- #MINECRAFT LAUNCHER 2.0 JVM ARGUMENTS HOW TO#
- #MINECRAFT LAUNCHER 2.0 JVM ARGUMENTS UPDATE#
- #MINECRAFT LAUNCHER 2.0 JVM ARGUMENTS FULL#
- #MINECRAFT LAUNCHER 2.0 JVM ARGUMENTS MODS#
- #MINECRAFT LAUNCHER 2.0 JVM ARGUMENTS FREE#
Like the ones above it, it should work with ALL Garbage Collectors and not just G1GC.Īnd there you have it.
#MINECRAFT LAUNCHER 2.0 JVM ARGUMENTS MODS#
Some mods cause humongous allocations as well, such as journeymap, and this setting helps them too."I have not played around with this one as the default settings make sense to me. The reason for this is that chunk data is typically just over 8megs in size, and if you leave it default (16 megs), it'll treat all the chunk data as "humungous" and so it'll have to be garbage collected specially as a result.
#MINECRAFT LAUNCHER 2.0 JVM ARGUMENTS HOW TO#
50 millis is the time for one server tick "įinally, there is -XX:G1HeapRegionSize=32M Which, I have no idea how to explain it myself, so here is CPWs Explanation " This tells G1GC to allocate it's garbage collection blocks in units of 32megs. This is a target, and G1GC will ignore you if you put a silly number in like 1 which is unattainable. To again quote CPW "This tells G1GC to try and not stop for more than 50 milliseconds when garbage collecting, if possible.
Much like the previous, -XX:MaxGCPauseMillis=50 is core to most of these arguments, and once again, works with ALL Garbage Collectors as far as I can tell. This is space where new objects will be allocated, in general."As a note, despite CPW saying G1GC they work with ALL Garbage Collectors as far as I can tell.This is especially useful in large modpacks where large amounts of blocks and items are present, again, tweek as necessary. XX:G1NewSizePercent=20 and -XX:G1ReservePercent=20 They "Tells G1GC to put aside 20% of the heap as "new" space. I have found that the simpler the arguments are, the more effective they tend to be, so here are the remaining args I know work.Īnd now for two important arguments for any Garbage Collector changes:
#MINECRAFT LAUNCHER 2.0 JVM ARGUMENTS UPDATE#
XX:+DisableExplicitGC As far as I can understand, some mods implement their own Garbage Collection in an effort to reduce memory usage which can sometimes interfere with the normal Garbage Collector, I believe that there is an alternative option but I can not remember it and will update this if I find it.įor the sake of finding a lot of options which I am not sure will work or not, and are most likely redundant or simply outdated, I will be skipping them. XX:+UnlockExperimentalVMOptions Does exactly what it says, it unlocks Experimental Java Virtual Machine Options.
#MINECRAFT LAUNCHER 2.0 JVM ARGUMENTS FULL#
Next up is this, .gcInterval=2147483646To he honest, I actually do not know what exactly it means however the post by CPW explains it as follows "This tells the RMI layer not to do a full GC every minute." Again this may vary so do some research on what processor you have and tweek accordingly. I have a 6 core intel processor and tend to not be doing anything when playing so I use all 12 of the available threads. In tune with multi-threading, -XX:ParallelGCThreads=12 This command sets the number of parallel threads that the GC will use, this number is directly based on your processor.
#MINECRAFT LAUNCHER 2.0 JVM ARGUMENTS FREE#
WARNING: THESE SETTINGS WILL NEED TO BE CHANGED BASED ON YOUR COMPUTER, EXPERIMENT AND FIND WHAT WORKS BEST FOR YOU, THIS IS JUST AN OUTLINE USING COMMONLY USED SETTINGS.įirst off, the actual Garbage collector.What this does is free up unused memory periodically while java is running, aka cleans up the garbage.For minecraft, the two biggest ones are -XX:+UseG1GC and -XX:+UseConcMarkSweepGCAs a note, -XX:+UseConcMarkSweepGC has many settings to it as outlined in the fasterj post.I found that -XX:+UseConcMarkSweepGC -XX:+UseParNewGC tends to work out best for me but this may differ.I am not sure if it is required, but I use -XX:+CMSConcurrentMTEnabled This way it makes sure multi-threading is enabled for the Garbage Collector, may not be required. They deserve the credit for this, I am merely trying to raise awareness for it and try to help some people who have issues running the game like my friends.Sources:Īnd several others however the first and second ones are the most relevant. Do keep in mind, I have almost no java programming experience and this is compiled based off personal testing and various posts from people such as CPW Player and other programmers who know what they are doing far more than I do. After several days, and a headache later, this is what I have came up with so far. Hello, I am a longtime player of modded minecraft and in my quest to fit as much stuff as I can into a modpack I ran into JVM arguments.
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