servicestack-performance-tuning

name	servicestack-performance-tuning
description	Optimizes ServiceStack services, OrmLite usage, filters, and serialization.

ServiceStack Performance Tuning

ServiceStack is built for high-performance and low-latency. Follow these tips to keep it that way.

Caching

• Output Caching: Use the [CacheResponse] attribute or manual ICacheClient usage.
• HTTP Caching: Use ServiceStack.HttpCache to control client-side and proxy caching.

OrmLite Optimization

• Selective Queries: Use Db.Select<T>(q => q.Select(x => new { x.Id, x.Name })) to fetch only what's needed.
• Async API: Always prefer Async methods for I/O.
• Connection Pooling: Use the default IDbConnectionFactory which handles pooling.
• Indexing: Ensure your OrmLite data models have appropriate [Index] attributes.

Serialization

• ServiceStack.Text: The built-in JSON/CSV/JSV serializer is one of the fastest in .NET.
• Avoid Heavy Types: Keep DTOs lightweight; avoid circular references.

Request Lifecycle

• Lean Filters: Keep global and attribute filters efficient. Avoid heavy I/O in filters if possible.

Best Practices

• Profiling: Use the built-in Profiling features (/profiler) to identify bottlenecks.
• Gzip/Compression: Enable compression for large JSON payloads.
• Minimum Dependencies: Avoid adding unnecessary external packages that could bloat the application.