Shuge Unlimited

Jun 29, 2026 · Databases

Inside Milvus’ Index Engine: 3‑Layer Parameter Filling, Compile‑time Hardware Split, and a 16× Memory Trade‑off

The article dissects Milvus’ index engine, revealing that AUTOINDEX relies on a three‑stage default‑parameter pipeline, that CPU/GPU index selection is fixed at compile time via Go build tags, that the C++ Knowhere engine executes the algorithms, and that version aggregation, scalar V3 format, and the new AISAQ index embody deliberate memory‑vs‑IO trade‑offs.