O).
Virtualization provides an abstract view of the underlying hardware to the hosted operating system and application soft ware. Th is will require us to rethink how multi-core and multiprocessor systems will be designed in the future to support the sharing of CPUs and memories by a number of operating systems concurrently.
> Select two hypervisors on the market today, and compare and contrast how they virtualize and manage the underlying hardware (CPUs and memory).
> Discuss what changes may be necessary in future multi-core CPU platforms in order to better match the resource demands placed on these systems. For instance, can multithreading play an eff ective role in alleviating the competition for computing resources?
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