Select the green Save button and you’re done! 2. Setting Java as a priority might reduce lag issues. These arguments are especially useful in the case of. In the setting window, choose System. という方は、まずは "F3キー" を押してメモリ使用率を確認してみましょう。. If your RAM is similarly hovering around 100%, then you should also look further into the guide. 7. # For example, to set the maximum to 3GB: -Xmx3G. 2. 1 GB of RAM allocated. Let's give Minecraft 4 GB of RAM to play with. Hopefully Minecraft should run Notes: If you get 'Exception in thread "main" java. This mod automatically calls System. I've tried modifying the arguments, but I couldn't get them to work. Minecraft cannot handle anything more than 4gb (for vanilla and 4-8gb depending on how modded it is). gcInterval=2147483646 -XX:+UnlockExperimentalVMOptions . Keep everything else the same. 25 players and 40 mods: at least 4 GB of RAM. Even newer versions of Minecraft do not use more than 200-300 MB of memory unless you are using extreme render distances (over 16; the game doesn't even let you go over that unless you allocate. The JVM arguments : -XX:+UnlockExperimentalVMOptions -d64 -Xmx 6G -Xms 6G -XX:+DisableExplicitGC -XX:+UseParNewGC -XX:ParallelGCThreads=12 . Even loaded up vanilla and was still a memory leak. #3 JVM Arguments & Lag Spikes Minecraft can start getting slow, and getting constant lag spikes after being played for a long period of time. In the JVM arguments, select the text highlighted in yellow in the image above. With the right settings it should not mater much. This is especially useful. B. I have readed that CMSIncrementalMode and Xmn are not usefull, right ? The point of JVM arguments are to allocate more memory for your Minecraft. 13+ with Java 11 you can add these VM options and that might work as well: "-XX:+UnlockExperimentalVMOptions -XX:+UseJVMCICompiler". Allocate more RAM: In the “JVM Arguments” box, you will see a line of text that starts with “-Xmx”. The value you should use depends on how much RAM your laptop or computer has. In the Performance tab, select “Memory. 起動構成 (プロファイル)の作成. If you are going to use JVM arguments to define the memory allocation, be sure that you are not providing duplicate commands. exe* of java. You should know allocating more RAM to Minecraft Technic Launcher. Click on the installations tab and find which installation you want to allocate more RAM to. This would need a PC with at least 8 GB RAM (as the real memory usage is almost double the memory visible in Java). So setting the initial value to 0. However, for those with additional RAM, allocating that extra memory can give significant performance boosts. How to allocate more ram to minecraft 2022 [ultimate guideJust as an experiment, try this instead of the whole thing you have: So i have tested it for some while and it was ok at the beggining maybe like 1 spike lag per. 5GB: -Xms2500M. The screenshot show's Minecraft's using about 3GB, so it's using less than allocated. Go to the JVM Arguments section, and increase the values for -Xmx and -Xms. Aloque mais memória. Also tried -Xmx8G and just. 3 ways to allocate more ram to minecraft √完了しました! minecraft jvm arguments list 210907-minecraft jvm arguments Minecraft using far more ram than allocated. We have JVM arguments in the Start. Use -Xms to specify the initial Java heap size. ” This. You should rather try looking at what your PC is really doing, many things can have a negative impact. Anything above 4gb of RAM allocation will make your game confused with all the extra ram and will lag the game. To check how much of your RAM is being used by Minecraft per time, use these steps: Checking RAM Usage on Windows. # M means Megabyte, G means Gigabyte. If you have more than 8GB, allocate 4GB, and if you have less than 8GB, take your memory amount and half it. The Raspberry Pi 4 is available in different memory configurations all the way up to 8 GB. 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. Busca el modpack que desees y selecciónalo de la lista. Du würdest diesen Text z. bat file. A continuación, debe ir a la versión que desee (haga clic en Última versión) y marque la casilla Argumentos JVM. If you have 4GB or more of RAM, type -Xmx4G into the text box and click “ Okay “. Within the run. Parameters affecting the memory available to the JVM include:-Xms: Sets the minimum and initial size of the heap. Using 5800x 3090 with 8gb ram allocated 70mods and running shaders I'm. Step 3 - Choose the profile you want to allocate more RAM to (e. Right click Windows Start menu and choose Settings. Make sure that the JVM arguments are turned on. Thank you for 10 years! COVID-19's effects on the market took a hard toll on ourselves and our customers in 2021. Always keep this value lower or equal to the -Xmx JVM. If your PC has 8gb total ram--- DO NOT allocate over 4. Jul 29, 2019 2,373 0 0. ago. -1. I suggest putting the same number on both of them as there is a performance penalty for dynamically changing the Java memory. Find the “JVM Arguments” box: Scroll down the page until you see the “JVM Arguments” box. . Customizing JVM Arguments. Select the Launch Options tab. In the “ Memory Settings ” tab, set a value for “ JVM Arguments “. If your executable is pointing to 32 bit java, then it will not allow nore that 1G of ram. Type in "System Information". 7) Change the number in “-Xmx[number]G” to the memory you’d like to allocate and click the Save button. Use these flags exactly, only changing Xmx and Xms. Allocate at least 2 gigabytes of memory to minecraft-Xmx10G: In this example, we allow minecraft to consume up to 10 gigabytes of memory. Previous Next. The actual RAM usage will be higher, as java needs some space for itself, for loaded classes, for garbage collection temporary internals, etc. ' -XX:+UseG1GC -Xmx6G -Xms4G -Dsun. What this does is changes the amount of RAM Minecraft starts with. then i will downgrade to 12GB so 4 remains. If you have 4GB or more of RAM, type -Xmx4G into the text box and click “ Okay “. 2) and am experiencing high RAM usage at 7. I launched E6E using Java 8 with this argument and played for 4 hours, and the memory usage of JVM is kept at about 8GB (I allocate 6GB for heap. 1 was structered changed because “it is no longer feasible to provide a single executable jar like was done before. The rising cost of living continues to affect us. VM - Changing to 'server' permits use of the server JVM which improves performance, but is not installed by default (JDK is required) Java. Tick the box next to 'JVM Arguements'. 5 with 8 GB of ram allocated (I have 16gb of ram in total) and im playing the mineshafts and monsters modpack. More RAM does not mean more FPS, it's a myth. Minecraft jvm arguments fps boost 2022Jvm arguments Minecraft jvm arguments. Hover over ‘Latest Release’ and click on the three dots. The maximum theoretical heap limit for the 32-bit JVM is 4G. Rollback Post to Revision RollBack Say something silly, Laugh 'til it hurts, Take a risk, Sing out loud, Rock the boat, Shake things up, Flirt with disaster, Buy something frivolous, Color outside the lines, Cause a scene, Order dessert, Make waves, Get carried away, Have a. i found that for some reason some modpacks including Vault Hunters, on default attempt to run the 32bit java which causes major lag issues. # Xmx and Xms set the maximum and minimum RAM usage, respectively. Also Xmn is minimum memory but you don't need to change that. Después, elige la cantidad de RAM que quieres de esta tabla: 2GB: -Xmx2G 4GB: -Xmx4G 6GB: -Xmx6G 8GB: -Xmx8G etc. 5 Gigs, and im getting a good 10 FPS. Remove '-Xmx1G' or the default setting and replace it with the desired amount of ram you want by using the key below (Note: Putting too much RAM may have bad effects discussed above). Step 03: It will open a new window that contains the settings of Minecraft. Don't worry, it's not as difficult as it sounds! Just open up the Minecraft launcher, go to "Launch Options," and then click the three dots next to the version you want to modify. Sources: . You can discuss and share content here; We are a. STEP 6: Under JVM Arguments, you’ll see a script on the bar. Semi-hardcore server where respawning takes 2 hours. This is because the GC assumes it is running in random access memory, not. as the other person said its 6144. Windows needs ram for itself too. encoding=UTF-8 -Xms128m -Xmx1024m -XX:PermSize=64m -XX:MaxPermSize=256m". 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. I'm compiling this list for one simple reason. Arguments minecraft. -XX:PermSize: -XX:MaxPermSize: are used to set size for Permanent Generation. I have 10 GB allocated currently with 161 active mods. -d64. Memory settings. The case where this isn't true is where you know something that the JVM can't, such as the trade-off between latency and throughput. Use -Xss to set the Java thread stack size. Minecraft – allocate ram for minecraft – love & improve lifeAllocate allocated √完了しま. To allocate this amount of memory to Minecraft, go into your game instance's "JVM Arguments". None of which is needed for a 7 player server. Path=detect Java. -Xmx is max memory. ”. Minecraft jvm arguments 8gb ram- However, unless you're playing with Mods, you'll never need more than 8GB RAM to run Minecraft If you have 8GB of RAM, you won't need to add more than 75% of it, or 6GB, which will enough Some modded Minecraft games need more than 8GB of RAM to function properly Minecraft is an. It's a little disconcerting. JVM also interprets the Java programming language because it executes the programs written in Java. -Xmn128M is the minimum and can be safely left out -XX:+UseG1GC tells the JVM to use the G1 garbage collector -XX:+UseConcMarkSweepGC tells the JVM to use the Concurrent Mark Sweep collector The rest of options is just tuning for the selected GC. 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. 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. At the bottom of the settings page there is a box for "Additional Arguments". answered Aug 25, 2015 at 13:36. I have 16gb ram // amd fx-6300 // gtx 1050. 4. Now you have to download the latest optifine version. There is no way for you to both use less CPU and memory while getting more FPS. When I look up the process' RAM usage it's about 5,5gb but adding this amount to the 2,5gb in idle would be a total of 8gb(50% total RAM usage). While client FPS gains. Jul 29, 2019 7,425 1 0. Go to the install titled Problem Pack. For example, “2G” is equal to 2 Gigabytes of RAM, while “4G. For this version of minecraft, on systems with 8GB or more memory, we recommend: -Xms2G -Xmx4G -XX:NewSize=1G -XX:MaxNewSize=2G -XX:SurvivorRatio=2 -XX:+DisableExplicitGC -d64 -XX:+UseConcMarkSweepGC -XX:+AggressiveOpts. Step 6: Change the number to “ Xmx4G ” to include the 4GB of RAM, or “ Xmx6G ” to allocate 6GB of RAM, and so on. The "2" in the first argument represents the GB of RAM available for Minecraft. OS bit can be either 32 or 64. 7. . 20 ghz RAM: 8gb GPU: GTX 1060 3gb Windows 10 operating system1. Specify the Maximum RAM according to the total RAM of your system. Adjust RAM for Minecraft. Minecraft is going to make memory decisions based on -Xmx, not -Xms. Más ram para minecraftMinecraft refuses to use more than 1g of ram, even via command prompt Minecraft jvm arguments 8gb ramMinecraft jvm arguments fps boost 2022. Sources: . Enables touching of every page on the Java heap during JVM initialization. 9 forge that boosts your fps a lot. Paste what you copied to the JVM arguments. Depending on if it is vanilla or using mods, and the render distance, you will want to start with a minimum of 4gb system memory. So, I recently found out about directly allocating RAM using some JVM argument. Tick the box next to 'JVM Arguements'. Share. 16. Initially tried playing around with jvm arguments to no avail. Based on this, they think the game actually only needs about 384 MB of memory (-Xmn = 33% of heap size); not sure what you would set it to for different values of -Xmx (for example, I allocate 512 MB; 32 bit systems aren't that happy with more than this; at least in my experience higher render distances cause out of memory errors with 1 GB. Step 1: Go to Settings,. For example, “-Xmx6G”, which means that 6GB of RAM. I found that -XX. set jvm arguments to use half. 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. Step 3: Click the button with the three dots for the installation you want to manage. JVMの引数はデフォルトで下記のようになっています。There are never more than about 8 kids playing but the stutter and rebreaking the same block lag are annoying. 9 Step 1: Check Available RAM Each program requires a set amount of RAM to run. Step 3: Click on the Java/Minecraft tab. -Xmn. minecraft jvm arguments list 210907-minecraft jvm argumentsPerformance optimization. Also, I don't know if it's my arguments are wrong, but RAM usage seems too high on startup, and never decreases. Step 9 – Finally, click “Done” to save the changes. Web the line below shows the 3 most know jvm arguments. Claro que não vamos passar por todos esses argumentos, mas que tal focarmos em alguns que são realmente importantes para o seu dia a dia. I am using Java 8 152 64-bit. By default, Minecraft only uses a maximum of 1 GB of your RAM, if you have a computer that has 4 GB or even 8 GB then it will be beneficial to allocate more to it. ; In the JVM arguments, select the text highlighted in yellow in the image above. . mui-. Oct 14, 2013 #200The 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. Firstly, you have to move to optifine. Desde aquí, ajuste la barra en la sección Memoria de Instancia para asignar RAM. -Xmx<ammount of memory>. auf "-Xm4G" ändern, um Minecraft 4 GB RAM zuzuweisen. WARNING! Changing your JVM Arguments might cause your game to malfunction, just. 2 Answers. I ran this setup on Ubuntu on an older Acer Aspire laptop with the 1. I added the command -Xmx8192M -Xms4096M to the user_jvm file and it did not seem to do anything. Always keep this value lower or equal to the -Xmx JVM argument. Thus by using more, performance can be improved. 8GB of Memory Java x64 1. Then, choose the More Options tab. A modal will appear and More Options will be available in the bottom-right. REM Add custom JVM arguments to the user_jvm_args. Multiple posts warned me that too much RAM could and likely would cause GC freezes. 32/64 Bit. gives you a 64-bit Java. 6 GB. 12. java -Xms8192m -Xmx8192m -jar paper. If you intend on significantly customizing Minecraft 8GB of RAM is a solid starting point with more RAM being ideal. The line below shows 3 JVM arguments. I have 16gb of ram installed on my computer and i set my jvm arguments to be 8 gb, but i set it down to 6gb to see if it would fix the issue. -Xmx8G. 6. If we had continued, we would have been on a course for a much worse ending. Here’s how to do it: After opening the Minecraft Launcher, go to the Launch options tab. Click on the three dots next to your version & select „Edit”. I did that because whenever Java hits 99% of it's allocated RAM it has to dump a bunch of that data, that takes a bit of time, and it takes time to load the new data, which causes a lag spike, this can be seen if you look at the performance graph (shift+F3), the. Go to the “Installations” tab. Figured out a solution to this bug. On the next screen, press More Options under Resolution. Firstly - the game itself takes almost an hour to fully load, even with all other applications closed and 6gb of RAM allocated. For our mental health and financial wellbeing, it was, unfortunately, a necessity to shut down CubedHost. Click Task Manager and head over to Details. -Xmx is max memory. Change the number after “-Xmx” to the RAM amount you want to allocate in ‘GB’ to. 6. I have 8GB of RAM and the mod list is the default mod list for resonant rise. Select "More Options" in. Allocating More RAM Using Legacy FeedTheBeast (FTB) Launcher. IKVMpath= # Java. Allocate More RAM in Minecraft Launcher. -Xms1G will set the MINIMUM HEAP to 1GB at start-up. ”. Generally, when I need more memory for Minecraft, I set the max heap and not the min. -Xms<size> set initial Java heap size -Xmx<size> set maximum Java. Se você for analisar a documentação da JVM temos muitos argumentos para poder configurar a Java Virtual Machine. In the Edit Installation Menu, click More Options to edit the JVM arguments. Step 04: Scroll down to "JVM Arguments". 2 HD which is the latest release. First off, the actual Garbage collector. GC=default Java. Jvm Arguments Minecraft 8Gb Ram. For example you could replace them with 8192M which means 8 GB of RAM allocated on startup to the Minecraft server. 1-forge-39. com. Marks your Java Virtual Machine (JVM) as a client application. txtIn curseforge, go to minecraft settings and set the default ram *i allocated max) and java version for minecraft. Parameters affecting the memory available to the JVM include:-Xms: Sets the minimum and initial size of the heap. 8gb is probably overkill, try 6144mb(6gb) with this jvm argumentsThe only one, and JVM argument in general (speaking about the default launcher arguments) you should be changing is Xmx, although I still use the older launcher arguments which included Xmn, but only Xmx was changed (and removing CMSIncrementalMode, which is not even supported by newer versions of Java and was. After I spent well over three weeks trying to figure out the best combinations for performance mods for 1. Look for the “JVM Arguments” box. As you can see here, the memory usage between JVM's is a pretty impactful 1GB. Hover over the installation you want to allocate more RAM to and click on the more options (3-dot menu) and click on edit. In the “More options” section, find the “JVM arguments” field. Delete the _JAVA_OPTIONS entry. I didn't notice any gains after going above 16GB. Now, select ‘Edit’ and then click on ‘More Options’ after a new window opens up. 63 - Rubidium (Forge port of Fabric Sodium) instead of Optifine - Radium. (x. JVM options that affect memory use. I've currently allocated 6GB, and the memory usage goes from 35% to 75%, and memory allocated is at 100%, it is also at 100% if I allocate 7GB or 8GB comments sorted by Best Top New Controversial Q&A Add a Comment Time for Forge load: 3:55 38% Menu CPU idle 5. rmi. STEP 5: Select the More Options tab in the right area of the screen. 3. Marks 64bit software. 2GB: -Xmx2G 4GB: -Xmx4G 6GB: -Xmx6G 8GB: -Xmx8G etc. e. 8 GB. REM Add custom JVM arguments to the user_jvm_args. JVM Arguments for Modded Minecraft (Updated 12/30/13) Thread starter Eyamaz; Start date Aug 13, 2013; Forums. Step 3. Corsair Dominator Platinum RGB 32GB (2 x 16GB) DDR5 6200MHz Desktop. 1-1. To do this: Click on the installations tab. The InitialRAMPercentage JVM parameter allows us to configure the initial heap size of the Java application. JVM Arguments will allow the game to run longer, without these Lag spikes, and FPS drops. Launch the ATLauncher. hour but now it keeps happening every 2 minutes. Click the box and check off "Executable" (javaw. Start the Minecraft launcher & go to the installation tab. Simply go ahead and edit a profile and where it says "Java Settings (Advanced)", tick all the check boxes. It should now be more than 2 gigabytes. In the old launcher at least, go Installations->Edit->More Options->JVM Arguments. Click on the “Settings” option on the right pane of the launcher. The line below shows 3 JVM arguments. The more unused ram, the more heavier the lag gets. If your using any version above 1. Step 2: Click the Java Settings tab. Sunting jumlah RAM yang dapat digunakan oleh Minecraft. gcInterval=2147483646 -XX:+UnlockExperimentalVMOptions -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX. . Thanks. 3. Select the profile you’d like to edit. These are great JVM Arguments for Beefier PC's but if you're using very old hardware (like me) the first one is a better choice for performance and stability. Then add the amount of RAM you would like to the JVM Arguments text box. He also recommends setting -Xms to the same value as -Xmx (allocated ram). The largest world that can support more than 50 mods, 150 players, and 150 GB in size require at least 15 GB of RAM. i went into native launcher and enabled the "keep launcher open after starting game" and it kept my jvm arguments. This can be fixed by adding more RAM through JVM Arguments in the Minecraft Launcher. 16. 1. 2. Click the three dots next to your Java settings and choose “Edit. I also just figured out, before you click on "profile", you need to have enable "advanced settings" on the top-right of launch-options. Tip 3: Allocate more memory to Minecraft. ランチャー上部にあるタブから起動構成をクリックすることで設定画面を開けます。. そうするこ. Jan 12, 2016 at 11:35. Allocate maximum 512MB to Minecraft, assuming you have enough available RAM to keep the system stable. -Xmx is the max amount of ram allocated. If you have 8 GB of ram on your PC, then I'd not recommend allocating more than 6 GB to Minecraft and preferably you should only allocate 4 or 5 GB. Enable the JVM Arguments button in the list and replace. ago. Right-click on the “minecraft. La RAM est désignée par la première chaîne de caractère, "Xmx1G". One is x64, one is x86. Click the three dots icon next to the desired installation profile. # Xmx and Xms set the maximum and minimum RAM usage, respectively. RAM allocation for minecraft has a very interesting effect. The server was still running with only 10-25% free ram left. What JVM arguments do you use (2GB RAM) please I need help. The 2G portion of that denotes the 2GB of RAM that Minecraft has allocated to it. ago. I see many people using upwards of 13gb while a lot of people on here recommend around 6 or 7. server. 4. For example; -Xmx8G is the maximum amount of RAM (8GB) the VM will try to get before running OutOfMemory. Hi, Minecraft need quite alot of RAM to run properly, however too much RAM will actually bring about a negative benefit. You're just asking for more problems. Toggle on the JVM arguments switch. I dont know any arguments but for the last part I can help, first go to the MC launcher and click on ''Installations''. Unable to save changes to JVM Arguments while trying to allocate more RAM. 12?. Dec 22, 2015. Step 1 - Open the Launcher. So what is the ideal JAVA_OPTS for me? I am using these params for now but doubt it is the best configuration. This will tell the game to allocate 2GB of RAM to each client. 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. Paste the text into the JVM Arguments text box and click Save Profile. to assign 4 GB of RAM to the game „-Xmx4G”; for 3. 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. The 8GB memory should now appear at. Generally, when I need more memory for Minecraft, I set the max heap and not the min heap. -Xms: this option sets the initial and minimum Java heap size. To increase the amount of RAM used by Minecraft, you will need to change the JVM arguments. The thing is, I'm not quite sure what the issue is here, I've run the game with more memory in the past, I launch the game with the same arguments as always, being -Xmx3G, yet it still launchs with about half a gig of ram. Task manager shows minecraft using 10gb. -XX:PermSize: Sets the initial size of the Permanent Generation (perm) memory area. 5-7GB. 12. Oracle 32 bit heap FAQ. The RAM that can be used by Minecraft should now be increased. 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. Proceed to change “ 2G ” to “ 4G ” or another reasonably high value. There is only one number in this section of text, and it likely has a default value of 1 or 2. 0 for a physical server of 1 GB full memory, then the initial. Du siehst einen Text im Textfeld "JVM Arguments", dessen erster Abschnitt -Xm1G lautet. Do not allocate more memory than you have physically in your system. Pour modifier la RAM à allouer à Minecraft, cochez esnuite la case "JVM Arguments". Before optimizing java settings, it would get as high as 80 odd %. How to Setup a Server using. The start command has a number of arguments including the one related to RAM allocation: java -Xmx4096M -Xms4096M -jar minecraft_server. The defaults typically aren't well optimized for Minecraft. 186. Go to your Windows search bar. jar nogui. The reason for this is that the maximum number of addresses that you can point to with 32 bits is 2^32,. jar matching the name in the text file Save it and rename it from New Document. Near the start you should see something that looks like -Xmx2G or similar. Scroll down to the “JVM Arguments” section. # They can take any number, followed by an M or a G. 60 gHZ Nvidia Geforce GTX 1050 with 2 GB of VRAM 8 GB RAM (4 GB allocated to Minecraft) Note: I do use FoamFix and the latest version of Optifine for 1. The argument "Xmx" is used to specify the maximum memory usage by Minecraft on your system. Allocating memory won't help with your frame rates if you aren't doing anything that requires a ton of RAM. 5. It means that the OS is free to use the memory as it likes, until Minecraft actually wants to use it. In your launcher, change your Java version to the *now . 1. Step 8- Launch a Minecraft world and press F3 to check how much RAM is allocated. GreedyCraft is a mega hybrid modpack featuring 500+ mods (shows ~540 loaded in game). As usual i changed the amount of -Xmx#G in the settings for that specfic. Keep everything else the same. Hotspot vs. 12GB physical RAM - Allocate 8GB; 10GB physical RAM - Allocate 7GB; 8GB physical RAM - You probably can't play, but if you want to have a try anyway, allocate 6. However, if you already have sufficient RAM, like 12 or 16GB, you may want to allocate more RAM to Minecraft. 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.