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Phoronix Test Suite

OpenBenchmarking.org

Ubuntu's Power Consumption Tested

Michael Larabel

Published on 14 October 2007
Written by Michael Larabel
Page 4 of 4 - 16 Comments

With the CPU temperature for the Intel Pentium M reported by ACPI (/proc/acpi/thermal_zone/THM0/temperature) when running off AC power and idling, the average temperature with all of the Ubuntu releases were pretty close to 54C.

These power tests are just intended to be a brief look at Ubuntu's average power consumption over the past six Ubuntu releases during the past two and a half years. It is also important to note that all of these tests were done from a single Intel Centrino laptop. Depending upon your hardware, the power performance may differ. While the power efficiency is improving in Linux, it is being outweighed by more and more processes running on the Linux desktop. These tests were done from a stock configuration. If you're running Ubuntu 7.10 on a mobile device you can maximize your power efficiency through Intel's PowerTOP, eliminating extra processes, and other performance tweaks. In a future Phoronix article we may look more in-depth at maximizing your mobile Linux power performance.

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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