New attention design called inference-informed: cheap prefill, small KV cache
stochasticchasm · x · 2026-09-11
An analyst assesses a newly revealed attention architecture as 'very inference-informed': cheap prefill, small KV cache, likely friendly for PD disaggregation, with good utilization under larger-batch prefill.
In a follow-up he notes the design resembles hysparse, NSA, and DeepSeek's own CSA/HCA from v4 — combining a local sliding-window branch with a sparse retrieval branch is solidifying as a broad industry pattern.
More from Infra
- Persimmon Built on NVIDIA's 550B Nemotron 3 Ultra with Thousands of Blackwell GPUs — niloofar_mire · 2026-09-11
- NVIDIA details EPD disaggregation: up to 5x faster TTFT and 7x faster responses for multimodal serving — NVIDIAAI · 2026-09-11
- US and China Race to Build GPUs, UAE Builds Datacenters — Where's Europe? — tech__unicorn · 2026-09-11
- Longer Context = Faster Prefill? A Puzzling llama.cpp Benchmark Anomaly — Ekepa · 2026-09-11
- Modality-aware load balancing in MoE emerges as an interesting multimodal architecture trend — stochasticchasm · 2026-09-11
- 'Legacy Infrastructure' Is Suddenly the Future: Why Enterprise AI Is Moving Back On-Prem — DavidLinthicum · 2026-09-11