What is Virtual Memory and where can I get detailed information on its implementation in Red Hat Enterprise Linux?

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The concept behind Virtual Memory is using a disk as an extension of RAM so that the effective size of usable memory grows correspondingly. The kernel writes the contents of a currently unused block of memory to the hard disk so that the memory can be used for another purpose. When the original contents are needed again, they are read back into memory. This is all made completely ...

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