Hacker News with Generative AI: Microarchitecture

SiFive's P550 Microarchitecture (chipsandcheese.com)
RISC-V is a relatively young and open source instruction set. So far, it has gained traction in microcontrollers and academic applications. For example, Nvidia replaced the Falcon microcontrollers found in their GPUs with RISC-V based ones. Numerous university projects have used RISC-V as well, like Berkeley’s BOOM. However, moving RISC-V into more consumer-visible, higher performance applications will be an arduous process.
Execution units are often pipelined (xoria.org)
In the context of out-of-order microarchitectures, I was under the impression that execution units remain occupied until the µop they’re processing is complete. This is often not the case.
Intel preps Royal Core and Cobra Core microarchitectures for next-gen CPUs (tomshardware.com)
x86-64-v5? The Future Of x86-64 Micro-Architecture Feature Levels (April 2024) (phoronix.com)