paging - Definition. Was ist paging
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Was (wer) ist paging - definition

MEMORY MANAGEMENT SCHEME BY WHICH A COMPUTER STORES AND RETRIEVES DATA FROM SECONDARY STORAGE FOR USE IN MAIN MEMORY
386SPART.PAR; WIN386.SWP; Swap file; Swap partition; Swap space; Memory swapping; Swapfile; Page file; Paging file; Page File; Pagefile.sys; Paging space; Swap memory; Page file usage; File page; Pagefile; Swapspace; Paged memory; Page in; Page out; Pageable memory; Page swapping; Page swapping memory; Page memory; Swap disk; Swap volume; Sharing in paging system; Swappiness; Swapping (memory management); Linux swap; Swap death; Swapdeath; Swapping (computing); Paging

paging         
<operating system> A technique for increasing the memory space available by moving infrequently-used parts of a program's working memory from RAM to a secondary storage medium, usually hard {disk. The unit of transfer is called a page. A memory management unit (MMU) monitors accesses to memory and splits each address into a page number (the most significant bits) and an offset within that page (the lower bits). It then looks up the page number in its page table. The page may be marked as paged in or paged out. If it is paged in then the memory access can proceed after translating the virtual address to a physical address. If the requested page is paged out then space must be made for it by paging out some other page, i.e. copying it to disk. The requested page is then located on the area of the disk allocated for "swap space" and is read back into RAM. The page table is updated to indicate that the page is paged in and its physical address recorded. The MMU also records whether a page has been modified since it was last paged in. If it has not been modified then there is no need to copy it back to disk and the space can be reused immediately. Paging allows the total memory requirements of all running tasks (possibly just one) to exceed the amount of {physical memory}, whereas swapping simply allows multiple processes to run concurrently, so long as each process on its own fits within physical memory. (1996-11-22)
Paging         
·noun The marking or numbering of the pages of a book.
II. Paging ·p.pr. & ·vb.n. of Page.
page out         
<storage, architecture> What a paging system does when it copies part of a task's working memory from RAM to {swap space} on disk. [Jargon File] (1995-01-23)

Wikipedia

Memory paging

In computer operating systems, memory paging (or swapping on some Unix-like systems) is a memory management scheme by which a computer stores and retrieves data from secondary storage for use in main memory. In this scheme, the operating system retrieves data from secondary storage in same-size blocks called pages. Paging is an important part of virtual memory implementations in modern operating systems, using secondary storage to let programs exceed the size of available physical memory.

For simplicity, main memory is called "RAM" (an acronym of random-access memory) and secondary storage is called "disk" (a shorthand for hard disk drive, drum memory or solid-state drive, etc.), but as with many aspects of computing, the concepts are independent of the technology used.

Depending on the memory model, paged memory functionality is usually hardwired into a CPU/MCU by using a Memory Management Unit (MMU) or Memory Protection Unit (MPU) and separately enabled by privileged system code in the operating system's kernel. In CPUs implementing the x86 instruction set architecture (ISA) for instance, the memory paging is enabled via the CR0 control register.

Beispiele aus Textkorpus für paging
1. Paging readers Patricia Cornwell‘s new novel, "At Risk" (Putnam), comes out Tuesday.
2. In future they are to be used only as a back–up should the paging system fail.
3. Paging readers Harlan Coben‘s new novel, "Promise Me" (Dutton), comes out Tuesday.
4. My days of paging through furniture and design catalogs for new, spectacular ideas have ended.
5. EW Grade: C ‘All the Way,‘ Etta James Reviewed by Raymond Fiore Paging Joe Henry!