Access time: Difference between revisions
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{{short description|Latency between a request to an electronic system and the access being completed}} | {{short description|Latency between a request to an electronic system and the access being completed}} | ||
{{About||access time in hard disk drives|Disk access time|access time in Unix file statistics|stat (system call)|access time in telecommunications networks|Access network#Access process}} | {{About||access time in hard disk drives|Disk access time|access time in Unix file statistics|stat (system call)|access time in telecommunications networks|Access network#Access process}} | ||
In [[computer]] and [[software system]]s, it is the time interval between the point where an [[instruction (computer science)|instruction]] control unit initiates a call to retrieve [[data]] or a request to store data, and the point at which delivery of the data is completed or the storage is started. Note that in [[Distributed computing|distributed software systems]], access time or latency should be measured | '''Access time''' is the time delay or [[Latency (engineering)|latency]] between a request to an electronic system, and the access being initiated or the requested data returned. | ||
In [[computer]] and [[software system]]s, it is the time interval between the point where an [[instruction (computer science)|instruction]] control unit initiates a call to retrieve [[data]] or a request to store data, and the point at which delivery of the data is completed or the storage is started. Note that in [[Distributed computing|distributed software systems]] or other systems with [[stochastic process]]es, access time or latency should be measured at the ''99th percentile''.<ref>{{Cite book |title=Understanding Distributed Systems: What every developer should know about large distributed applications |year=2021 |isbn=978-1838430207 |last1=Vitillo |first1=Roberto |publisher=Roberto Vitillo }}</ref>'' | |||
==See also== | ==See also== | ||
Revision as of 21:54, 8 June 2025
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Access time is the time delay or latency between a request to an electronic system, and the access being initiated or the requested data returned.
In computer and software systems, it is the time interval between the point where an instruction control unit initiates a call to retrieve data or a request to store data, and the point at which delivery of the data is completed or the storage is started. Note that in distributed software systems or other systems with stochastic processes, access time or latency should be measured at the 99th percentile.[1]
See also
References
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