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