DriveCache: Action-Aware Caching for Driving World Model Inference
This study addresses the inference bottleneck in driving video generation models caused by redundant computations during diffusion. We propose DriveCache, a training-free, action-aware cache controller that pioneers the integration of driving signals into cache scheduling. By optimizing denoising steps through dynamic programming and employing causal drift detection for adaptive feature reuse and correction, DriveCache significantly enhances both inference efficiency and generation fidelity within responsive computational budgets. Experimental evaluations across three generator configurations demonstrate that DriveCache achieves superior efficiency-quality trade-offs compared to existing caching methods. Consequently, this work establishes a novel paradigm for the efficient deployment of world models in autonomous driving applications, effectively balancing computational constraints with high-fidelity video synthesis without requiring additional model retraining.