Large variations in query return time

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Good evening friends, I have a site with a relative number of users accessing and next to it an administrator function that visualizes the return time of all the querys that the page needs.

I used a lot of caching but decided to leave the queries directly in the database to load those data.

Usually the values vary greatly, eg:  - 6ms, 18ms, 23ms, 30ms.

I'm not being paranoid, but would like to know what can lead to these variations?

    
asked by anonymous 27.06.2018 / 03:33

0 answers