Queries per second (QPS) is a measure of the amount of search traffic an
information-retrieval system, such as a
search engine
A search engine is a software system designed to carry out web searches. They search the World Wide Web in a systematic way for particular information specified in a textual web search query. The search results are generally presented in a ...
or a
database
In computing, a database is an organized collection of data stored and accessed electronically. Small databases can be stored on a file system, while large databases are hosted on computer clusters or cloud storage. The design of databases sp ...
, receives in one second.
Microsoft's search glossary
/ref> The term is used more broadly for any request–response
In computer science, request–response or request–reply is one of the basic methods computers use to communicate with each other in a network, in which the first computer sends a ''request'' for some data and the second ''responds'' to the requ ...
system, where it can more correctly be called requests per second
A web server is computer software and underlying hardware that accepts requests via HTTP (the network protocol created to distribute web content) or its secure variant HTTPS. A user agent, commonly a web browser or web crawler, initiates ...
(RPS).
High-traffic systems must be mindful of QPS to know when to scale to handle greater load.
See also
* Transactions per second
In a very generic sense, the term transactions per second (TPS) refers to the number of atomic actions performed by certain entity per second. In a more restricted view, the term is usually used by DBMS
In computing, a database is an organized ...
References
Units of frequency
Information retrieval evaluation
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