Title
Towards energy-proportional datacenter memory with mobile DRAM
Abstract
To increase datacenter energy efficiency, we need memory systems that keep pace with processor efficiency gains. Currently, servers use DDR3 memory, which is designed for high bandwidth but not for energy proportionality. A system using 20% of the peak DDR3 bandwidth consumes 2.3x the energy per bit compared to the energy consumed by a system with fully utilized memory bandwidth. Nevertheless, many datacenter applications stress memory capacity and latency but not memory bandwidth. In response, we architect server memory systems using mobile DRAM devices, trading peak bandwidth for lower energy consumption per bit and more efficient idle modes. We demonstrate 3-5x lower memory power, better proportionality, and negligible performance penalties for datacenter workloads.
Year
DOI
Venue
2012
10.1145/2366231.2337164
ISCA
Keywords
DocType
Volume
memory system,memory capacity,memory bandwidth,mobile dram,lower memory power,ddr3 memory,towards energy-proportional datacenter memory,energy proportionality,datacenter energy efficiency,utilized memory bandwidth,high bandwidth,architect server memory system,energy efficient,memory management,mobile communication,data center,servers,bandwidth,energy conservation,stress
Conference
40
Issue
ISSN
ISBN
3
0163-5964
978-1-4503-1642-2
Citations 
PageRank 
References 
92
8.26
31
Authors
6
Name
Order
Citations
PageRank
Krishna T. Malladi124918.37
Benjamin C. Lee293151.85
Frank A. Nothaft3928.26
Christos Kozyrakis45817355.99
Karthika Periyathambi5928.26
Mark Horowitz663741543.34