Why MariaDB on my WooCommerce Website Consumes Too Much CPU?

High CPU Consumption Due to Slow Queries

One of the most common reasons for high CPU consumption by MariaDB on a WooCommerce website is slow queries.

A slow query is a query that takes a long time to execute. This can be due to a number of factors, such as:

• Inefficient query structure
• Lack of proper indexing
• High traffic volume

To identify slow queries, you can use the following query:

SELECT  MAX(post_modified_gmt)
    FROM  wp_posts
    WHERE  post_status = 'publish'
      AND  post_type IN ( 'post', 'page', 'attachment', 'e-landing-page',
                          'elementor_library', 'product' );

This query will return the maximum value of the post_modified_gmt column for all published posts of the specified post types.

You can then use this information to identify posts that have been modified recently and may be causing performance problems.

Indexing and Caching

Another common reason for high CPU consumption is a lack of proper indexing and caching.

Indexing is a way of organizing data in a database so that it can be accessed more quickly. Caching is a way of storing frequently accessed data in memory so that it can be retrieved more quickly.

If your WooCommerce website does not have proper indexing and caching, it will have to work harder to retrieve data, which can lead to high CPU consumption.

You can improve the performance of your website by adding indexes to frequently accessed tables and by implementing a caching mechanism.

High Traffic Volume

If your WooCommerce website is experiencing high traffic volume, it may be necessary to increase the resources allocated to your MariaDB server.

This can be done by increasing the amount of RAM or CPU allocated to the server, or by moving to a more powerful server.

Additional Suggestions

In addition to the above, there are a number of other things you can do to reduce CPU consumption by MariaDB on your WooCommerce website.

These include:

• Use a CDN to reduce the load on your server.
• Optimize your images for the web.
• Minify your CSS and JavaScript files.
• Enable Gzip compression.
• Use a performance plugin.

By following these tips, you can reduce CPU consumption by MariaDB on your WooCommerce website and improve its performance.