Milvus performance on AVX-512 vs. AVX2

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This post details performance comparisons of Milvus on AVX-512 versus AVX2 instruction sets. It outlines system configuration, Milvus parameters (cache size, nlist, nprobe), and the SIFT10M dataset used for testing. Performance results are presented for IVF_FLAT, IVF_SQ8, and HNSW index types, showing consistent speed improvements with AVX-512. The analysis concludes that while AVX-512 offers theoretical benefits, real-world performance gains are influenced by other system tasks. It also highlights IVF_SQ8's efficiency over IVF_FLAT due to memory bandwidth constraints.