Show HN: MemStitch – Zero-copy context bridging for vLLM (25x TTFT speedup)

AI & Machine Learning, DevOps & Infrastructure, Other: Distributed Computing(github.com)view on HackerNews
context-stitcherzero-copycontext bridgingGPU inferenceKV cachesPagedAttentiondistributed computinglatency reductionVRAM savingscollaborative LLM workflows

Author: daqulalin

Date: 7/14/2026

Article Summary:
Context-Stitcher is a zero-copy context bridging gateway for multi-agent GPU inference that bypasses the expensive prefill phase by dynamically stitching KV caches at the memory level using PagedAttention, reducing TTFT latency by up to 25x and saving 40%+ VRAM for collaborative LLM workflows.