Building a fast LLM gateway in Go: Lua + pgvector

📰 Dev.to · Mushfiq Rahman

Learn how to build a fast LLM gateway in Go using Lua and pgvector to achieve low latency and high performance

advanced Published 27 May 2026
Action Steps
  1. Build a two-tier cache system to reduce latency
  2. Implement Redis Lua scripts to optimize cache hits
  3. Configure pgvector to replace a separate vector DB
  4. Test the LLM gateway for performance and latency
  5. Apply optimizations to achieve sub-3 ms p50 cache-hit latency
Who Needs to Know This

Machine learning engineers and software developers on a team can benefit from this knowledge to optimize their LLM gateways and improve overall system performance. This is particularly useful for teams working with large-scale language models and high-traffic applications.

Key Insight

💡 Using a combination of Redis Lua scripts and pgvector can significantly reduce latency in LLM gateways

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🚀 Build a fast LLM gateway in Go with Lua and pgvector! 💡

Key Takeaways

Learn how to build a fast LLM gateway in Go using Lua and pgvector to achieve low latency and high performance

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