thustorage/PipeANN

Implements a pipelined SSD-based vector search using an in-memory entry point index and graph-based layout with PQ compression, achieving 20K QPS for 1B vectors while supporting arbitrary filtered search via user-defined selectors. Built on `io_uring` for async I/O and compatible with existing DiskANN indexes, with both Python (faiss-like API) and C++ interfaces for search, insert, and delete operations with minimal performance degradation during updates.

102 stars.