How Can I Achieve Sub-Millisecond Thread Sleep on Windows?

Achieving Sub-Millisecond Thread Sleep on Windows with Existing Functions

On Windows, the Sleep function only allows millisecond granularity for thread sleep. However, it is crucial to recognize that the parameter you pass to sleep functions represents the minimum time for sleeping. The thread will not necessarily wake up exactly after the specified duration.

The kernel scheduler makes the decision when the thread is scheduled to resume execution. Given that the scheduler may prioritize other active threads, the actual sleep period can be significantly longer than requested. This behavior is consistent with operating systems, including those on Unix systems.

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