More AMD Zen 4 Tuning Ongoing For GCC 13 Compiler

[phoronix]

Phoronix: More AMD Zen 4 Tuning Ongoing For GCC 13 Compiler

GCC compiler expert Jan Hubicka at SUSE began working on AMD Zen 4 compiler tuning patches that began landing in December for the GCC 13 compiler that will debut as stable in a few months. It looks like the work isn't over on Znver4 tuning with another patch being sent out today for fine-tuning the latest AMD CPU microarchitecture...

https://www.phoronix.com/news/More-Znver4-Tuning-GCC-13

[Danny3]

Did they finis with the optimizations for Zen 2 and 3?
Is AMD contributing to any of these optimizations or it's always the SUSE developers?

[mlau]

Did they finis with the optimizations for Zen 2 and 3?
Is AMD contributing to any of these optimizations or it's always the SUSE developers?

Does it matter? What if AMD contracted SUSE to do it?

[coder]

Does it matter?

I think the main thing that matters is that it's done well. And, TBH, based on the comments I've seen in the series of GCC Zen4 tuning patches, I'm not expecting wins comparable to what we've seen in the AOCC benchmarks.