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Agner Fog's analysis and guidance is gold to anyone trying to optimise software for a specific microarchitecture.

• beebeepka 4y ago
  I see. Yet, this particular entry only contains tiny amounts of well known information. I feel like this product line has been well covered for months now. Oh well.
  • Strom 4y ago
    The key to understanding the popularity of stories that contain "well known information" is that not everyone has the same life experiences. For every piece of info you know, there are a lot of people who have never heard of it. Including on HN.
  • fancyfredbot 4y ago
    Was it really "well known" that the complex number multiplication opcodes needed the destination to differ from the source or that the intermediate results were rounded to ensure they were commutative?