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Intel Releases Linux Thermal Daemon

Intel

Published on 10 May 2013 02:48 PM EDT
Written by Michael Larabel in Intel
20 Comments

Intel has announced the release of an open-source Linux Thermal Daemon package for Linux. Intel's Linux Thermal Daemon is for monitoring and controlling platform temperatures.

An Intel representative contacting Phoronix on behalf of their Open-Source Technology Center explains:
The demand for high performance in increasingly thinner and smaller computing systems such as laptops, ultrabooks and tablets creates the need for more ways to manage and control system heat dissipation. Common techniques for heat dissipation include heat sinks, fans, and other forms of cooling devices, but, as system form factors shrink, it’s not efficient to just rely on traditional hardware, BIOS and OSPM methods to cool the system.



The Linux Thermal Daemon monitors and provides close loop control of CPU temperatures, particularly for small form factor, thermally sensitive and often fanless systems. When CPU temperatures exceed dynamically adjusted thresholds based on the maximum CPU temperature settings, the daemon proactively cools the CPU by controlling performance and thermal states. To control these states, it uses the latest cooling and P state drivers developed by Intel and submitted to the upstream Linux kernel. If these drivers are not available, then the daemon will revert to x86 model specific registers and the Linux “cpufreq subsystem” to control system cooling.
This project has been in the works since last December and the first code drop is now available at Intel OTC's 01.org.

For those wanting more details on the Intel Linux Thermal Daemon, there's more within the project's documentation.

About The Author
Michael Larabel is the principal author of Phoronix.com and founded the web-site in 2004 with a focus on enriching the Linux hardware experience and being the largest web-site devoted to Linux hardware reviews, particularly for products relevant to Linux gamers and enthusiasts but also commonly reviewing servers/workstations and embedded Linux devices. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics hardware drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated testing software. He can be followed via and or contacted via .
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