Latest in AI

Engineering: Heaps Do Lie — Debugging a Memory Leak in vLLM

Mathis Felardos, a Mistral AI engineer, shares a technical deep-dive into tracking down a memory leak in vLLM, the widely adopted open-source LLM inference server. The investigation exposed a core frustration in systems debugging: heap profiling tools can actively mislead engineers rather than illuminate the true source of memory growth. The post offers practical engineering insight for teams operating LLM serving infrastructure in production.