All 18 Memory & Garbage Collection questions
More in Memory & Garbage Collection
What is boxing and unboxing, and why does it have a real performance cost? What is the difference between Dispose and Finalize in C#, and when should each actually be used? What causes managed memory leaks despite the GC? How do Span<T> and ArrayPool reduce GC pressure? How would you use a memory profiler (or dotnet-counters / dotnet-gcdump) to diagnose excessive garbage collection pressure in a production .NET application? What is the Large Object Heap (LOH), and why do objects allocated there behave differently from regular small objects? How do WeakReference<T> objects work, and in what scenario would you use one instead of a normal strong reference? How would you use ArrayPool<T> to reduce garbage collection pressure in a high-throughput, buffer-allocating hot path?
Advertisement
C# › Memory & Garbage Collection

How does the difference between the Server GC and Workstation GC modes affect a .NET application's throughput and latency characteristics?

Advanced

Answer

Workstation GC (the default for client apps) optimizes for LOW LATENCY, running collections on a single thread with minimal pause impact on a UI thread; Server GC (typical for ASP.NET Core web servers) optimizes for HIGH THROUGHPUT by using MULTIPLE dedicated GC threads (one per CPU core) and separate heaps, trading slightly higher pause times for much better overall performance under heavy concurrent load.
// runtimeconfig.json or .csproj setting
<PropertyGroup>
  <ServerGarbageCollection>true</ServerGarbageCollection>
</PropertyGroup>
// ASP.NET Core apps typically benefit from Server GC due to high, concurrent allocation rates
Real-world example Choosing Server GC for a high-throughput web API versus Workstation GC (with concurrent GC enabled) for a responsive desktop application.

Common follow-ups: Why might Server GC actually be a poor choice for a container with a very LOW CPU core limit?

Multithreading & Task Parallel Library
All 18 Memory & Garbage Collection questions