Modern mobile heterogeneous platforms have GPUs integrated with multicore processors to enable execution of high-end graphics-intensive games. However, these gaming applications consume significant power due to heavy utilization of CPU–GPU resources, which drains battery resources that are critical for mobile devices. While dynamic voltage and frequency scaling (DVFS) techniques have been exploited previously for dynamic power management, contemporary techniques do not fully exploit the memory access footprint for graphics-intensive gaming applications, missing opportunities for energy efficiency. In this paper, we present MEMCOP, a memory-aware cooperative CPU–GPU DVFS governor that considers both the memory access footprint as well as the CPU/GPU frequency to improve energy efficiency of high-end mobile game workloads. Our experimental results on real games and synthetic game workloads show that our MEMCOP game governor achieves on average 18 and 9% improvement of energy efficiency with minor degradation of performance compared to default governors and state-of-the-art game governors.

中文翻译：

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MEMCOP：用于移动游戏的内存感知协作电源管理调节器

现代移动异构平台的GPU与多核处理器集成在一起，从而能够执行高端图形密集型游戏。但是，由于大量使用CPU-GPU资源，这些游戏应用会消耗大量电能，这会耗尽对移动设备至关重要的电池资源。尽管动态电压和频率缩放（DVFS）技术先前已被用于动态电源管理，但是现代技术并未完全利用图形密集型游戏应用程序的内存访问空间，因而缺乏提高能效的机会。在本文中，我们介绍了MEMCOP，这是一种内存感知型CPU-GPU协作DVFS调速器，它同时考虑了内存访问占用量以及CPU / GPU频率，以提高高端移动游戏工作负载的能效。