GCC 8 & LLVM Clang 6.0 Compiler Performance On AMD EPYC - November 2017
Written by Michael Larabel in Software on 8 November 2017. Page 4 of 4. 15 Comments

The Redis performance is strangely mega faster with LLVM Clang 6.0. These results are reproducible across multiple runs but do not yet have any explanation for the significant speed-up with Clang 6 and Redis.

GCC still leads with C-Ray multi-threading and is slightly faster with GCC 8 than GCC 7.2.

The same goes for LAME MP3 encoding.

That's about it for right now with these latest C/C++ compilers tested on AMD EPYC. More znver1 tests on other AMD Ryzen and Threadripper processors coming up soon, among other optimization tests and new benchmarks for Zen. All of these compiler results and details via this OpenBenchmarking.org result file.

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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 20,000 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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