FoamFix

FoamFix is an optimization mod that significantly enhances performance in modded Minecraft through targeted and effective solutions.

Key Features

FoamFix specializes in optimizing the following key aspects:

Reduced Memory Usage (for Minecraft versions 1.8 and above) — this was the original and most important reason for creating the mod. In heavily modded setups, RAM consumption can decrease by up to 50%!

Improved TPS Performance, especially on larger servers. The fixes for "ghost" chunk loading and network improvements are less noticeable in single-player but significantly enhance multiplayer world stability.

Additionally, the mod includes various minor optimizations. The complete feature list can be found in the foamfix.cfg configuration file.

Frequently Asked Questions

Question: My performance worsens after installing FoamFix!

Answer: First, update the mod to the latest version. If the issue persists — contact the developer.

Question: Do I need to install FoamFix on both server and client?

Answer: No, the mod can work separately on either the server or client side.

Question: Are different FoamFix versions compatible between server and client?

Answer: Yes, this is acceptable.

Question: Why does FoamFix exist for Minecraft 1.7.10?

Answer: Although the mod was originally created for versions 1.8+, some features have been adapted for 1.7.10.

Question: Is FoamFit suitable for vanilla Minecraft?

Answer: No, since most optimizations are specifically related to modded gameplay.

Additional Recommendations

For maximum performance, we recommend:

• Enable the alwaysSetupTerrainOffThread parameter in the forge.cfg file (starting from version 0.6.3, FoamFix does this automatically)
• Increase the dormantChunkCacheSize value in forgeChunkLoading.cfg to resolve "ghost" chunk loading issues
• Disable mipmaps (set Mipmap Levels to 0) on some AMD graphics cards to improve FPS
• Set max-tick-time=0 on dedicated servers to prevent crashes

Potential Issues

Common errors and their solutions:

• NoSuchMethodError in FoamFix 0.9.6+ — update Forge or use FoamFix 0.9.5
• IllegalArgumentException — check if the error occurs without FoamFix
• Issues with SpongeForge — disable coremod.optimizedBlockPos in settings

Support

Bug reports are only accepted through the GitHub issue tracking system.

The mod does not guarantee compatibility with the following projects:

• FastCraft 2
• NotEnoughIDs
• OptiFine
• Sponge
• TexFix
• Other proprietary optimization mods