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Comment by criddell | Hacker News Reader

Does Rust give guarantees around paging? Is Rust similar to C++ in that respect?

FWIW, I believe the person you are replying to means "paged" as in "an alert was sent to my pager at 3AM that the entire system is down and I need to wake up and fix it", not the paging in/out of memory.

Oh wow, I totally missed that. Thanks for clearing it up.

At least you won't get paged due to some weird memory bugs. Yes, this happens quite frequently. Worse, it's usually not something local to a single change but interaction across seemingly safe changes.

Is well written Rust code better with respect to paging than well written C++ code?

Rust code that compiles gives you certain guarantees that C++ code that compiles does not. The question isn't is well written code in one language better than well written code in another language. The question is, do I know this code is well written? In Rust you know, in C++ you don't without jumping through a bunch of other hoops.

What I'm trying to get to is if the guarantees include better control over the heap and paging. Everybody wants to tell me C++ likely has bugs which I understand, but it's not what I'm asking about.

Edit: I missed that the original person I responded to was talking about being paged when a problem arises and not about memory performance. I'm still curious though if Rust memory guarantees give the programmer better tools for dealing with memory paging.

Aha, I should've mentioned that it's about getting paged on weekend...

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