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A comment on A single line of code made a 24-core server slower than a laptop. Parent comment

Re:A single line of code made a 24-core server slower than a... by dagmx on Friday December 31, 2021 @02:47PM (#29751822)
I think it could be something built upon lifetime analysis. I think a sufficiently complex compiler could use the data available already today to infer thread affinity and other rules.
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Re:A single line of code made a 24-core server slower than a... by hinkley on Friday December 31, 2021 @03:12PM (#29752057)
Basically what I was thinking. In the near term it doesn't even have to be that precise to have a benefit (Rust builds on escape analysis that helped with distributed garbage collection, even when it wasn't that exhaustive). Even ranking threads by suspected degree of interaction is a lot of data.

These definitely don't talk. Offload. These definitely talk. Colocate. These probably talk. Bin pack.

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