Published at LXer:
Ahead of the Linux 3.13 kernel merge window in a few weeks time, Intel is seeking review of a proposed Power Supply Charging Framework for the Linux kernel.
It's been a while since last hearing anything from Intel engineers about their proposed Power Capping Framework or Running Average Power Limit driver for the Linux kernel, but that changed today. New patches have been released for the power monitoring and limiting kernel code.
Near the beginning of the month I wrote about an Intel developer finding a Linux kernel power regression increasing the system's power use by 50 Watts. After extensive testing and investigating, the issue has been fixed ahead of the Linux 3.13 kernel release and is proposed for stable point releases on the 3.10, 3.11, and 3.12 kernels.
At the request of many Phoronix readers, here are some new battery power usage benchmarks on every recent Linux kernel release from Linux 3.7.0 to Linux 3.13 Git. Has an Intel "Ivy Bridge" Ultrabook's power consumption changed much due to the continuous kernel churn? Here's the answer...
The Linux 3.11 kernel hasn't even been released yet, at which point the Linux 3.12 kernel merge window will then open, but Intel's Open-Source Technology Center is already busy at work on features not likely to land until Linux 3.13.
The way Linux development has worked for the last several years has been relatively straight forward. Every six to 10 weeks there is a new Linux kernel, with each kernel requiring six to eight release candidates.
The merge window for the Linux 3.12 kernel is coming to an end and 3.12-rc1 should be released soon. Here's an overview of the interesting merges that happened over the past two weeks as new features for Linux 3.12.