A Generalized Model for Modern Hierarchical Memory System
A Generalized Model for Modern Hierarchical Memory System
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DOI：
10.1109/wsc57314.2022.10015298
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发表时间：
2022-12
期刊：
影响因子：
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通讯作者：
Hamed Najafi;Jason Liu;Xiaoyang Lu;Xian-He Sun
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文献类型：
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作者：
Hamed Najafi;Jason Liu;Xiaoyang Lu;Xian-He Sun
内存系统对建筑设计至关重要，这可能会对应用程序的性能产生重大影响。并发的平均内存访问时间（C-AMAT）是使用沿存储器层次结构的内存访问延迟的递归定义来分析和优化内存系统性能的模型。但是，原始的C-AMAT模型并未提供必要的粒度和灵活性，以使用异质记忆技术和多样化的系统拓扑来处理现代记忆体系结构。我们建议增强C-AMAT，以考虑单个缓存/内存组件的特质及其在内存体系结构设计中的拓扑布置。通过基于痕量的仿真，我们使用原始C-AMAT模型验证了增强模型，并以洞察力不可用。
Memory system is critical to architecture design which can significantly impact application performance. Concurrent Average Memory Access Time (C-AMAT) is a model for analyzing and optimizing memory system performance using a recursive definition of the memory access latency along the memory hierarchy. The original C-AMAT model, however, does not provide the necessary granularity and flexibility for handling modern memory architectures with heterogeneous memory technologies and diverse system topology. We propose to augment C-AMAT to take into consideration the idiosyncrasies of individual cache/memory components as well as their topological arrangement in the memory architecture design. Through trace-based simulation, we validate the augmented model and examine the memory system performance with insight unavailable using the original C-AMAT model.