NDLI: Power-performance management on an IBM POWER7 server

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Variation aware performance analysis of gain cell embedded DRAMs

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PS-BC: power-saving considerations in design of buffer caches serving heterogeneous storage devices

Load-matching adaptive task scheduling for energy efficiency in energy harvesting real-time embedded systems

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Dynamic thermal management for single and multicore processors under soft thermal constraints

A three-step power-gating turn-on technique for controlling ground bounce noise

Customizing pattern set for test power reduction via improved X-identification and reordering

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Power-performance management on an IBM POWER7 server

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0.5-V operation variation-aware word-enhancing cache architecture using 7T/14T hybrid SRAM

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Power-performance management on an IBM POWER7 server

Content Provider	ACM Digital Library
Author	Rawson, Freeman Geissler, Andrew Silva, Guillermo Rosedahl, Todd Rajamani, Karthick Ware, Malcolm Carter, John Hanson, Heather Hua, Hong
Abstract	The processor and cooling subsystems of high-performance servers consume a significant portion of total system power. In this paper, we use the server energy-efficiency benchmark SPECpower_ssj2008 to assess dynamic power management strategies for these sub-systems on an IBM POWER 750 platform. First, we evaluate the impact of feedback-driven fan control to reduce power while continuously maintaining a suitable thermal environment. Next, we demonstrate the importance of refining traditional utilization-based DVFS algorithms when managing systems with large core and thread counts. We present a new approach and demonstrate its effectiveness with real-world scenarios for dynamic power management. With reliable runtime power management, we can safely boost (turbo) core frequencies beyond their nominal values to achieve higher throughput. The combined effect of dynamic fan and enhanced processor DVFS control yields an overall improvement of 43% for the energy-efficiency score of the SPECpower_ssj2008 benchmark on our test system.
Starting Page	201
Ending Page	206
Page Count	6
File Format	PDF
ISBN	9781450301466
DOI	10.1145/1840845.1840885
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2010-08-18
Publisher Place	New York
Access Restriction	Subscribed
Subject Keyword	Fan control Power7 Power management Specpower_ssj2008 Energy savings Dvfs
Content Type	Text
Resource Type	Article

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