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Better ACPI, Power Management For Linux 3.12 Kernel

Linux Kernel

Published on 04 September 2013 02:26 AM EDT
Written by Michael Larabel in Linux Kernel
6 Comments

The Linux 3.12 kernel will feature improvements to ACPI and power management in general thanks to recent developments.

The ACPI/PM pull request was merged on Tuesday for the Linux 3.12 kernel merge window. Some of the notable highlights include:

- The ACPI PCI hotplug subsystem has been reworked and now includes support for Intel Thunderbolt on systems that use ACPI for signalling of Thunderbolt hot-plug events.

- ACPI core code clean-ups.

- ACPICA was updated to 20130725 and includes fixes, new support, and other improvements.

- ACPI and Xen should now work better to reduce hardware sleep work.

- ACPI fixes.

- The cpufreq on demand governor should now choose target frequencies proportionally to load.

- Various other ACPI and power management improvements.

More details can be learned from the ACPI/PM Linux 3.12 pull.

About The Author
Michael Larabel is the principal author of Phoronix.com and founded the web-site in 2004 with a focus on enriching the Linux hardware experience and being the largest web-site devoted to Linux hardware reviews, particularly for products relevant to Linux gamers and enthusiasts but also commonly reviewing servers/workstations and embedded Linux devices. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics hardware drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated testing software. He can be followed via and or contacted via .
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