Intel Ivy Bridge Is Okay On Linux Power Usage
Written by Michael Larabel in Software on 31 July 2012. Page 3 of 3. 1 Comment

The power consumption when upgrading from the Linux 3.4 to 3.5 kernel also went unchanged when the Intel HD 4000 graphics were being utilized in Xonotic. The Linux 3.2 kernel results are unavailable since the Intel DRM driver on Linux 3.2 was being unstable for this test.

When looking at the overall results of the system power consumption for these results plus various other Phoronix Test Suite test profiles and some idling points between them, there really is not much change for the Core i7 3770K Ivy Bridge system's power consumption between Linux 3.2 and Linux 3.5. This is good to see, though further performance/power enhancements are always welcome. We may see a small reduction in the Ivy Bridge processor power consumption in the Linux 3.6 kernel thanks to the Intel CPU Idle driver now supporting IVB, but those results will be saved for another article.

More Linux power consumption benchmarks will be published in early August for looking at possible Linux kernel power regressions.

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Michael Larabel is the principal author of 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 automated benchmarking software. He can be followed via Twitter or contacted via

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