# MemStitch: Zero-copy context bridging speeds up vLLM by 25x

A Hacker News user announced MemStitch, a zero-copy context bridging technique for the vLLM inference engine. It achieves up to a 25x speedup in time-to-first-token (TTFT) by reducing memory overhead. This advancement could significantly improve the efficiency of serving large language models.

**Importance:** 3/5

## Sources

### Technology
- [Hacker News](https://github.com/DaqulaLin/MemStitch) — Tue, 14 Jul 2026 01:04:02 +0000