Speeding up gearhash on ARM64 (2× faster)
The gearhash crate has gained a NEON backend for improved performance. How a direct port started out slower than scalar, and the dependency-chain work that fixed it.
Summary
A new NEON backend for the gearhash crate significantly boosts performance on ARM64 architecture, achieving speeds twice as fast. The article details the initial challenges faced during the porting process and the subsequent optimizations that led to these improvements.
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