Read-through and write-through caching are two caching strategies used to manage how data is synchronized between a cache and a primary storage system. They play crucial roles in system performance optimization, especially in applications where data access speed is critical.

Read-Through Cache

• Definition: In a read-through cache, data is loaded into the cache on demand, typically when a read request occurs for data that is not already in the cache.
• Process:
  • When a read request is made, the cache first checks if the data is available (cache hit).