Intel Cascade Lake Xeon Benchmarks With GCC 8 vs. GCC 9 Compilers

With today's release of the GCC 9 code compiler among the many features offered in this annual update to the GNU Compiler Collection is the initial "cascadelake" target/tuning support that enables AVX-512 VNNI tuning by default as the most notable change over the former "skylake-avx512" GCC target. Anyhow, for those wondering how the GCC 9 performance differs compared to last year's GCC 8 compiler release, here are some preliminary benchmarks...