Is that AMD or Intel? Intel ivalidates the other CPU's cache line on write. AMD ... | Hacker News

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		mjan22640 on June 18, 2023 \| parent \| context \| favorite \| on: A single line of code made a 24-core server slower... Is that AMD or Intel? Intel ivalidates the other CPU's cache line on write. AMD sends an update to the other CPU's cache line. AMD is supposed to be significantly faster than Intel on a "real" multiprocessor workload.

ComputerGuru on June 18, 2023 | [–]

Don’t know why you were downvoted but yes, AMD uses MOESI and Intel uses MESI.

Ono-Sendai on June 18, 2023 | [–]

AMD Ryzen 9.

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