This week at LWN: The cpuidle subsystem

Posted by Scott_Ruecker on May 11, 2010 12:11 PM EDT
LWN.net; By Jonathan Corbet 		Mail this story
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Your editor recently had cause to dig around in the cpuidle subsystem. It never makes sense to let such work go to only a single purpose when it could be applied toward the creation of a kernel-page article. So, what follows is a multi-level discussion of cpuidle, what it's for, and how it works. Doing nothing, it turns out, is more complicated than one might think.

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