alt.hn

8/23/2026 at 10:35:37 PM

GCC Patch Adjusting AMD Zen 5 Misprediction Cost Nets 12% Win in Benchmark

https://www.phoronix.com/news/AMD-Zen-5-Mispredict-Cost

by Alephinitesimal

8/24/2026 at 12:40:38 AM

I didn't try lto but on strix point I had to use gcc 14 (not what Ubuntu 24.04 shipped with but still in the ppa) to get march native and it made my program maybe 30% faster. I don't remember if it was scalar vs simd or just better simd, but it was great. Good thing I'm a bit proponent of recent but not completely bleeding edge tools. And march native. I paid for the avx 512, I want the avx 512.

by Neywiny