Intel RC6 Power Savings Can Go Deeper
Written by Michael Larabel in Intel on 30 November 2011 at 10:21 AM EST. 5 Comments
It turns out that the Intel RC6 power-savings feature can be pushed even further.

A patch was published that allows Intel RC6 to be pushed into its deepest state under Linux for conserving system power consumption while also improving performance in some workloads (as shown in the aforementioned Phoronix article), but what's to be on by default in the Linux 3.2 kernel (and can be manually toggled for older kernels) isn't the deepest.

The deepest state should drop the power consumption by another half Watt or so, depending upon the hardware.

However, it seems that there may be some caveats with this deepest Intel RC6 power savings state as is being discussed right now on the Intel Linux graphics mailing list.
About The Author
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Michael Larabel is the principal author of Phoronix.com and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated benchmarking software. He can be followed via Twitter or contacted via MichaelLarabel.com.

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