Minecraft Forums

Hey there! So I'm having issues with lag spikes every 5 seconds or so. I have installed optifine, and it works well in vanilla Minecraft, however it stops working as soon as I try to play on my Forge profile with other mods. Any help would certainly be appreciated!

Also, I've tried lowering the settings as far as they can go, it does nothing to help.

I hate to post again, but I've searched and found similar issues weeks older with no answer, so I'd hate for this to fall off the radar. Any help at all would be greatly appreciated.

To properly help, we may need a list of all mods you have, or a ForgeModLoader-client-0.log. If neither of them are available, open the log folder and copy the contents of latest.log here, using spoilers when doing so. The Forge log is just so I can see how many mods you have, etc.

Thanks for bumping this, I wouldn't have caught it otherwise.

I'm just glad someone caught it. Playing like that gives me a major headache, sadly, so I don't get to play much. The mods I usually use are:



I've tried each mod individually and in different combinations and while all the mods work, OptiFine no longer seems to work with them.

In Video Settings, can you navigate to Other, then make sure Autosave is at 3 minutes? You can also try turning Advanced OpenGL on.

If playing on the default launcher, you can use these as your JVM arguments:

-server -Xrs -Xmx350m -XX:ThreadPriorityPolicy=42 -XX:+TieredCompilation -XX:TargetSurvivorRatio=90 -XX:SurvivorRatio=8 -XX:MaxTenuringThreshold=15 -XX:+UnlockExperimentalVMOptions -XX:+UseBiasedLocking -XX:UseSSE=3 -XX:+UseCodeCacheFlushing -XX:+UseThreadPriorities -XX:+UseFastAccessorMethods -XX:+AggressiveOpts -XX:+ReduceSignalUsage -XX:+UseInterpreter -XX:+UseFastEmptyMethods -XX:+UseSharedSpaces -XX:AllocatePrefetchStyle=1 -XX:+AlwaysCompileLoopMethods -XX:SharedReadOnlySize=30m -XX:+UseConcMarkSweepGC -XX:+RewriteFrequentPairs -XX:+OptimizeStringConcat -XX:+CMSCleanOnEnter -XX:+UseSplitVerifier -XX:+UseInlineCaches

Did you put the OptiFine.jar into the mods folder?

Quote from undefined »

Autosave is set to 3 minutes and Advanced OpenGL is on.

When I tried to use that string, I get an error saying "Error: Missing 'server' JVM at destination. Please install or use the JRE or JDK that contains these missing components." Where could I find that missing file?

And Optifine is in the mods folder.

Ah, this may require a reinstall of Java, and an install of Java JDK. Please uninstall all versions of Java on your computer.

Java (If you have 64 bit os, choose 64 bit, else choose 32 bit): https://www.java.com/en/download/manual.jsp

Java JDK (SE, same as above, choose 32 bit of you have 32 bit os, make sure to hit accept license agreement at the top): http://bit.ly/196ebsY