Check MySQL Memory Usage Guide

To check the memory usage of MySQL, you can use the following methods:

1. Utilize the built-in performance_schema plugin in MySQL: This plugin allows you to monitor the memory usage of a MySQL instance, including memory usage, memory allocation, buffer pool usage, etc. You can view this information by executing the following SQL statements.

SELECT * FROM performance_schema.memory_summary_global_by_event_name;

1. Utilize MySQL monitoring tools such as MySQL Enterprise Monitor and Percona Monitoring and Management to monitor the memory usage of MySQL instances. These tools offer an intuitive graphical interface and detailed monitoring data, making it easier to view memory consumption.
2. Utilize operating system tools: In addition to MySQL’s own monitoring tools, you can also use operating system tools to check the memory usage of MySQL processes. For example, you can use command line tools like top or htop to view the memory usage of MySQL processes, or use monitoring tools like Grafana or Prometheus to monitor the overall system memory usage, including the memory usage of MySQL processes.

By using the above methods, you can gain a more comprehensive understanding of the memory usage of MySQL instances, and promptly identify and resolve any issues of excessive memory usage.