The State Machine Your async Method Compiles Into
An async method that never suspends allocates nothing. The same method, suspended once, allocates 160 bytes. The cost is not the keyword — it is the suspension.
Callum Reeve
CSharpMind
C#, .NET, and the runtime beneath them: long-form technical writing about the CLR, the JIT, the garbage collector and the frameworks built on top.
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Server GC, Workstation GC, and the Numbers Between Them
Server GC finished 2.7 times faster and collected 17 times less often — and made the slowest request in the run 5 to 13 times slower. Both numbers are real.
Where Thread Pool Starvation Actually Comes From
Blocking on a task is the case the thread pool compensates for. Blocking on a sleep or an event is the case it cannot see, and it finished 2.5 times slower.