Ask HN: Was programming more interesting when memory usage was a concern?

Re:Ask HN: Was programming more interesting when memory usag... by throw_away_8080 on Sunday April 02, 2023 @08:50PM (#35417157)

I have changed a program to use a smaller struct in a recursive function call and improved the speed significantly.

I did measure so I can't say why for sure, but it was satisfying to see the exact same algorithm go faster.

I assume it was because it had better cache performance.

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Re:Ask HN: Was programming more interesting when memory usag... by nextaccountic on Sunday April 02, 2023 @09:11PM (#35417320)

A lot of effort is spent to reduce the size of structs in the Rust compiler

https://nnethercote.github.io/2023/03/24/how-to-speed-up-the...

3% and 6% of improvement doesn't seem like much, but at the level of rustc those big wins

Performance of Rustc must be continously tracked (here https://perf.rust-lang.org/) because if you don't proactively fight against bloat, the tendency is that the code will become slower over time (due to new features etc)

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