间接块对缓冲缓存能量效率的影响

Jianhui Yue, Yifeng Zhu, Zhao Cai
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引用次数: 3

摘要

间接块是文件元数据的一部分,用于定位该文件的数据块,通常与缓冲区缓存中的文件数据块没有区别。本文表明,这种传统的方法将显著损害存储系统的整体能源效率。将小但经常访问的间接块分散到所有内存芯片上,减少了节能的机会。我们提出了一种新的高效节能的缓冲缓存管理方案MEEP,该方案将间接锁和数据锁分离到不同的存储芯片中。我们的跟踪驱动仿真结果表明,在I/ o密集型服务器工作负载TPC-R和TPC-H中,我们的新方案分别可以节省16.8%和15.4%的内存能量。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Impacts of Indirect Blocks on Buffer Cache Energy Efficiency
Indirect blocks, part of a file's metadata used for locating this file's data blocks, are typically treated indistinguishably from file's data blocks in buffer cache. This paper shows that this conventional approach will significantly detriment the overall energy efficiency of memory systems. Scattering small but frequently accessed indirected blocks over allmemory chips reduce the energy saving opportunities. We propose a new energy-efficient buffer cache management scheme, named MEEP, which separates indirect and datablocks into different memory chips. Our trace-driven simulation results show that our new scheme can save memory energy up to 16.8% and 15.4% in the I/O-intensive server workloads TPC-R and TPC-H, respectively.
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