Skip to main content

buddy system

buddy system A method of implementing a memory management system. The available memory is partitioned into blocks whose sizes are always exact powers of two. A request for m bytes of memory is satisfied by allocating a block of size 2p+1 where 2p < m ← 2p+1

If no block of this size is available then a larger block is subdivided, more than once if necessary, until a block of the required size is generated. When memory is freed it is combined with a free adjacent block (if one exists) to produce a larger block, always preserving the condition that block sizes are exact powers of two.

Cite this article
Pick a style below, and copy the text for your bibliography.

  • MLA
  • Chicago
  • APA

"buddy system." A Dictionary of Computing. . Encyclopedia.com. 11 Dec. 2018 <https://www.encyclopedia.com>.

"buddy system." A Dictionary of Computing. . Encyclopedia.com. (December 11, 2018). https://www.encyclopedia.com/computing/dictionaries-thesauruses-pictures-and-press-releases/buddy-system

"buddy system." A Dictionary of Computing. . Retrieved December 11, 2018 from Encyclopedia.com: https://www.encyclopedia.com/computing/dictionaries-thesauruses-pictures-and-press-releases/buddy-system

Learn more about citation styles

Citation styles

Encyclopedia.com gives you the ability to cite reference entries and articles according to common styles from the Modern Language Association (MLA), The Chicago Manual of Style, and the American Psychological Association (APA).

Within the “Cite this article” tool, pick a style to see how all available information looks when formatted according to that style. Then, copy and paste the text into your bibliography or works cited list.

Because each style has its own formatting nuances that evolve over time and not all information is available for every reference entry or article, Encyclopedia.com cannot guarantee each citation it generates. Therefore, it’s best to use Encyclopedia.com citations as a starting point before checking the style against your school or publication’s requirements and the most-recent information available at these sites:

Modern Language Association

http://www.mla.org/style

The Chicago Manual of Style

http://www.chicagomanualofstyle.org/tools_citationguide.html

American Psychological Association

http://apastyle.apa.org/

Notes:
  • Most online reference entries and articles do not have page numbers. Therefore, that information is unavailable for most Encyclopedia.com content. However, the date of retrieval is often important. Refer to each style’s convention regarding the best way to format page numbers and retrieval dates.
  • In addition to the MLA, Chicago, and APA styles, your school, university, publication, or institution may have its own requirements for citations. Therefore, be sure to refer to those guidelines when editing your bibliography or works cited list.