View source for Queries per second

{{Short description|Measure of search traffic an information retrieval system receives}}
{{distinguish-redirect|Query rate|Query throughput}}
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'''Queries per second''' ('''QPS''') is a measure of the amount of search traffic an [[information retrieval|information-retrieval]] system, such as a [[search engine]] or a [[database]], receives in one second.<ref>{{cite web |last= |first= |date= |title= Enterprise Search: Search Glossary |url= http://www.microsoft.com/enterprisesearch/en/us/search-glossary.aspx#Q |website= |location= |publisher= Microsoft |url-status= |archive-url= https://web.archive.org/web/20121112160733/http://www.microsoft.com/enterprisesearch/en/us/search-glossary.aspx#Q |archive-date= 12 November 2012 |access-date=}}</ref> The term is used more broadly for any [[request–response]] system, where it can more correctly be called [[requests per second]] (RPS).

High-traffic systems must be mindful of QPS to know when to [[Scalability|scale]] to handle greater load.

== See also ==
* [[Transactions per second]]

== References ==
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[[Category:Units of frequency]]
[[Category:Information retrieval evaluation]]

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