Johannes Bechberger • 9/19/2025

How to waste CPU like a Professional

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This article details the author's journey to create a reliable method to waste a predefined amount of CPU time in user-land, driven by the need to test a CPU-time profiler's dynamic queue sizing. It compares seven different implementations of a `my_wait` function, analyzing their performance, accuracy, and kernel vs. user-land time consumption, with all code provided on GitHub.

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#benchmarking #linux #performance testing
How to waste CPU like a Professional

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