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[Source] .NET/C# thread-safe RoundRobin poller algorithm

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Posted on 2/2/2026 9:13:55 AM | | | |
Requirements: Common load balancing algorithms include polling, randomization, etc., for .NET, how to implement thread-safe polling algorithms?
Volatile vs. Interlocked vs. lock
https://www.itsvse.com/thread-5023-1-1.html

Based on the Interlocked implementation, atomic operations are provided for variables shared by multiple threads. At the same time, it ensures that Interlocked.Increment has increased variables and is safe to use after overflow. In fact, because of the problem of maximum value, it does not guarantee "complete polling", and it is a trade-off in performance, and the deviation is actually acceptable. For example, only 99.999999% fairness can be guaranteed, which is equivalent to complete polling.

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