Xiao Lou's Tech Notes

Feb 17, 2025 · Backend Development

Swiss Tables in Go 1.24: Open Addressing, SIMD, and Metadata Secrets

The article explains how Go 1.24’s new Swiss Tables hash‑map implementation replaces the traditional bucket‑based design with open addressing, SIMD‑accelerated probing, and metadata separation, detailing the underlying principles, performance advantages, handling of clustering and deletions, and a comparison with previous Go maps and Java’s HashMap.