Yeah. I don't know how often interrupts happen to know how easy this would be to... | Hacker News

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dataflow on Jan 3, 2025 | parent | context | favorite | on: The Alder Lake SHLX Anomaly

Yeah. I don't know how often interrupts happen to know how easy this would be to control for, but it certainly sounds like it could be tough. I suppose one way to mitigate these though is e.g. taking a min() of the execution times rather than the average?

Bulat_Ziganshin on Jan 3, 2025 [–]

except that we need max() here :)

dataflow on Jan 3, 2025 | [–]

Huh, why max()? Generally microbenchmarks want min() (or close to it).

Bulat_Ziganshin on Jan 3, 2025 | | [–]

because THIS code becomes faster once RCX is saved and restored during the interrupt call

dataflow on Jan 3, 2025 | | [–]

Oh right, my bad, thanks. Totally escaped me when I wrote that :-)

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