Power-aware memory management for hybrid main memory

Author

Park, Youngwoo ; Shin, Dong-Jae ; Park, Sung Kyu ; Park, Kyu Ho

Author_Institution

Comput. Eng. Res. Lab., Korea Adv. Inst. of Sci. & Technol., Daejeon, South Korea

fYear

2011

fDate

21-23 June 2011

Firstpage

82

Lastpage

85

Abstract

In this paper, we propose the main memory management mechanism of the Operating System (OS) for the hybrid main memory which combines both advantages of DRAM and PRAM (Phase Change RAM). We separate memory pages into hot and cold pages, and dynamically located them to the proper memory region. It was implemented into the Linux OS. We decreased the energy consumption of main memory up to 35% while performance degradation was less than 5%. Moreover, when we decreased the write count for PRAM, life-time of PRAM increased. In addition to these advantages, the system does not need additional hardware.

Keywords

DRAM chips; Linux; power aware computing; storage management; DRAM; Linux OS; PRAM; Phase Change RAM; energy consumption; hybrid main memory; memory page; operating system; performance degradation; power-aware memory management; write count; Energy consumption; Memory architecture; Memory management; Monitoring; Nonvolatile memory; Phase change random access memory;

fLanguage

English

Publisher

ieee

Conference_Titel

Next Generation Information Technology (ICNIT), 2011 The 2nd International Conference on

Conference_Location

Gyeongju

Print_ISBN

978-1-4577-0266-2

Electronic_ISBN

978-89-88678-39-8

Type

conf

Filename

5967477