Blog

Mert Özen's blog posts on software development, backend, frontend, and DevOps.

Series

.NET Core Web API 36 C# Fundamentals 20 Object-Oriented Programming in C# 16 C# Collections and Generics 11 LINQ 17 Asynchronous Programming in C# 17 Advanced C# 14 C# Versions 6

2 posts found #threadpool

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Backend PART 02

C# Threads and the ThreadPool: A Short History of Async from APM and EAP to TPL

Foreground versus background threads, why the Thread class cannot carry results or errors, and a real measurement of 1000 threads against the thread pool. Then .NET's road to async: APM's Begin/End pair, EAP's Completed event, TPL's Task and the async/await that arrived with C# 5.

7 Nov 2026 10 min 3

Backend PART 01

Why Async Exists in C#: Blocking, I/O and Scale

The same 100 stock queries finish in one second with async and in 8-9 seconds with code that blocks the thread. The difference between I/O-bound and CPU-bound work, what blocking costs in a UI and on a server, thread pool starvation, why async buys capacity rather than speed, and the fake async trap.

7 Nov 2026 9 min 10