For his latest agentic-RAG deep dive, Anubhab Banerjee looks at how replacing the Python round-trip tax with a custom GPU memory architecture unlocks deterministic microsecond tail latencies for multi-hop RAG. https://towardsdatascience.com/gpu-resident-top-k-for-agentic-rag-i-built-a-cuda-kernel-so-my-retrieval-step-would-stop-bouncing-off-the-gpu/