this post was submitted on 07 Mar 2025
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[โ€“] [email protected] 8 points 2 days ago (4 children)

Why write a server in rust? Java is already memory safe ๐Ÿค”

[โ€“] [email protected] 14 points 2 days ago

Probably performance - the Java server takes up a lot of memory and CPU for what it does. The base implementation first started in 2011, so it wasn't exactly designed to be multithreaded or parallelized because most games were still largely single-threaded at the time. Rewriting it from scratch in a different language probably helps with that

[โ€“] [email protected] 19 points 2 days ago (1 children)

I guess it can be a fun hobby project to learn Rust

[โ€“] [email protected] 4 points 2 days ago

Tbh writing a Minecraft server isn't anywhere on my list of projects to write to learn a new language but you also aren't wrong, just wouldn't be what I'd choose

[โ€“] [email protected] 10 points 2 days ago

Counterpoint: Why the fuck not?

[โ€“] [email protected] 7 points 2 days ago (1 children)
[โ€“] [email protected] 5 points 2 days ago (2 children)

It's not like the Java server is slow tho, it only becomes a problem when mods are added and rust servers can't run Java mods so it's a moot point. Maybe if you want an insanely large number of players on a single server?

[โ€“] [email protected] 7 points 2 days ago (1 children)

It is slow, and a massive memory hog. Its not exactly javas fault (i mean it is to a point). Its just minecraft's code is trash. Mods are the only thing that keeps people on using java.

[โ€“] [email protected] 3 points 2 days ago (1 children)

Well yeah, we all know Minecraft's code is terrible. I just never felt like it was noticeable without mods

[โ€“] [email protected] 3 points 2 days ago (1 children)

Maybe not in single player, but if you try putting more than a few dozen players on one vanilla server, the performance is going down the drain

[โ€“] [email protected] 2 points 2 days ago

I wasn't referring to single player

[โ€“] [email protected] 6 points 2 days ago (1 children)

It's not like the Java server is slow tho, it only becomes a problem when mods are added

Lol, the java server is dogshit slow, it just doesn't show until you have a big enough map if you're not running mods. I played on a semi-public server and was a mod back in the day, and wed regularly have to do world resets because it started slowing down when people got far enough away from the spawn. Hell, even with mods it doesn't start to slow down immediately, it waits until you've done a lot in your world before it starts chugging like dad after work.

[โ€“] [email protected] 3 points 2 days ago

Huh, not my experience but last time I operated a public server was beta 1.7 days. It was bukkit which I believe was a separate impl which maybe was faster? But I don't recall having nearly that many issues, was vanilla outside of bukkit plugins though.