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The theoretically optimal page replacement algorithm (also known as OPT, clairvoyant replacement algorithm, or Bélády's optimal page replacement policy) [3] [4] [2] is an algorithm that works as follows: when a page needs to be swapped in, the operating system swaps out the page whose next use will occur farthest in the future. For example, a ...
For example, Graph (c) is produced after page E is accessed on Graph (a). When there is a miss and a resident page has to be replaced, the resident HIR page at the bottom of Stack Q is selected as the victim for replacement. For example, Graphs (d) and (e) are produced after pages D and C are accessed on Graph (a), respectively.
This phenomenon is commonly experienced when using the first-in first-out page replacement algorithm. In FIFO, the page fault may or may not increase as the page frames increase, but in optimal and stack-based algorithms like LRU, as the page frames increase, the page fault decreases. László Bélády demonstrated this in 1969. [1]
Once you have made the template—for example Template:foo—you can add {{foo}} to the pages that you want to use it on. Every page using this template uses the same boilerplate text each time that a user visits it. When the template is updated, all pages containing the template tag are automatically updated.
Changes to it can cause immediate changes to the Wikipedia user interface. To avoid major disruption and server load, any changes should be tested in the template's /sandbox or /testcases subpages, or in your own user subpage. The tested changes can be added to this page in a single edit. Please discuss changes on the talk page before ...
Page Example; Removing all content on a page, resulting in an empty page with no content (criteria: new page size of 0 bytes) MediaWiki:Autosumm-blank: ←Blanked the page Removing nearly all content on a page, and possibly replacing it with new content (criteria: at least 90% of original content removed, and a new page size not exceeding 1,000 ...
This Manual of Style (MoS or MOS) is the style manual for all English Wikipedia articles (though provisions related to accessibility apply across the entire project, not just to articles). This primary page is supported by further detail pages, which are cross-referenced here and listed at Wikipedia:Manual of Style/Contents. If any ...
On Wikipedia, a page can usually be renamed if the already existing title is incorrect or needs to be changed; this is called moving a page.A page may also be moved to another namespace without changing the base title—for example, a userspace draft may be moved to article space.