论文标题
Intel AEP Optane Dimm的系统测量
System measurement of Intel AEP Optane DIMM
论文作者
论文摘要
近年来，记忆墙一直是计算机系统的出色性能瓶颈。为了克服它，已经广泛讨论了非易失性主内存（NVMM）技术，以提供更大的主内存能力。去年，英特尔（Intel）发布了AEP Optane Dimm，该DIMM提供了数百GB的容量，以替代传统的DRAM内存。但是，由于AEP的大多数关键参数都不向用户开放，因此需要了解它们，因为它们将指导进一步的NVMM研究方向。在本文中，我们专注于衡量AEP DIMM的性能和体系结构功能。我们一起探索了DRAM CACHE的设计，这是DRAM-AEP混合记忆系统的重要组成部分。结果，我们估计尚未准确测量的AEP DIMM的写潜伏期。而且，我们发现了DRAM缓存的当前设计参数，例如标签组织，缓存关联性和设置索引映射。所有这些功能首先发表在学术论文上，这对未来的NVMM优化非常有帮助。
In recent years, memory wall has been a great performance bottleneck of computer system. To overcome it, Non-Volatile Main Memory (NVMM) technology has been discussed widely to provide a much larger main memory capacity. Last year, Intel released AEP Optane DIMM, which provides hundreds of GB capacity as a promising replacement of traditional DRAM memory. But as most key parameters of AEP is not open to users, there is a need to get to know them because they will guide a direction of further NVMM research. In this paper, we focus on measuring performance and architecture features of AEP DIMM. Together, we explore the design of DRAM cache which is an important part of DRAM-AEP hybrid memory system. As a result, we estimate the write latency of AEP DIMM which has not been measured accurately. And, we discover the current design parameters of DRAM cache, such as tag organization, cache associativity and set index mapping. All of these features are first published on academic paper which are greatly helpful to future NVMM optimizations.
