Reduce max threads used by JMT-MCMT

When doing a stress test to see how the mod would behave when the maximum amount of threads are being used, I noticed an issue with framerate. I believe this is due to too many threads being spawned, causing the render thread to have trouble running often enough and therefore tanking framerates.

A possible solution could be to set the max amount of threads to be something like this (psuedocode):

if (integratedServer) {
    Math.max(availableThreads - 2, 2);
    // use a minimum of 2 threads but a maximum of (CPU threads - 2) so that the
    // render thread, OS, JVM's JIT and GC have room to breathe.
} else {
    Math.max(availableThreads - 1, 2);
    // servers don't have a render thread and not many cores, they also usually have
    // a headless OS, so only deduct 1 from the available CPU threads to make better
    // use of the HW while still giving GC, OS, JIT and plugins room to breathe.
}

Entity MT enabled:

Entity MT disabled:

By the way, thank you for your efforts on this mod - it’s impressive how this mod manages to achieve so much more server-side performance compared to Vanilla with a decent amount of cores!

[jediminer543]

I’ll look into it

I’ve currently been deep diving into trying to make patching away fast util less of a pain

And I think I’ve finally done it, which is good

Capping the threadcount is super easy so I’ll try doing that next week

And thanks for the positive feedback

[jediminer543]

This functionality is implemented with paraMaxMode; so I’m closing this issue

Unless I’ve goof’d in which case someone re-open this or open a new one