Author

Yun Peng

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Book Open access Aug 2026

EffiHolmes: Differential Profiling-Guided Repository Level Time Inefficiency Fix Localization

EffiHolmes is an LLM-based frame- work for localizing fix locations of repository-level time inefficiency issues, which outperforms state-of-the-art retrieval-based, agent-based, and profiling-based baselines and remains robust across model capacities.

Hao-Wen Yang, Yun Peng, Zi-Shuo Ding · Proceedings of the 41st IEEE... · 1 citation

Jul 2026

Multi-level Code Optimization via Mixture of Prompts

Optimo is proposed, a multi-level LLM-based code optimization approach built on a novel Mixture-of-Prompts (MoP) architecture that achieves up to 57.48% opt%, and consistently outperforms the best baseline by up to 96.51% in terms of opt%.

Yun Peng, Jun Wan, Jiakun Liu et al. · arXiv.org · 0 citations