More AMD Zen Tuning Patches Posted For GCC
Written by Michael Larabel in AMD on 11 October 2017 at 06:10 AM EDT. 6 Comments
AMD --
A few days back I initially wrote about a SUSE developer working on Zen tuning patches for GCC. That work has continued with more compiler patches coming for optimizing the GNU's compiler for Ryzen / Threadripper / EPYC processors.

Jan Hubicka of SUSE has continued posting more patches for tuning Zen for GCC and underlying code improvements for GCC in dealing with CPU-specific optimizations.

Among the work includes simplifying some code, avoiding 512-bit memcpy/memset for AVX-128 optimal targets, disabling Bulldozer dispatch scheduling, and better managing around CPU specific optimizations.

I'll be running some fresh GCC benchmarks on Zen via Ryzen or EPYC shortly, once seeing what other patches Hubicka might land in the next few days. This work is being queued in GCC 8, which will be released as stable in H1'2018 as GCC 8.1.

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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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