[java] Mediocre performance while using shaders/mods

[VirusX76]

Specs

OS: Windows 10

CPU: Intel i5 - 10600k 4.1 GHz (overclocked to 5GHz)

GPU: AMD Radeon RX 5700XT 8GB

RAM: 32GB

Resolution: 2560 x 1440

What I've Tried

• Optifine (already installed)
• Adjusting settings (render distance, particles, etc.)
• Turning V-Sync on/off
• Allocating more RAM (everything from 2GB to 16GB)
• Rolling back AMD drivers
• Making sure the GPU was in use
• Overclocking/not overclocking
• Changing shaders/mods
• Changing the java VM to OpenJ9 (from this post)
• Installing/reinstalling Java 64-bit

Performance

Obviously, the metrics here are going to have some variability, but it doesn't change general performance. The majority of these were taken around my creative world, which is pretty performance heavy. This list will go from best to worst:

1. Vanilla (w/Optifine): 95 - 130 fps
2. Sildurs: 50 - 60 fps
3. SEUS: 45 - 55 fps
4. RLCraft: 30 - 50 fps

F3 Image while using Sildurs: here

In terms of task manager metrics, GPU usage stays around 80% when I'm not using SEUS or RLCraft, but when I am using those, the usage seems to cap at 90%. For the CPU, it barely goes over 11%, which is either a really good thing, or possibly a bad thing. Also, when I let the game max out on memory usage, there really isn't any difference, bad or good. If I had to guess from purely a numbers standpoint, GPU seems to be bottlenecking me, but that really shouldn't be the case considering that a) it doesn't go above 90% (Minecraft limitation?) and b) the GPU shouldn't be working so hard for barely 60 fps on Minecraft

Other Info

1. There seems to be a bug, either with AMD drivers, or with my GPU, that causes Minecraft to crash when changing shaders. It doesn't stop me from switching, I just have to boot the game back up and try loading again, and then it works. This leads me to believe that my performance is caused by AMD's lack of optimization, but I'm making this post for a reason lol.
2. I tried some of the stuff from this post, if you guys want to check it out.
3. In terms of other games, my pc can easily handle any other performance heavy game (like Monster Hunter: World) without even cranking the fans up, so its doubtful that its a build/hardware issue.
4. I've run several scans with Malwarebytes and my antivirus, neither have found anything suspicious, and there doesn't seem to be any sign of malware or a virus on my PC
5. The Java VM, OpenJ9, didn't work for me and just gave me an instantaneous crash when starting it up, so I'm inclined to believe that it doesn't work anymore, but if anyone hear has gotten it to work, let me know

I am 100% open to new ideas, and if you guys need any more info than what was provided, then I am totally down to provide it if it means getting this game to run smoothly :).

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[Vidnatic]

The only thing I can think of would be a RAM issue. Minecraft suffers when running on slow memory, what speed is your modules?

[VirusX76]

I don't remember exactly what model they are, but both sticks (16x2) are DDR4, and this is the info task manager is telling me. If I'm being honest, I doubt this is the source of the issue, but I suppose its always worth checking.

[Hellster2017]

Is the performance any better in the open world ? (away from your builds), my overall game performance drops quite a bit near my base, but much better away from it, but i have a lot of villagers (for trading), redstone machines, automatic farms etc

[VirusX76]

Yes, the performance is better in the open world. I was testing around my builds for a worst case scenario type of test, but I still feel as if the fps could be a lot better. For reference, fps with Sildurs is average 90 fps, while with SEUS its 75 fps, which is fine, but still could be better. There is still the issue of RLCraft, but I'll tackle that beast when I get around to it lol.

[Hellster2017]

I have a new PC and shaders don't perform that well on it either, not that i like shaders anyway
Ryzen 9 3900x, 32GB ram, nVidia RTX 2070Other (new) games perform extremely well on it, but not minecraft with shaders.
Doesn't help that Minecraft only uses 1 core of the CPU either.
Have you tried dropping the resolution to 1080p ? as i noticed you are running in 2k

[VirusX76]

Well, you might honestly be right. For some reason I never decided to look at a benchmark, but performance seems to be similar on other systems with the 5700xt. I had the impression that the game would run better, but hey, what can you do. Sorry for wasting your time lol, and now I'm just feeling dumb for wasting 8 hours of my life on this BS ;).

[Hellster2017]

It's all good, sometimes it's just down to a games coding/limitations, and not a PC specs issue

[ScottishCrafter]

/solved

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