Mysqld is loading RAM for me?

Question

linux

Hi all! The process loads the RAM. Tell me what is the reason and how to fix it?

Server for web sites (nginx, php, mysql).

Answer 1

Oh my god, the DBMS uses a lot of memory while running!
Show the settings, most likely this is completely normal behavior.

Answer 2

well, there is a lot of data in the database and you work with it very well, this is normal

Answer 3

Install mysqltuner and see its output. And yes, if there is a lot of data and little RAM, you can only make things worse.
Enable slowlog, analyze it with percona tools, you may need to add a couple of other indexes. Lots of options.