Turbo Boost Max 3.0 Patches Updated, Now On By Default For Multi-Socket Systems

Written by Michael Larabel in Intel on 11 November 2016 at 03:36 PM EST. 13 Comments
Intel's Turbo Boost Max Technology 3.0 (ITMT) patches for the Linux kernel have been pushed to their eighth revision as it prepares for mainline integration.

New patches of the Turbo Boost 3.0 support were published last month while now they've been succeeded by these "V8" patches.

Previous versions of the patch only enabled ITMT 3.0 by default on single-socket systems while with the new patches multi-socket systems supporting Turbo Boost Max 3.0 also see it turned on out-of-the-box. The V8 patches also add some other code changes, the i386 build has been fixed, and other code changes.

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. TBM 3.0 was added to Broadwell-E CPUs and will also be found with other future Intel CPUs. With the Core i7 6800K as an example, its base frequency is 3.4GHz, the standard turbo frequency is 3.6GHz, and its Turbo Boost Max Tech 3.0 frequency is 3.8GHz.

These Turbo Boost Max 3.0 V8 patches can be found on the kernel mailing list but hopefully we'll see them merged for the Linux 4.10 kernel.
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