Scheduler Changes In Linux 3.20 Has Micro-Optimizations, Might Yield Power Savings
Written by Michael Larabel in Linux Kernel on 9 February 2015 at 08:32 AM EST. Add A Comment
LINUX KERNEL --
As usual, Ingo Molnar is in early with his changes for the various subsystems he maintains for the next kernel cycle. With Linux 3.19 being released last night, this morning are many pull requests from Ingo for Linux 3.20.

The changes going in through Ingo Molnar's branches aren't incredibly exciting this round, but it looks like the scheduler tree updates have the potential to be semi-exciting. In particular, the kernel scheduler changes have minor micro-optimizations, various fixes and enhancements, and a idle-poll handler fix that has the potential to result in power-savings.

Details on the scheduler feature pull for Linux 3.20 can be found via this mailing list pull request.

Aside from the scheduler work, the perf pull has support for AMD range break-points. Ingo's various x86-related pulls don't seem to have much in the way of changes exciting to end-users for Linux 3.20.
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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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