The fastest way to match characters on ARM processors?
Summary
The article explains how ARM's SVE and SVE2 instructions can perform vectorized character matching for tasks like JSON parsing and DNS processing. It compares SVE2's match and nmatch capabilities to traditional NEON and AVX-512 approaches, sharing code examples and benchmarking results from AWS Graviton 4 showing SVE2 outperforming NEON with fewer instructions. It also discusses interoperability with NEON and practical implications for performance-focused ARM software.