Struggling with MySQL memory spikes? Knowing how and where memory is allocated can make all the difference in maintaining a fast, reliable database. From global buffers to session-specific allocations, understanding the details of MySQL’s memory management can help you optimize performance and avoid slowdowns. Let’s explore the core elements of MySQL memory usage with best practices for trimming excess in demanding environments.
This is a companion discussion topic for the original entry at https://percona.community/blog/2025/11/11/mysql-memory-usage-a-guide-to-optimization