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Linux: Understanding Power Consumption

May 15, 2007, 21:00 (0 Talkback[s])

"'What's eating the battery life of my laptop?' Arjan van de Ven rhetorically asked in an announcement about a new PowerTOP utility released by Intel for detecting what Linux programs and kernel tunables are resulting in the most power consumption. 'Why isn't it many more hours? Which software component causes the most power to be burned? These are important questions without a good answer... until now.' Arjan went on to describe the new tickless kernel feature that was merged in 2.6.21-rc1 [story] noting that it can help reduce power consumption by allowing the CPU to remain idle for longer periods, 'current processors save a lot of power if they are idle for long periods, which translates into a longer battery life for your laptop, or a lower energy bill for your datacenter...'"

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