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A comment on How could the early Unix OS comprise so few lines of code?. Parent comment

Re:How could the early Unix OS comprise so few lines of code? by dezgeg on Monday September 11, 2023 @09:06AM (#37466665)
I'd guess that back then system call overhead was lower than with modern CPUs with deep pipelines, speculation and their vulnerability workarounds.
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Re:How could the early Unix OS comprise so few lines of code? by pixl97 on Monday September 11, 2023 @01:47PM (#37470851)
I'm thinking most stuff was designed around single core performance. Lots of drivers had big'ole gigantic locks which really killed multi processor performance. These days with modern CPUs with a ton of cores the complexity has increased greatly.
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Re:How could the early Unix OS comprise so few lines of code? by paulddraper on Monday September 11, 2023 @09:47PM (#37476121)
It wasn't lower. But people put up with it.

Because they had to; there just wasn't a viable alternative

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