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Joined: 29 May 2018, 21:24
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 Post subject: Choppy game with high fps
PostPosted: 30 May 2018, 05:04 
I am using the 128x version of sphax with the about 50 mods with their respective patches. The game runs at a high framerate and using only 45-50% of my 10 gb of allocated memory. I tested the game with vanilla textures and the game runs very smooth, but as soon as I turn on sphax the game feels choppy again. I noticed that the client tickrate was 3 ms on vanilla textures but on sphax is was 15 ms. Could this be the cause? If so please let me know how to fix it and any other suggestions on how to fix this. Thank you.

Game version: 1.12.2
Optifine: c9 ultra


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PostPosted: 30 May 2018, 08:56 
The tickrate usually climbs when the game is under strain one way or the other.

You may find that by giving MC more RAM you're actually slowing it down.

Generally you want to find the minimum RAM you can assign to MC and it still run. Then to avoid the Java Garbage Collector constantly scrubbing the memory you can set the minimum to match the maximum.

You may want to disable any extra graphics options like Anti-Aliasing and Anisotropic Filtering. You can also try disabling shadows, smooth lighting, smooth biomes, shaders, etc.

There are also some Java arguments you can use which seem to work fairly well:
-XX:+UseG1GC -Dsun.rmi.dgc.server.gcInterval=2147483646 -XX:+UnlockExperimentalVMOptions -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32M

If after all that you still struggle to get a smooth experience you'll have to use 64x.

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