# Page Not Found

The URL `ref/mdb/status-variables/Key_blocks_used` does not exist.

You might be looking for one of these pages:
- [Optimizing key_buffer_size](https://mariadb.com/docs/server/ha-and-performance/optimization-and-tuning/system-variables/optimizing-key_buffer_size.md)
- [LOCK TABLES](https://mariadb.com/docs/server/reference/sql-statements/transactions/lock-tables.md)
- [Query Block Naming](https://mariadb.com/docs/server/ha-and-performance/optimization-and-tuning/optimizer-hints/query-block-naming.md)
- [Server Status Variables](https://mariadb.com/docs/server/server-management/variables-and-modes/server-status-variables.md)
- [mysql.proc Table](https://mariadb.com/docs/server/reference/system-tables/the-mysql-database-tables/mysql-proc-table.md)

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2. **View the full content**: [/llms-full.txt](https://mariadb.com/docs/llms-full.txt) - Full content export

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- For markdown responses, append `.md` to URLs (e.g., `/docs/server/ha-and-performance/optimization-and-tuning/system-variables/optimizing-key_buffer_size.md`)
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