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by kllrnohj 2421 days ago
> But there are diminishing returns to adding more cores past a certain point which will depend on your codebase and compiler. If your builds are at 100% CPU utilization most of the time then you will probably see pretty large gains, but sometimes a significant chunk of the time ends up being bottlenecked by single threaded performance.

You should check out Phoronix's Rome benchmarks. Compilers seem to love L3 cache, and the new Threadripper parts have 128MB of it. https://www.phoronix.com/scan.php?page=article&item=amd-epyc...

The Epyc 7502 in that chart is going to be roughly equivalent to the 32-core Threadripper 3 announced today. Both are 32 cores with 128MB of L3, but the Threadripper part has a much higher base & turbo clock speed so it'd compile even faster. Probably.