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A comment on How many CPU cores can you use in parallel?. Parent comment

Re:How many CPU cores can you use in parallel? by IshKebab on Tuesday December 19, 2023 @04:02PM (#38701493)
No. It's a performance optimisation and generally makes things faster. The only reason to disable it is because of Spectre security stuff.
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Re:How many CPU cores can you use in parallel? by CyberDildonics on Tuesday December 19, 2023 @04:20PM (#38701768)
No. It's a performance optimization when there are more threads than physical cores because it helps hide memory latency behind threading.
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Re:How many CPU cores can you use in parallel? by IshKebab on Wednesday December 20, 2023 @01:26PM (#38711888)
Yes exactly. It's a performance optimisation that generally makes things faster.
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