GCC 10 vs. GCC 11 Compiler Performance On AMD Zen 3

Written by Michael Larabel in Software on 24 February 2021 at 09:20 AM EST. Page 3 of 4. 4 Comments.

The GraphicsMagick imaging benchmarks were flat overall or small improvements with some of the tested CFLAGS/CXXFLAGS but the "-O3 -march=native" performance seemed to be particularly hard hit under GCC 11.

Coremark was also pointing to a drop with GCC 11 under the "-O3 -march=native" test configuration.

The da1d performance is looking better on GCC 11 when moving beyond base x86-64 targeting.

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