These JVM arguments (specifically -XX:+UseConcMarkSweepGC and -XX:+CMSIncrementalMode) reduced my game’s memory usage by 2.8 GB. XX:+UseConcMarkSweepGC -XX:ParallelGCThreads=4 -XX:+DisableExplicitGC -XX:+CMSIncrementalMode .gcInterval=2147483646 -XX:+UnlockExperimentalVMOptions -XX:MaxGCPauseMillis=35 XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32M XX:+UnlockExperimentalVMOptions -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 Thus I think I have (but am not currently at that computer to confirm or copy/paste): -Version:1.8+ -XX:+UseG1GC -Xmx8G -Xms8G .gcInterval=2147483646 I've also upped the memory settings to allocate 8 gigs of ram ( -Xmx8G and -Xms8G) because I've got a total of 32 gigs of ram in my gaming computer and 8 gigs seems to be a good balance for most 1.12 packs. I think I've added -Version:1.8+ to force minecraft to use the latest version of Java 8 I have installed (Twitch wants to use the ancient version packaged with vanilla Minecraft). I'm not super well versed in java arguments, but it seems like a great starting point. That goes into a bit of detail about what each piece does, and was posted by one of the Forge developers. XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32M XX:+UnlockExperimentalVMOptions -XX:G1NewSizePercent=20 look, the original Elite got by with how many kilobytes of memory? And you're assigning gigabytes to Minecraft? We gotta do better than that." "What?! Next you'll be telling me people allocate 8GB of ram to a pack." Better unnoticeable microlag every frame than the game locking up for half a second every five minutes." "Feh, anyone taking Minecraft seriously has their Garbage Collection timeout set to like 50ms or 100ms anyway so it happens every 1 or 2 Minecraft ticks. "But that's exactly it! I can make it work better if I destroy objects when they're done, instead of waiting for Java to realise it can get rid of it half an hour later." "Why are you even explicitly calling GC anyway? Just let garbage collection happen, we aren't C++ and we aren't doing our own memory management." "Why do so many people disable explicit garbage collection calls?"
FEED THE BEAST JAVA 8 MAC CODE
fine, but I still want to make my code as efficient as possible!"
"Optimise shmoptimise, do you really want to spend weeks debugging network de/serialisation issues from writing your own netcode instead of just using what's already there?" "I should have to build and specify my data structures manually so I can optimise them!" If you would like more information on FTB then check out our Wiki to see all the current modpacks, and discussions from the community, as well as helpful links!Ĭlick here to get to the Wiki! Tools & Resources:ĮDIT: Apparently "arguments about Java" is not a funny enough joke.
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