GCC 9 Compiler Tuning Benchmarks On Intel Skylake AVX-512

Written by Michael Larabel in Software on 8 March 2019 at 12:20 AM EST. Page 3 of 4. 28 Comments.

In applications that are already hand-tuned and optimized for particular microarchitectures, there isn't much to gain out of the compiler flags.

Google's libvpx vpxenc encoder did get boosted by the Skylake-AVX512 targeting.

LTO did help the performance with Himeno.

Understandably, the more optimization passes that need to run, the longer the compilation process.

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