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Very Bad FPS on relatively High-End PC

Open LukeAWakefield opened this issue 3 years ago • 10 comments

Modpack Version

1.0.4

Describe your issue.

When in game, I get very bad FPS (as low as 10fps and generally no higher than 30-40 at any time).

PC Spec:

  • CPU: 16x 11th Gen Intel(R) Core(TM) i9-11900k @ 3.50GHz
  • Display: 2560x1440
  • NVIGIA GeForce RTX 3080/PCie/SSE2
  • 16GB RAM (2x8gb) DDR4 3200mhz
  • GPU Drivers up to Date (GeForce Game Ready Driver Version 511.79)

Java Version 17.0.1 64Bit Allocated Memory: 7040MB

I've tried other 1.18.1 Modpacks and had no issues with FPS, such as All the Mods 7 which has an even bigger modlist and it runs comfortably above 100+FPS.

Enigmatica 8 Screenshot

Crash Report

No response

Latest Log

No response

Have you modified the modpack?

No

User Modifications

No response

Did the issue happen in singleplayer or on a server?

Singleplayer

LukeAWakefield avatar Feb 19 '22 13:02 LukeAWakefield

Oh I should also say that in Task Manager, none of my CPU, GPU, Memory or Disk are peaking whilst playing. Around 20-30% Total CPU Usage, 75% Total Memory and 20% Total GPU Usage.

LukeAWakefield avatar Feb 19 '22 13:02 LukeAWakefield

Any chance you have vsync on?

Darkere avatar Feb 19 '22 13:02 Darkere

Yeah tried V-Sync off. Even tried the video settings in the attached screenshot and the frames jump between 40-70fps but there are still horrible microstutters. (And a render distance of 2 chunks is not exactly playable lol)

2022-02-19_13 51 52 .

LukeAWakefield avatar Feb 19 '22 13:02 LukeAWakefield

Would you mind removing the mod FPS Reducer and see if the issue persists? :)

NielsPilgaard avatar Feb 19 '22 14:02 NielsPilgaard

That's the one! Runs much, much better now. Getting 100+FPS and no stutters.

Thank you both for your help. And so quickly too!

LukeAWakefield avatar Feb 19 '22 14:02 LukeAWakefield

My pleasure, now to find out why it's reducing FPS while you're active 🤔

NielsPilgaard avatar Feb 19 '22 17:02 NielsPilgaard

FPS reducer reduces the fps to 1 frame per second or even less IIRC? I don't think it was the actual cause.

Darkere avatar Feb 19 '22 17:02 Darkere

It's highly configurable, it can't be used for general throttling too iirc.

NielsPilgaard avatar Feb 19 '22 17:02 NielsPilgaard

By default, if there is no operation for 5 minutes the frame rate will drop to 10.

Pressing [PAUSE] key reduces FPS manually. (new feature in v1.16)

ok then... maybe we can unbind that to avoid people accidently pressing the button?

Darkere avatar Feb 19 '22 17:02 Darkere

I thought I already did that 😅

NielsPilgaard avatar Feb 19 '22 17:02 NielsPilgaard