search

brucethemoose / Minecraft-Performance-Flags-Benchmarks

Sane, Benchmarked Java Flags and Tweaks for Minecraft
MIT License
1.31k stars 28 forks source link

Numa Not Working? #33

Closed JustCauseWhyNot closed 1 year ago

JustCauseWhyNot commented 1 year ago

I'm on gentoo and have numa compiled in the kernel, but for some reason according to prism's log Numa Support isn't on. I'd appreciate any help available. Also how do I get garbage collector to stop having/causing lag spikes ranging between 150-400ms when using 32 render distance?

radiomike commented 1 year ago

Unless your system is multi-socketed - has more than one cpu - numa probably doesn't apply.

As far as long gc with 32 render distance, either assign more ram, or reduce your view distance. 32 view distance is a huge number of loaded chunks (4096 chunks vs 576 for the default view distance of 12) and as a result has a huge impact on memory usage. If you are playing modded, you can look at the spark mod spark healthreport --memory to see the difference. You can also use spark gc or spark tickmonitor to see what type of gc you are seeing - if the lag spikes are from old gc then you should definitely increase your assigned ram.

JustCauseWhyNot commented 1 year ago

Alrighty. Thank you very much for the support.