由于KVM虚拟机是常规进程，可以使用标准内存转换技术。
Because KVM virtual machines are regular processes, the standard memory conservation techniques apply.
进程的执行由底层虚拟机调度。
Process execution is scheduled by the underlying virtual machine.
如果跟文件有关的一个进程挂起了，那么这就会使虚拟机不能对该文件加锁。
If a process is hanging around that is holding onto the file, it will prevent the virtual machine from being able to get the lock on the file.
一些类型的元计算环境在今天会一直使用，但是通常意义上，一个云提供了一系列的虚拟机系统以及运行它们的管理进程。
Several types of cloud computing environments are in use today, but in general, a cloud provides a library of virtual systems and a hypervisor on which to run them.
每个进程都有自己的虚拟机，所以一个应用的代码执行是和别的应用分割开来的。
Each process has its own virtual machine (VM), so an application's code runs in isolation from other applications.
例如，GLASS系列产品目前可以让你将出错的进程保存到仓库中，然后迟些时候将它们放入一个本地的虚拟机中进行调试。
For example, the GLASS product currently lets you save processes that have encountered errors to the repository, and pull them later into a local VM for debugging.
还可以有相同的虚拟机备份，原先的进程有问题另外一个可以接上。
They can have an identical twin which takes over should the original fail.
还可以有相同的虚拟机备份，原先的进程有问题另外一个可以接上。
They can have an identical twin which takes over should the original fail.
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