http://debianws.lexgopc.com/wiki143/index.php?action=history&feed=atom&title=Command_queue 2026-05-01T15:42:47Z Revision history for this page on the wiki MediaWiki 1.43.1 http://debianws.lexgopc.com/wiki143/index.php?title=Command_queue&diff=2874838&oldid=prev 2024-11-12T14:52:21Z

<p>rm empty section</p> <p><b>New page</b></p><div>{{unreferenced|date=December 2012}}<br /> <br /> In [[computer science]], a &#039;&#039;&#039;command queue&#039;&#039;&#039; is a [[Queue (data structure)|queue]] that determines when a command is executed, usually by order of [[Priority queue|priority]] or on a [[FIFO (computing and electronics)|first-in first-out]] basis. Instead of waiting for each command to be executed before sending the next one, a program will put all its commands in the command queue, freeing it to perform other functions while the queue is processed by the [[operating system]]. <br /> <br /> This delegation not only frees the program from handling the queue but can also help optimize execution. For instance, when handling multiple requests from several users, a network server&#039;s hard drive can reorder the requests in its queue using the [[elevator algorithm]], which minimizes mechanical movement.<br /> <br /> ==Examples==<br /> * [[Native Command Queuing]] (NCQ) in [[Serial ATA]] (SATA)<br /> * [[Tagged Command Queuing]] (TCQ) in [[Parallel ATA]] and [[SCSI]]<br /> <br /> ==See also==<br /> *[[Batch processing]]<br /> *[[Burst mode (computing)]]<br /> *[[Command pattern]]<br /> *[[Job queue]]<br /> *[[Job scheduler]]<br /> <br /> {{DEFAULTSORT:Command Queue}}<br /> [[Category:Job scheduling]]<br /> <br /> <br /> {{compu-stub}}</div>

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