Category: power consumption

Reduce Linux power consumption – 3 part series

Reduce Linux power consumption, Part 1: The CPUfreq subsystem This three-part series is your starting point for tuning your system for power efficiency. In Part 1, get up to speed on the components and concepts you need to fine-tune a Linux-based System x server for power efficiency. Learn how to enable the Linux CPUfreq subsystem, get instruction on C and P states, and determine which of the five in-kernel governors you need to boost power efficiency on your system. 15 Sep 2009

Reduce Linux power consumption, Part 2: General and governor-specific settings This three-part series is your starting point for tuning your system for power efficiency. In Part 2, follow a step-by-step guide on the general settings of the Linux CPUfreq subsystem and get more details on the five in-kernel governors — performance, powersave, userspace, ondemand, and conservative — and their settings. 23 Sep 2009

Reduce Linux power consumption, Part 3: Tuning results This three-part series is your starting point for tuning your system for power efficiency. In Part 3, the author compares the performance of the five in-kernel governors in both tuned and untuned states to show you how to optimize a Linux-based System x server. 07 Oct 2009

Saving power with Linux on Intel hardware

In the last two months, Linux has made an enormous step forward in terms of power consumption and battery life. Linux kernel community developers such as Thomas Gleixner and Ingo Molnar and various Intel developers joined hands in developing a set of patches to push Linux to the next level with the Tickless Idle feature and a series of follow on developments that cash in the potential of the tickless core infrastructure.

Saving power with Linux on Intel hardware

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