This documentation is for an older version. If you're using the most current version, select the documentation for that version with the version switch in the upper right corner of the online documentation, or by downloading a newer PDF or EPUB file.

8.10 Buffering and Caching

8.10.1 The MyISAM Key Cache
8.10.2 The InnoDB Buffer Pool
8.10.3 The MySQL Query Cache

MySQL uses several strategies that cache information in memory buffers to increase performance.