Phoronix: Intel Introduces PowerClamp Driver For Linux
Linux kernel developers have created an Intel PowerClamp driver, which is an experiment with idle injection for Intel hardware to take advantage of power-efficient package-level C-states for power capping and passive thermal control. Separately, Intel RAPL (Running Average Power Limit) support is now exposed through TurboStat...
http://www.phoronix.com/vr.php?view=MTIyOTE