arXiv AI By Konstantinos Papaioannou, Thaleia Dimitra Doudali

Rocks, Pebbles and Sand: Modality-aware Scheduling for Multimodal Large Language Model Inference

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RPS-Serve is a modality-aware scheduling framework for multimodal large language model inference that treats videos, images, and text as rocks, pebbles, and sand, respectively. It estimates GPU admission costs, classifies requests, and applies priority-based scheduling with aging to balance performance across modalities. The approach boosts GPU utilization by 65% and cuts time-to-first-token by up to 9.3× compared to existing disaggregation-based systems.

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