What are demand-paging and pre-paging?

[lavyhair]

What are demand-paging and pre-paging?

[RH-Calvin]

In virtual memory systems, demand paging is a type of swapping in which pages of data are not copied from disk to RAM until they are needed.

Prepaging in Technology Expand. architecture. (Or "working set model") A technique whereby the operating system in a paging virtual memory multitasking environment loads all pages of a process's working set into memory before the process is restarted.

[Dam Ponting]

With request paging, a page is brought into memory just when an area on that page is really referenced amid execution. With pre-paging, pages other than the one requested by a page blame are acquired. The determination of such pages is done in view of regular access designs, particularly for auxiliary memory gadgets.