Announcing cupid - native Rust code to access the X86 and X86_64 CPUID instruction #rustlang https://www.reddit.com/r/rust/comments/3e0ci8/announcing_cupid_native_rust_code_to_access_the/ …
@awesomeintheory TIL! I saw it serializes instructions, which I’m sure causes stalls. I wouldn’t have thought it would be too bad though.
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@JakeGoulding It's pretty bad for what people often use it for (per-core counters, for example) which rely on lack of serialization.Thanks. Twitter will use this to make your timeline better. UndoUndo
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