type-design-performance

Use a struct vs class decision matrix in .NET to evaluate size, immutability, and allocation behavior. Favor readonly structs to reduce memory allocations and improve speed in performance-critical scenarios.

Optimize .NET collections by selecting efficient types like FrozenDictionary and deferring enumeration. This skill guides proper collection usage and enumeration strategies to minimize processing overhead.

Design an immutable DTO in .NET using readonly struct or record types. This skill emphasizes these patterns to ensure predictable behavior and maximize API efficiency.

Sealing .NET types by default is an enforced principle in this skill. Sealing types prevents inheritance overhead, enabling the runtime to optimize method calls and improve execution speed.

Use Span<T> instead of Memory<T> for .NET performance tuning when handling synchronous, stack-based memory operations. This skill helps choose the most efficient type for your specific data processing context.

Limitations of using structs in .NET type design include boxing overhead with non-generic APIs and potential copying costs for large structures. This skill guides when to avoid structs and defer enumeration to mitigate these constraints.