What are the smart caching mechanisms?

There are seven common intelligent caching mechanisms: "page caching", "database caching", "object level caching", "query result caching", "CDN caching", "eviction strategy" and "elimination strategy" Intelligent caching mechanism: 1. Page caching, which caches dynamically generated page content; 2. Database caching, which stores frequently accessed data in the cache to reduce the number of database queries; 3. Object-level caching, which caches frequently used data Objects or data are cached in memory to improve reading and writing speed; 4. Query result caching, caching the results of database queries, etc.

# Operating system for this tutorial: Window10 system, Dell G3 computer.

The intelligent caching mechanism is a technology that improves system performance by optimizing data access methods. The following are several common intelligent caching mechanisms:

1. Page caching: cache the dynamically generated page content. When the same page is requested next time, the cached page content is directly returned, reducing the database cost. Query and page rendering overhead.

2. Database cache: Store frequently accessed data in the cache to reduce the number of database queries. This can be achieved using an in-memory database (such as Redis) or caching middleware (such as Memcached).

3. Object-level caching: Cache frequently used objects or data in memory to improve read and write speeds. Object-level cache management can be done using a caching framework such as Ehcache.

4. Query result caching: Cache the results of the database query. When the same query request arrives next time, the cached result will be returned directly. This can reduce query pressure on the database.

5. CDN caching: Use a content delivery network (CDN) to cache static resources on nodes closer to users, providing faster access speeds and reducing server load.

6. Eviction strategy: When the cache space is insufficient, some cached data will be eliminated according to a certain strategy to make room for new cached data.

7. Elimination strategy: Selectively eliminate some cached data based on the usage of cached data, such as least used (LRU), recently not used (LFU) and other strategies.

These intelligent caching mechanisms can be combined and adjusted according to specific scenarios and needs to improve system performance and response speed.

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