Deploying Docker containers with caching services can significantly improve application performance. Common caching services: Redis, Memcached. Deployment methods: 1) deploy caching services using official images; 2) configure volumes to persist cache data (such as Redis AOF/RDB); 3) use Docker Compose to orchestrate caching and application containers; 4) configure cache cluster mode (such as Redis Cluster). Performance optimization: use host network mode to reduce network overhead, adjust memory configuration, use persistence mode to avoid data loss. Best practices: set reasonable expiration times, monitor cache hit rates, implement cache warming, configure master-slave replication for high availability.