Author

Yong-Chao He

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Book Open access Sep 2026

LMTracer: Fine-Grained and Real-Time Performance Profiling for Production LLM Systems

Training and serving large language models (LLMs) has become a core business for AI providers. To ensure a high-quality user experience while optimizing infrastructure costs, providers need to closely monitor the performance of LLM executions in production. However, existing performance profiling tools fall short in th...

Wei Liu, Yong-Chao He, Bo-Han Zhao et al. · Proceedings of the ACM SIGOP... · 0 citations

Jul 2026

InstantInfer: Enabling Fast LLM Cold Start with Communicating Finite Automata

This work proposes the Communicating Finite Automata (CFA) abstraction to systematically analyze cross-component optimization opportunities, and designs a programming framework to enable CFA-based component program refactoring that preserves the original sequential program structure while enabling safe concurrent compo...

Yitao Yuan, Yongchao He, Shaoke Fang et al. · arXiv.org · 0 citations