[Bug target/109812] GraphicsMagick resize is a lot slower in GCC 13.1 vs Clang 16 on Intel Raptor Lake

[edison_chan_gz at hotmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109812

edison <edison_chan_gz at hotmail dot com> changed:

           What    |Removed                     |Added
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                 CC|                            |edison_chan_gz at hotmail dot com

--- Comment #22 from edison <edison_chan_gz at hotmail dot com> ---
for 607.cactuBSSN_s,if use preENV_GOMP_CPU_AFFINITY = 0-23 in CPU2017 .cfg, all
 p-core(i9-13900k) usage will down to 15%(the e-core almost 100%), if comment
out it all p-core usage will up to 60%.

607.cactuBSSN_s on i9-13900K
gcc 14.1

preENV_GOMP_CPU_AFFINITY = 0-23：   60.1 (-41.7 % slower)
# preENV_GOMP_CPU_AFFINITY = 0-23： 103

but for AMD Zen4(+) that maybe another story so far(AMD Zen4 need
preENV_GOMP_CPU_AFFINITY to make the threads run on high performance core
first).