Linux 4.10 Is Landing Intel Turbo Boost Max 3.0 (TBM3)
Written by Michael Larabel in Linux Kernel on 12 December 2016 at 06:31 AM EST. 1 Comment
LINUX KERNEL --
The scheduler area work is another one of Ingo Molnar's interesting pull requests submitted already for Linux 4.10. Exciting us the most about the scheduler changes for this next kernel version is finally having mainline support for Intel Turbo Boost Max Technology 3.0.

For months we have been following the patches for Turbo Boost Max 3.0 on Linux following Intel's Broadwell-E CPU release. At first Intel PR said there would be no TBM3 on Linux but the patches ended up coming and now the support is finally there for Linux 4.10.

The scheduler changes for Linux 4.10 have the TBM3 enablement work as well as introducing the concept of "better cores" to the scheduler to prefer the scheduling of single-threaded workloads on these superior cores. Turbo Boost Max 3.0 delivers 15% better single-threaded performance, at least according to Intel on Windows, and is about boosting the performance for single-threaded workloads by moving them to the fastest core at a higher frequency. We will be seeing TBM3 on more Intel CPUs moving forward.

More details on the 4.10 scheduler changes overall via this pull request.
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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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