Java Backend Technology
Sep 29, 2019 · Fundamentals
Why Adding Zero Can Slow Your Code 7×: The Hidden Cost of Denormalized Floats
An intriguing experiment shows that a seemingly harmless "y += 0" operation can be seven times slower than "y += 0.1f" due to CPU handling of denormalized floating‑point numbers, and the article explains the binary representation, performance impact, and how to disable it for faster code.
C++CPU performancedenormal numbers
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