Marketplace seller. Minecraft: Gonubax. Locate the Minecraft tab and go to “Java Settings. 6-8 is the sweet spot. Enable the “JVM Arguments” button in the list and replace “-Xmx1G” with “Xmx(the amount of Ram that you want to allocate in Gigabytes)G” Replacing this part of the Argument with the “-Xmx4G” command or the one according to the available RAM. Minecraft is intensive to RAM and CPU, if you don’t have enough RAM, the Minecraft lagging is reasonable. In the ‘Profile Options’ section, look for ‘JVM Arguments’ and click on the switch next to it to turn it on. Better to allot 4GB or 8GB RAM. Find the "JVM ARGUMENTS" box, and in it find the -Xmx flag. Add your JVM arguments such as '-Xmx2G' (Assigning the server 2GB of RAM) and then add then add the argument 'nogui' to a new line. How to allocate more ram to minecraft Minecraft ram allocate updated 2021 last [最も人気のある！] minecraft memory allocation 156642-minecraft memory allocation. The /r/feedthebeast subreddit is not affiliated or. We have JVM arguments in the Start. Third -d64 and -client aren't necessary since java automatically just detects the correct shit. Firstly, you have to move to optifine. Allocating More RAM Using Legacy FeedTheBeast (FTB) Launcher. What this does is changes the amount of RAM Minecraft starts with. Make sure not to provide too much RAM and check it fits your computer’s capacity. files for sevtech. Minecraft JVM arguments: -Xmx2G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32M. If the VM decides to use all the memory, then it will increase the time between the garbage collections (20 sec instead of 4), but it will also increase the garbage collection time by. Near the start you should see something that looks like -Xmx2G or similar. The x64 is for 64 bit computers. 5gb Never allot more than 8gb. Step 01: Open CurseForge Launcher and click on the Settings icon located at the bottom left corner of the window. 3volt to fit older Hp Vectra Desktop. It just forces the GC to run harder and lag the main java thread. As you can see, the game is using 4gb, when it should use up to 2gb. For servers using 12GB of RAM or less: java-Xms12G-Xmx12G-XX:+ UseG1GC-XX:+. Modify this number to increase the allocated RAM. button and then on Edit. -Xms1G will set the MINIMUM HEAP to 1GB at start-up. Open the launcher, click edit profile, scroll down to JVM arguments, in the first few characters change 1G to #G where # is the number of GB of RAM you wish to allocate. What -XX:+UseConcMarkSweepGC. If you need Optifine, you need to add that. @MadMrCrazy 32bit java allows only 1GB RAM, not 2GB ;-) –. Purpur is a fork of Tuinity, and Tuinity actually has some memory usage improvements. Anything above 4gb of RAM allocation will make your game confused with all the extra ram and will lag the game. it's true! All you need. 2, try running the game with the default JVM arguments for comparison. If you have 16GB ram or above on your pc you want to allocate 6GB ram to minecraft. If you have 16GB ram or above on your pc you want to allocate 6GB ram to minecraft. For example, if. Minecraft more options. In-game: 8. The subreddit for all things related to Modded Minecraft for Minecraft Java Edition --- This subreddit was originally created for discussion around the FTB launcher and its modpacks but has since grown to encompass all aspects of modding the Java edition of Minecraft. get the jvm arguments right for it. The main functions of JVM arguments are 2 things, to allocate RAM to the JRE (in this case, running minecraft) and the control the garbage collection of Java. I have closed everything out that I can before starting the game, and increased to 2gb of ram in the JVM arguments (-Xmx2048M -Xms2048M). into: -Xmx#G . Are there any best practices? In this article, we will discuss the possible JVM arguments that can be used to specify the Java heap size and the best option to choose. Modded Minecraft. Fix 3: Provide enough RAM. The flag Xmx specifies the maximum memory allocation pool for a Java Virtual Machine (JVM), while Xms specifies the initial memory allocation pool. When you start a Java program, you start a new instance of the JVM, which will allocate at most whatever amount of memory you specify (with the -Xmx option). Start the game first and note down your current FPS when you hit F3. In the “JVM Arguments” section, the argument “-Xmx2G” determines how much RAM is allocated to your Minecraft game from your computer. Pour modifier la RAM, il vous suffit donc de modifier le "1" en le remplaçant par le nombre de Go que vous voulez allouer à Minecraft. dgc. In order to do so, you will need to right-click the project and click the Edit menu. Simply drag the bar to modify the RAM to Minecraft. net and click on the Downloads tab. There is only one number in this section of text, and it likely has a default value of 1 or 2. txt C:UsersuserDesktopOmegacraft1. . so i have 8gb of memory actually but 2gb of that memory goes to graphics card because it is integrated(yes i know it is dumb) i usually get about 150 fps but for some reason minecraft now started freezing for 0. For (3 GB) RAM: -Xmx1G -Xms1G -Xmn128m -XX:+DisableExplicitGC -XX:+UseConcMarkSweepGC -XX:+UseParNewGC -XX:+UseNUMA -XX:+CMSParallelRemarkEnabled -XX:MaxTenuringThreshold=15 -XX:MaxGCPauseMillis=30 -XX:GCPauseIntervalMillis=150 -XX:+UseA. Even newer versions of Minecraft do not use more than 200-300 MB of memory unless you are using extreme render distances. Minecraft: Gonubax. At the same time, the modpack aims to completely change your Minecraft gaming experience, instead of boring grinding, you enjoy the process while making. Look for where it says JVM arguments and change -Xmx1G to -Xms[Gigs of RAM]G. If you are going to use JVM arguments to define the memory allocation, be sure that you are not providing duplicate commands. In an OS environment where we’ve installed both 32 and 64-bit packages, the JVM automatically chooses the 32-bit environmental packages. Steps to increase Minecraft RAM: Launch Minecraft and click "Installations" at the top. Generally, when I need more memory for Minecraft, I set the max heap and not the min heap. Simplified: "-Xmx4G -Xms4G" = 4GB of memory allocated to Minecraft. Locate to the About section and note down the number of Installed RAM under Device specifications. This guide assumes you have a little spare RAM when running Minecraft. Click on MORE OPTIONS and change under JVM ARGUMENT the first number found after -Xmx. Minecraft still runs at a very slow speed (still 120 fps but tps i believe) Post a screenshot with F3 enabled and your JVM arguments. It's easier to play with. Click on the Download button next to release 1. This would need a PC with at least 8 GB RAM (as the real memory usage is almost double the memory visible in Java). I tried everything, reinstalling Java. This nifty little code tells Minecraft how much RAM to use. jvm argument: -XX:+UseG1GC -XX:+DisableExplicitGC -XX:MaxGCPauseMillis=10 -XX:SoftRefLRUPolicyMSPerMB=10000 . 2? (forge with 19 mods and 12 gb ram) I want it to be stable fps and not timing out as often. La RAM est désignée par la première chaîne de caractère, "Xmx1G". This modpack is a simple setup of the Prehistoric Nature mod, plus its dimensions, with only a TreeChopper mod and a few extremely basic support mods added. – Trong mục JVM Arguments, bạn thay đổi -Xmx2G thành -Xmx4G hoặc -Xmx8G tùy thuộc vào lượng RAM bạn muốn cung cấp cho Minecraft. 2GB of RAM - despite not using it entirely(F3 never actually reaches more. #3 JVM Arguments & Lag Spikes Minecraft can start getting slow, and getting constant lag spikes after being played for a long period of time. The 4B 2GB and 4GB models have much more breathing room. -XX:MaxRAMFraction, -XX:MinRAMFraction. Minecraft install. There are 3 different options to specify the maximum Java heap size in containers. Unless you run into a memory related problem I would suggest you. Open the Minecraft Launcher. 2ghz processor with 8gb ram. ”. into: -Xmx#G . With no extra programs running here is what each ram amount can give to minecraft. The only thing setting a higher `-Xms` value is going to do is reduce the small amount of overhead of the JVM allocating extra virtual memory from the OS. SAVE $14. This avoids the JVM needing to regularly increase the heap. 9. ”. Click the 3-line icon. Edit: I am playing on version 1. 17. I've assigned MineCraft anywhere from 8GB through 48GB of RAM, and generally it only uses upto 20% of the allocation, regardless of how much I give it. Toggle on the JVM arguments switch. increase ram usage, either in argument or through the launcher (recommend launcher) EDIT: people are saying more ram but keep it below 8-10. Locate your desired profile and click the three dots to the right. 8+) Update. answered Aug 25, 2015 at 13:36. CLIENT ONLY MOD . Modded Minecraft. The 2G portion of that denotes the 2GB of RAM that Minecraft has allocated to it. Thay đổi dung lượng RAM mà game Minecraft có thể sử dụng. In the setting window, choose System. MultiMC. Only 2GB of RAM is allocated by default in the Minecraft Java Launcher. Then you should be able to go into your . Fix 3: Provide enough RAM. Press the More Options text, just under the Resolution option. -> Select Arguments tab -> In VM Arguments you can increase your JVM memory allocation. gc() to free up your memory. Em "Java Settings (Advanced), ative "JVM Arguments" e adicione na área de texto este argumento: -Xmx2048M -Xms2048M. You can use the arrow keys to make it easier as it adjusts 500MB of Memory per arrow clicked. Also set the RAM higher by editing the JVM arguments. Allocate More RAM using the Official Minecraft Launcher. Clean start: Same as above. gcInterval=2147483646 -XX:+UnlockExperimentalVMOptions -XX:G1NewSizePercent=20 . You can set this to 4,8,16, etc. -XX:+UseG1GC is more popular but did nothing for me. Sixth The CMS Collector was replaced with G1GC in Java 9 and -XX:+UnlockExperimentalVMOptions doesn't unlock it. If for whatever reason you need my pc specs lemme know. For me, 1. I want to use an AFK profile in Minecraft, but I can't seem to limit its ram usage. You probably are limiting it so much that. My specs are: i7-7700, 12 GB ram (7gb allocated), GTX 1050, playing on HDD. now in the bottom right next to the resolution settings it will say ''more options'', click on that writing and scroll down, their should be a box that says ''JVM ARGUMENTS'', enter you're desired argument and. The most it will use out of 48GB is 7-8GB, and then I get a framerate pause for 1-2 seconds, and it drops back to 1-2GB and climbs, repeats. 5, playing with 200+ mods so anything helps! Thanks. I have readed that CMSIncrementalMode and Xmn are not usefull, right ?After that, the full argument should be “-Xmx8G”. See the guide for fixing RAM crashes. Allocate maximum 512MB to Minecraft, assuming you have enough available RAM to keep the system stable. With the normal arguments, it normally should only have negligible effects - but if you set your own arguments it can give you serious lag-spikes cause now the JVM garbage collector has to run through a few gigabytes of RAM instead of a few megabytes. 3,307 15 19. Underneath the heading JVM Arguments you'll see a bar with a string of text in it. We limit the memory based on your computer limitations. -Xms1G: Sets the initial memory allocation to 1GB. Customizing JVM Arguments. . 10 (that's where I got ~70 modes in to 1 gb of ram + the amount needed for the jvm (I use. Here in the place of Xmx2G should be replaced with 2GB Ram. What this does is changes the amount of RAM Minecraft starts with. Related read: No Sound on. 7. When I updated my private server to 1. dgc. 60Mhz and Intel HD Graphics 4000 (integrated) with 1740MB vRAM. e. r/feedthebeast •. Then check JVM Arguments. MultiMC makes this really easy. 1. For (3 GB) RAM: -Xmx1G -Xms1G -Xmn128m -XX:+DisableExplicitGC -XX:+UseConcMarkSweepGC -XX:+UseParNewGC -XX:+UseNUMA . At the beginning of the "JVM Arguments" field, there's a bit of code that reads "-Xmx2G" or something similar — the "2G" represents how many gigabytes of RAM "Minecraft" can currently use (in. Click on the profile you intend to add more RAM for, and locate the box entitled JVM Arguments. This would need a PC with at least 8 GB RAM (as the real memory usage is almost double the memory visible in Java). Note that the Max ram you allocate will be unusable by the rest of your system so there is really no point in setting the Min amount lower. In today’s market there are lots of high tech games available which require more RAM due to high graphics. I did this by reinstalling java and Minecraft (copy your saves first), then copying the saves back over and making the ram slider go BRR and maxing that out as well. Open your Minecraft Launcher 2. 99. Instead of 200, it may use 300. 1/2 of 1GB) will be allocated to your Java heap size. -Xmx: This option sets the maximum Java heap size. #3 Aug 24, 2021. 5 Java minecraft, I realized that the information on possible combinations and compatability is kind of all over the place. The issue is I don't really know how to optimize it, so I was wondering if someone else could help me make a good command? My specs: Ryzen 7 3700 32Gb 3000 Ram 1650 gpu. There you will find JVM arguments that you can. Like – if you want to allot 8GB of free RAM, you have to use this JVM argument “Xmx8G“. Toggle on the JVM arguments switch. Ok step 1 is to disable MipMaps in the video settings. These JVM arguments (specifically -XX:+UseConcMarkSweepGC and -XX:+CMSIncrementalMode) reduced my game’s memory usage by 2. Tick the box next to 'JVM Arguements'. ago. 基本原理. . New comments cannot be posted and votes cannot be. answered Aug 25, 2015 at 13:36. OpenJ9 Run 2: Time for Forge load: 3:57 39% Menu CPU idle 4. Find great deals and sell your items for free. 2. What arguments should I use to make my server more stable, and what arguments should I tell my friends to use when they play on it. This represents the amount of RAM Minecraft currently uses, which is 2GB by default. Go Down to JVM Arguments 4. STEP 4: To allocate RAM to a Minecraft version, move your mouse over the three dots on the right, CLICK and select Edit. fps counter cant even register it its always 150 ish. Step 03: Scroll down to Java Settings. true. -Xmx4G (you can also. Where it says "JVM Arguments" (at the bottom) type in: "-Xmx [amount of memory in GB]G -Xms [same amount of memory in GB]G". Above the argument for the directory change it to the 64 bit java's directory and then change your argument to - Xmx2048M. RAM usage cycling to 100% and freezing Minecraft #1 Jun 14, 2020. Registered members Current visitors New profile posts Search profile postsStep 2: Edit the Amount of Dedicated RAM to the Minecraft Server. Garbage collection is the technical term referring to the cleaning of unused items that are in the allocated RAM to free them up for other uses. Taking Modded Minecraft for Granted. In the JVM arguments text box, make sure the number after -Xmx (the first part of the. Select Edit from the drop-down menu. Change -Xmx1G to how much you want. In the Edit Installation Menu, click More Options to edit the JVM arguments. 8GB Ram Windows 7 ultimate. jvm argument: -XX:+UseG1GC -XX:+DisableExplicitGC -XX:MaxGCPauseMillis=10 -XX:SoftRefLRUPolicyMSPerMB=10000 . Press 'Save Profile' & Press play. STEP 6: Under JVM Arguments, you’ll see a script on the bar. Click the version that you’d like to change. Click Edit Profile 3. Posted April 6, 2018. – Cuối cùng, ấn Save để lưu thay đổi là. To save your modifications, tap “Save. Go to the download page for Java and click other downloads on the left then install the x64 version. doing that on a loop. ZGC supports heap sizes from 8MB to 16TB. To allocate more memory for minecraft using the newer edition of the vanilla launcher, click on. 15. 1. We started out as a custom challenge map in Minecraft that made heavy use of multiple tech mods. As I stated in my comment, the Xmx argument is a maximum setting and will only ever be reached if Minecraft has enough chunks loaded, so to put it simply having a higher Xmx value will allow to have a higher render distance set in game (this is an extreme. Here’s a step-by-step guide to changing your JVM arguments: Locate the Minecraft Launcher and open it. Go to the “Installations” tab. Adjusting these settings can help in various ways:. #3 JVM Arguments & Lag Spikes Minecraft can start getting slow, and getting constant lag spikes after being played for a long period of time. You can set this to 4,8,16, etc. This is useful if your program will consume a large amount of heap memory right from the start. Después, haz clic en Settings, cerca de la parte derecha de la pantalla. And also, the theory that "moar ram=moar FPS" is an absolute fallacy. - GitHub - etil2jz/etil-minecraft-flags: An extra optimization to Aikar flags, the JVM arguments that make your Minecraft server smooth. Due to the fact that explicit gc can freeze your game for a short period, the mod watches the player movement and starts to clean up your RAM after the player stays idle for a while. My upcoming Modular Item mod now has modular Projectiles and bows. g. This represents the amount of RAM Minecraft currently uses, which is 2GB by default. To increase RAM, go to Installations. 2. Press the More Options text, just under the Resolution option. Web #1 What Jvm Arguments Do You Use (2Gb Ram) Please I Need Help. If you are going to use JVM arguments to define the memory allocation, be sure that you are not providing duplicate commands. Em “Configurações de Java (Avançado)”, marque a opção "Argumentos da JVM” para que possa inserir comandos e modificar o Minecraft. The more unused ram, the more heavier the lag gets. Notes - Provides a clientside in-game notepad. To ensure you are using 64-bit Java, put -d64 into the "JVM arguments" line. 4 programs = 4 JVMs which will each allocate at most 2 GB if you'd use -Xmx=2G. The easiest way to improve performance across the board is to allow Windows to use as much RAM as necessary to ensure performance. server. Method One: Allocate RAM From The Default Launcher. 20 to 30FPS unless snowing and a mob horde at the same time. Locate the -Xmx2G parameter. To increase RAM, go to Installations. But it stays at 2GB in game. Hey guys, I'm running latest forge for 1. Allocating MORE ram than this is actually counter productive, I know it makes no sense but your modpack will run better with 8 gigs than 10-11-12 gigs. This will open a file browser- we want to go back to where we extracted GraalVM now!Can't add more than 2gb of ram to Minecraft. Step 6: Change the number to “ Xmx4G ” to include the 4GB of RAM, or “ Xmx6G ” to allocate 6GB of RAM, and so on. If you have more 3GB of RAM to spare, copy and paste the below code into the JVM Arguments: -Xmx3G -Xms3G -Xmn768m -XX:+DisableExplicitGC -XX:+UseConcMarkSweepGC -XX:+UseParNewGC -XX:+UseNUMA. Simplified: "-Xmx4G -Xms4G" = 4GB of memory allocated to Minecraft. Go to “More options“ and find “JVM Arguments” in the Java settings. Trying to allocate more RAM for Minecraft to run a little better. This means that the JVM should start with 14 GB (-Xms) and grow to a maximum of 14 GB (-Xmx) heap RAM usage. Also, before you do that make sure you have a 64. 7. com Underneath the heading JVM Arguments you'll see a bar with a string of text in it. Simply go ahead and edit a profile and where it says "Java Settings (Advanced)", tick all the check boxes. With the right settings it should not mater much. Would love if someone could recommend Java arguments to increase performance clientside for me on 1. Después de elegir tu RAM, cambia la parte en JVM Arguments que dice -Xmx2G (o lo que sea que diga), y. If the RAM is full, you will notice this through lag and freezes. JVM arguments I use:-Xmx8G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32M. If the JVM doesn't perceive more ram as necessary, it won't ask for more, or if that RAM is unavailable for whatever reason (maybe windows decided to start downloading updates in the background), the OS might deny future requests. 2048M is plenty, depending on render distance and mods. This can be set in Minecraft Launcher - Edit Profile - JVM Arguments-Xmx1024M or -Xmx1G is usually enough. JVM Arguments will allow the game to run longer, without these Lag spikes, and FPS drops. Aloque mais memória. If the minimum is hovering above 75%, or the maximum consistently hits 90%+, then Java memory might be a problem. Then add the amount of RAM you would like to the JVM Arguments text box. By default your Minecraft launcher will have only 2GB's of RAM allocated on startup. So my minecraft only has like 2GB of ram given to it and its using 100% of my memory at all times and is incredibly laggy. 1000M = 1000 megabytes = 1. Enable it by clicking just to the left of it. Even disconnected from the server, sitting in the menu causes my CPU to spike to 100% occasionally, and RAM consistently stays at 90%+. Minecraft needs a minimum of 2GB RAM to run smoothly. -Xmn. If you. Na seção "Profile Selection", clique em "Edit Profile". Make sure that the switch labeled "Advanced settings" is turned on! Find and click the Forge profile that you are using to play Pixelmon. Add your JVM arguments such as '-Xmx2G' (Assigning the server 2GB of RAM) and then add then add the argument 'nogui' to a new line. The last one shows 100% allocated since that was during normal gameplay and the JVM arguments I use allocate all the memory from the start; if you allocate a lot more you shouldn't though since it can. Sevtech Ages should download and install. Plants which still exist now are set to spawn in the Overworld. Minecraft jvm arguments 8gb ram. Check the available RAM on your PC. By default, this text is in the JVM arguments:In the “JVM Arguments” section, the argument “-Xmx2G” determines how much RAM is allocated to your Minecraft game from your computer. Also, before you do that make sure you have a 64. Xmn is minimum (starting value actually). To increase that, all you need to do is change the value of the number. You will find the memory allocated to it in the number in the text form. However, for those with additional RAM, allocating that extra memory can give significant performance boosts. This will tell the game to allocate 2GB of RAM to each client. It was running on an x86 architecture, which won't allow more than one gig. You may also need to add an "Xms" argument as that means minecraft starts at that amount of RAM. Start the launcher and press 'Edit Profile'. Toggle on the JVM arguments switch. To save your modifications, tap “Save. ในหัวข้อ "Java Settings (Advanced)" ให้ติ๊กช่อง "JVM Arguments" เพื่อให้ป้อนคำสั่งสำหรับปรับแต่งโปรแกรม Minecraft ได้. I did notice here and there on this forum that some have lag spike issues, and that others don't. Checking in on task manager says im only using around 4 gb of ram out of my 12 gb allocated. Why Change JVM Arguments in Minecraft? Minecraft relies on Java to run, and the JVM arguments determine how Java behaves. If chunk loading is an issue, you could always allocate one extra gigabyte of RAM for Minecraft in the JVM arguments. Go to “More options“ and find “JVM Arguments” in the Java settings. As chickenmac says, make the game only use 2-4gb of RAM for starters. 4 GHz, 8GB of RAM (I also play on this computer, yes it's a bit old) MOD LISTMessages. The – Xmx2G – command signifies that you’ve allocated 2 GB RAM to Minecraft. HoD. If you want to add a MAX amount of RAM Change -Xmx1G to -Xmx and then the number of ram you want and then the unit, so for 512 MB do -Xmx512M and for 8 GB do -Xmx8G. However it's important to allocate RAM to Minecraft in moderation—-Xmx4G. 3. 1. Launch the Minecraft launcher. As you can see here, the memory usage between JVM's is a pretty impactful 1GB. One is x64, one is x86. M means megabytes and G means gigabytes. Step 5: Examine the JVM argument line. An extra optimization to Aikar flags, the JVM arguments that make your Minecraft server smooth. Share. If you are playing without mods, at JVM-Arguments the usage should be set to -Xmx2G. Regular Minecraft ignores this and this can cause instability issues and crashes. Minecraft mehr RAM zuweisen Minecraft more RAM Tutorial: Spiel ruckelt? Dann solltest du Minecraft mehr RAM z. What -XX:+UseConcMarkSweepGC. 1. In the JVM arguments, select the text highlighted in yellow in the image above. I recommend leaving the others alone) -client. -d64. In the JV arguments field, look for a line that starts with -Xm1G. ”. howdy there, i am currently using jvm arguments i found on this very subreddit years ago, but i was wondering if they are still "the ones to use" for modern minecraft and java. 1. Tick the box next to 'JVM Arguements'. Once it's installed it'll be in program Files and not program Files x86. I made a modpack and i am using these jvm arguments and they are really good but they only 2gb although they reduce ram usage A LOT, I still need to allocate more ram to use high end shaders and resourcepacks soooooo what do i add to it to allocate more ramWant to know how to allocate more RAM to Minecraft 1. What JVM arguments do you use (2GB RAM) please I need help. I'm trying to allocate 4GB of ram to minecraft by changing the -Xmx2G to -Xmx4G in the jvm arguments. Tick the box next to 'JVM Arguements'. Select the version of Minecraft you would like to change the RAM allocation to, and click on the 3 dots and click "Edit". Use the JVM arguments from step 4 below in the JVM Arguments field. Use -Xms to specify the initial Java heap size. Need Advice with JVM arguments for MC 1. Change the number after “-Xmx” to the RAM amount you want to allocate in ‘GB’ to. For example: if you want to allocate 2GB to your Minecraft, simply rewrite the code into –Xmx2G. The Java heap (the “heap”) is the part of the memory where blocks of memory are allocated to objects and freed during garbage collection. -Xmx1G will set the MAXIMUM HEAP to 1GB at start-up. For example, if you want to allocate 4GB of RAM, change the value to. If you have 4GB or more of RAM, type -Xmx4G into the text box and click “ Okay “.