Summary

This PR adds comprehensive documentation for EF Core's memory caching configuration options, specifically EnableServiceProviderCaching and UseMemoryCache. The documentation explains where these features are used, what the defaults are, and when to customize them.

What's Documented

EnableServiceProviderCaching

• Purpose: Controls whether EF Core caches internal service providers for improved performance
• Default behavior: Enabled by default (true) - service providers are cached and reused across DbContext instances with the same configuration
• When to disable: For testing environments to ensure each test gets a fresh service provider when DbContext configurations change test-to-test
• Performance impact: Better performance and lower memory overhead for applications that create many DbContext instances

UseMemoryCache / Memory Cache Integration

• Purpose: Configures the IMemoryCache used by EF Core for internal caching operations like query compilation and model building
• Default configuration: EF Core automatically configures IMemoryCache with a default size limit of 10240
• Cache sizing: Compiled queries have a cache size of 10, built models have a cache size of 100
• Customization: Call AddMemoryCache if you need to change the default size limits
• Clarification: IMemoryCache is not used for internal service provider caching (separate feature)

Documentation Changes

Updated Files

• entity-framework/core/dbcontext-configuration/index.md
  • Added both EnableServiceProviderCaching and UseMemoryCache to the DbContext configuration options table
  • Created new ## EnableServiceProviderCaching section with complete explanation of service provider caching
  • Created new ## Memory Cache Integration section explaining IMemoryCache configuration
  • Included code examples for both ASP.NET Core DI scenarios
  • All content passes markdown linting rules

Documentation Structure

• Two main sections at ## heading level for clear organization
• Configuration options table updated with links to both sections
• Focused, accurate technical content based on reviewer feedback
• Clean formatting with proper list handling and paragraph flow

Key Technical Details

• Service provider caching is enabled by default (important for developers to know)
• Default memory cache size limit is 10240
• Memory cache and service provider caching are separate, independent features
• Proper guidance on when to customize each setting

Fixes #4855

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