There are many benefits of server virtualization that apply to many different types of environments, including middleware application environments.

服务器虚拟化有很多优势，适用于很多不同类型环境，包括中间件应用程序环境。

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As you can see in Figure 4, application and server virtualization deliver distinct benefits with some overlap.

正如您在图4中所看到的，应用程序和服务器虚拟化提供的优势有明显的重叠。

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In fact, a combination of both server virtualization and application virtualization provide a number of benefits that you will likely require from your cloud computing environment.

事实上，服务器虚拟化和应用程序虚拟化的组合提供了很多优势，您的云计算环境可能会需要。

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But if you take into account the use of open source products like Xen and KVM in massive data centers, web server farms, and by web application providers like Google and Salesforce.com, the CPUs running open source virtualization likely dwarfs the commercial market.

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