Where do folks keep up with and ask questions about sota performance code (e.g. simd, hashmap tuning, allocators, Dan Lemire, gaming code optimizations, etc.)?<p>Stackoverflow? Particular forums?
Agner Fog has written manuals regarding software performance. He also has a "links" section on his site which includes some forums: <a href="https://www.agner.org/optimize/#links" rel="nofollow">https://www.agner.org/optimize/#links</a>