Work-in-Progress: CLERR: A High-performance Cross-layer Method for Eliminating Rendering Redundancy in Android

Rendering redundancy consumes a lot of computing resources in mobile devices. Eliminating redundancy can effectively improve system energy efficiency. However, as the premise of redundancy elimination, the existing redundancy identification methods affect the final performance because of the excessive cost. In this article, we propose the CLERR: a high-performance cross-layer method for eliminating rendering redundancy. CLERR decomposes the redundancy detection process into two collaborative steps, thereby reducing detection overhead. The proposed method is compatible with the mainstream Android 12 system. Experimental results indicate that the method can reduce frame drop rates by 14.5% and save SOC energy by 5.1%.