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In literature SQL query efficiency is often measured in "queries pre second" (QPS). How those measures are made, considering that I have a database with production data at my hands? Is there a MySQL tool that can to this?
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To calculate the Max QPS we do the following: take the number of queries performed each second over a 5-minute time range, resulting in 300 values (60 seconds * 5 minutes), select the highest value: this is the Max QPS for a 5-minute interval.
Quick Phonics Screener (QPS) is a phonics assessment that teachers have successfully used for more than 10 years to diagnose a student's strengths and instructional needs in phonics and decoding skills.
Queries per second (QPS) is a measure of the amount of search traffic an information-retrieval system, such as a search engine or a database, receives in one second. The term is used more broadly for any request–response system, where it can more correctly be called requests per second (RPS).
Queries per second is a measure of the rate of traffic going through a particular server in relation to a network that serves a Web domain.
# mysqladmin status Uptime: 587 Threads: 121 Questions: 3456 Slow queries: 0 Opens: 152 Flush tables: 1 Open tables: 64 Queries per second avg: 5.888 The easiest way to do this is to create a job that runs:
SHOW STATUS at specified intervals. This will return the "queries" value. Take the difference between successive calls to SHOW STATUS and then divide by the number of seconds between measurements to get the queries per second.
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