C H A P T E R  3

Caching

Caching is an important cornerstone of high-performance web sites. You can use it to accomplish the following:

  • Reduce round-trips: Content cached at the client or in proxies can eliminate web server round-trips. Content cached at the web server can eliminate database round-trips.
  • Move content closer to clients: The farther away from clients content is located, the longer it takes to retrieve that content.
  • Avoid time-consuming processes of regenerating reusable content: For content that takes a lot of time or resources to generate, system performance and scalability are improved if you can generate content once and then reuse it many times.
  • Optimize state management: Caching state information at the client is more scalable ...

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