this post was submitted on 08 Sep 2024
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Programming

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What languages/frameworks for small, very low usage apps on limited hardware? (feddit.org)
submitted 2 months ago by [email protected] to c/programming
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I have a small homelab running a few services, some written by myself for small tasks - so the load is basically just me a few times a day.

Now, I'm a Java developer during the day, so I'm relatively productive with it and used some of these apps as learning opportunities (balls to my own wall overengineering to try out a new framework or something).

Problem is, each app uses something like 200mb of memory while doing next to nothing. That seems excessive. Native images dropped that to ~70mb, but that needs a bunch of resources to build.

So my question is, what is you go-to for such cases?

My current candidates are Python/FastAPI, Rust and Elixir, but I'm open for anything at this point - even if it's just for learning new languages.

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[–] [email protected] 3 points 2 months ago (1 children)

Hmm, I've never looked too much at benchmarks for this, but is there reason to believe Python would use less memory for a similarly complex project? It still needs a runtime, and it has to do a larger interpretation step at runtime (i.e. it needs to start from human-readable code rather than from bytecode)...

[–] [email protected] 7 points 2 months ago (1 children)

Python caches bytecode, so the translation happens only once.

Java loads everything immediately and keeps it in memory. All beans, all connections, etc. That takes up a ton of memory.

[–] norambna 2 points 2 months ago* (last edited 2 months ago)

Python / FastAPI will be better than Java in your situation and is easy to learn. Go should be even better and is also relatively easy to learn!