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Learning to Accelerate: Tuning Data Transfer Parameters

Benedikt Didrich
Haralampos Gavriilidis
Vasilis Gkolemis
Matthias Boehm
Volker Markl

September 01, 2025

Efficient data transfer is crucial for modern distributed systems, but performance depends heavily on well-tuned transfer parameters. Optimizing these parameters is challenging due to the large search space and dynamic system conditions. Manual tuning is impractical, and existing heuristic methods lack sufficient adaptability. Suboptimal configurations can significantly degrade performance in data-intensive applications, highlighting the need for tuning strategies that adapt to their environment. In this paper, we intro duce Adapt as a data-driven approach for automatically tuning data transfer parameters. Our framework employs an ensemble cost model with dynamic weights that combine prior knowledge and online observations, as well as an efficient two-phase exploration strategy for finding high-performing configurations. Our experi ments show that Adapt outperforms both the existing heuristic optimizer and standard black-box baselines, achieving up to 34% higher throughput in 42% less time. Adapt also robustly adapts to changing environments, demonstrating the effectiveness of ML based tuning in real-world data transfer scenarios.