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The aim is to demonstrate the benefits of using event waits instead of sleep for better timing accuracy in Windows operational contexts.

July 29, 2026Open Access

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Why You Should Prefer Event Waits over Sleep(1) on Windows (archived 2026-07-27)

GKGo KomuraFujikura (United States)

Key Points

The aim is to demonstrate the benefits of using event waits instead of sleep for better timing accuracy in Windows operational contexts.
Comparison of event-driven waits and sleep function behaviors on Windows systems.
Analysis of the impact of system clock granularity on timing accuracy.
Event-driven waits provide better responsiveness compared to timed sleep.
Polling with fixed intervals can lead to inefficiencies due to scheduling and clock limitations.

Abstract

On Windows, the accuracy of short timed waits is bounded by the system clock granularity and scheduling. If you are waiting for work to arrive, I/O to complete, or a stop request, this article lays out why you should go event-driven instead of polling at a fixed interval. Archived version of https://comcomponent.com/en/blog/2026/03/16/006-windows-timer-vs-event-wait/, as published on 2026-07-27. The live article is maintained and may change after this date. First published 2026-03-16.

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Why You Should Prefer Event Waits over Sleep(1) on Windows (archived 2026-07-27)

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