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Software-based dynamic thermal management for Linux systems

Published: 18 March 2005 Publication History

Abstract

Temperature control is an important requirement for modern computer systems, especially for laptops and small form-factor desktops with limited choices for active cooling. Hardware approaches to thermal management include the use of clock gating and dynamic voltage and frequency scaling. However, the indiscriminate use of these techniques can hamper performance of all processes running on a system regardless of their individual contributions to the thermal output. A modification to the Linux kernel that applies these techniques only when non-interactive processes are running is investigated and shown to provide effective dynamic thermal management with no performance impact on interactive processes. Pentium-M processors with the Enhanced SpeedStep feature are attractive platforms for this type of software-based approach because of their support for multiple paired frequency/voltage points which allow for multiple levels of temperature control.

References

[1]
Brooks, D., Martonosi, M., "Dynamic Thermal Management for High-Performance Microprocessors" 2001
[2]
Compute PI to 1M digits (http://nest.cs.uiowa.edu/22CI78f00/weblog/hshen/)
[3]
Expect Home Page (http://expect.nist.gov/)
[4]
Intel Pentium 4 Processor Thermal Specifications (http://www.intel.com/support/processors/pentium4/sb/CS-007999.htm#Specifications)
[5]
Intel Backgrounder: Intel® Centrino#8482; mobile technology gets new Intel® Pentium® M processor based on 90nm process technology with 2M power optimized L2 cache (http://www.intel.com/pressroom/kits/centrino/CMT_backgrounder_doth.pdf)
[6]
Rohou, E., Smith, M.D., "Dynamically Managing Processor Temperature and Power, 2nd Workshop on Feedback Directed Optimization, 1999
[7]
Skadron, K., et. al. "Temperature-Aware Microarchitecture: Extended Discussion and Results" 2003

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  1. Software-based dynamic thermal management for Linux systems

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    cover image ACM Conferences
    ACMSE '05 vol 2: Proceedings of the 43rd annual ACM Southeast Conference - Volume 2
    March 2005
    430 pages
    ISBN:1595930590
    DOI:10.1145/1167253
    Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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    Association for Computing Machinery

    New York, NY, United States

    Publication History

    Published: 18 March 2005

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    Author Tags

    1. dynamic thermal management
    2. operating systems

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    ACM SE05
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    ACM SE05: ACM Southeast Regional Conference 2005
    March 18 - 20, 2005
    Georgia, Kennesaw

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    Overall Acceptance Rate 502 of 1,023 submissions, 49%

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