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C# Boxing Kills Performance (Without You Noticing)

- 15.12.25 - ErcanOPAK

This looks harmless:

List<object> list = new();
list.Add(5); // boxing

✅ Fix

Use generics:

List<int> list = new();

Why it matters

  • Boxing allocates memory

  • GC pressure increases fast in loops

Related posts:

Why lock(this) Can Deadlock Your Entire App

DateTime.Now Can Break Distributed Systems

What is the difference between “int” and “uint” / “long” and “ulong”?

Post Views: 4

Post navigation

C# “Lock Contention” — Why lock(this) Breaks Apps
SQL “TOP 1 WITH ORDER BY” Without Index = Full Scan

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