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SIMD within a register: How I doubled hash table lookup performance

by Aleksey Maltsev maltsev.space published 2025-07-15

It started with a simple thought: four bytes in a hash table bucket look just like an integer. Luckily, this one idea led to a deep dive into bit-twiddling and a 2x performance boost.
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Systems & PerformanceSoftware Engineering2025

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Jul 28, 2025SIMD within a register: How I doubled hash table lookup performance by axeluser19140

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