I love to play modded minecraft but my laptop is a bit of a potato. You're setting these two options: -Xms14G -Xmx14G. 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. (6 core - 12 threads) 4500mhz, 64Gb DDR3 1600 mhz 9-9-9-26, RAMdisk 8Gb. Adjust RAM for Minecraft. Now I usually run Minecraft by allocating 3GB of RAM to it, I average around 90-140FPS. Heya! After you install vivecraft, find it in the installations tab in the mc launcher and open it's installation settings, expand the advanced drop-down at bottom and u should see a text box that says "JVM ARGUMENTS" above it, you should see some text like "-Xmx4G" all though the number may be different for you, anyways change that number to. . JVM options that affect memory use. Aikar's famous Minecraft server G1GC arguments run great on clients, with two caveats:. How is the performance affected when I allot a lot more minimum heapSize than it runs. Step 4: Click on the maximum memory tab and enter the amount of RAM you want to allocate. 17. jar the server starts without the jvm arguments and ignores the -xmx value. Here’s the process: Click Windows and type Task Manager. 13. OS bit can be either 32 or 64. Follow the steps below to allocate more RAM: Open the Minecraft Launcher. rmi. Después, haz clic en Settings, cerca de la parte derecha de la pantalla. Simply go ahead and edit a profile and where it says. What this does is free up unused memory periodically while java is running, aka cleans up the garbage. Jvm arguments minecraft titan launcherJvm resetting arguments minecraft How to allocate more ram to minecraft on a windows. For example you could replace them with 8192M which means 8 GB of RAM allocated on startup to the Minecraft server. Add the following argument at the beginning of the line: -Xmx<your desired RAM allocation>G. Scroll down to the “JVM Arguments” section. Make sure the Advanced settings is turned on. java -Xmx6144M -Xms6144M -jar forgeserver. 4 will be used in the examples. 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. 25 players and 40 mods: at least 4 GB of RAM. If you have less than 4GB of RAM, type -Xmx2G into the text box. -Xmn is a little tricky. The less I assign MineCraft, the sooner the stutter. 4. Select the green Save button and you're done!We are noticing that the server is saying "Memory Usage: 500mb (50% remaining)". Minecraft is written in Java and the Java Runtime Environment (JRE) may affect your speed when you play the game. More Options: Click on “More Options” to access advanced settings. Task manager shows minecraft using 10gb. Well, in this video, we show you exactly how to allocate more RAM to Minecraft, how much RAM you need to give to Minecraft, and even how to check the. Select the version of Minecraft you would like to change the RAM allocation to, and click on the 3 dots and click "Edit". I'm trying to get the RLcraft modpack working with a shader so I feel I need the best performance I can pump into it. To increase that, all you need to do is change the value of the number. 18? Well, in this guide, we show you exactly how to give Minecraft more RAM. Press the Windows key and the Pause/Break key simultaneously. $200 OBO I recently bought this ThinkCentre machine and I have been working hard to upgrade and fix it, this one runs a fourth-gen i5 vPro (i5-4570) with a base clock of 3. RAM was the next culprit to check seeing as how high the usage was. Step 3: Click on the Java/Minecraft tab. Allocate More Graphics MemoryThe link to the JVM arguments from that screenshot. In the ‘JVM Arguments’ box, look for “-Xmx2G”. The flag Xmx specifies the maximum memory allocation pool for a Java Virtual Machine (JVM), while Xms specifies the initial memory allocation pool. edited Sep 29, 2009 at. Go to “More options“ and find “JVM Arguments” in the Java settings. Select the Installation: In the launcher, select the Minecraft version you want to modify from the “Installations” tab. Step 8- Launch a Minecraft world and press F3 to check how much RAM is allocated. If we had continued, we would have been on a course for a much worse ending. App consumes on 40% of real memory and less than 10% swap space when configured to use -XMs=512m -Mmx=1024m -XX:MaxPermSize=256m. 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. What JVM arguments do you use (2GB RAM) please I need help. How can you allocate more RAM to Minecraft 1. 12. Below are the steps to allocate more RAM to Minecraft using this launcher: Step 1: Run the launcher on your system. idk why that was turned off in the first place but it is a fix i guess. You will see the “-Xmx2G” argument. Minecraft Launcher. I recommend leaving the others alone) -client. Step 4: Save the changes. Minecraft arguments are for who knows what. export JAVA_OPTS="-Dfile. Select the one you want to change the amount of RAM for, click on the. Also tried -Xmx8G and just. This argument can be omitted. I created a simple mod that allows you to send mail to other players on your server. This can have good effects as well as bad effects. . Keep everything else the same. Step 2: Within your Minecraft Launcher, Edit the Profile you'd like to use. Minecraft will usually only use one third of a gig. Go to the install titled Problem Pack. If you have more than 8GB, allocate 4GB, and if you have less than 8GB, take your memory amount and half it. r/feedthebeast •. Busca el modpack que desees y selecciónalo de la lista. Increasing the dedicated RAM further can lead to problems like stuttering. You go into the launcher, click edit profile, check JVM. When it is disabled, the option for JVM-Arguments does not show. Web beyond increasing ram allocation, which major launchers natively support, there isn't much meaningful you can do to the jvm to improve performance. gcInterval=2147483646 -XX:+UnlockExperimentalVMOptions -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX. 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. 32-bit Java is limited to approximately 1. -Xmx<ammount of memory>. Type in "System Information". Let's give Minecraft 4 GB of RAM to play with. 18. 6 x 1024 = 6144, so you write 6144. For more information about the JVM Launch arguments go here Just turn off connected textures and leave 2 GB RAM on your phone. 2 + Optifine Intel i5-2400 . 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. Step 5: Examine the JVM argument line. Near the start you should see. The maximum theoretical heap limit for the 32-bit JVM is 4G. Then, choose the More Options tab. もしもメモリ使用率が極端に高い場合は、本記事で紹介した『JVM Arguments（. 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). Profile's jvm arguments are ignored when launching versionmanifesttypeFreezing everyone Guide pour allouer plus de ram à minecraft java editionMinecraft jvm arguments 8gb ram. Anything above 4gb of RAM allocation will make your game confused with all the extra ram and will lag the game. ago. These JVM arguments (specifically -XX:+UseConcMarkSweepGC and -XX:+CMSIncrementalMode) reduced my game’s memory usage by 2. Turn off fancy leaves in Optifine. ตามค่า default Minecraft จะมี RAM ไว้ 1 GB แต่ก็. Allocating more than half of the system RAM is not recommanded, use -Xmx4G in your JVM arguments. Now, Open the Minecraft Launcher. Sometimes its better to set LESS ram for JVM even if you have 32GB installed. Right-click on the “minecraft. The "2" in the first argument represents the GB of RAM available for Minecraft. Next, select “More Options” from the lower-right corner. STEP 4: To allocate RAM to a Minecraft version, move your mouse over the three dots on the right, CLICK and select Edit. Default Minecraft Launcher. I am truly lost as for who to believe on this question. On my. 2G and the max to 8G allows it to use only what it needs (up to 8gb). 10 single player with 100ish mods, on an i7-3820 with 8 gb of RAM, and a Radeon HD 6800. It’s a percentage of the total memory of a physical server or container, passed as a double value. 7. Minecraft mostly uses a single core of the CPU for chunk rendering. Try optifine. For example, you could replace them with 8192M which means 8 GB of RAM allocated. It isn't supported by all vendors, so check if your vendor supports it <a href="…Today I will be showing you a few simple steps on you to allocate or add more RAM to your Minecraft. ; Change the number in this section of text. -Xmx8G. This is one I'm sure most of you have heard about. HoD. You’re probably running into a garbage collection issue. It’s about the size of a credit card and uses an extremely low amount of power making it ideal for all sorts of projects and ideas!. A continuación, debe ir a la versión que desee (haga clic en Última versión) y marque la casilla Argumentos JVM. 14. The first two flags have the following arguments: "-Xmx2G -Xms1G " I'm sure turning the draw distance way down fixes this, but both these computers can run it fine with max 32chunk render distance save for the 1gb memory cap. Step 2 - Click the 'installations' button. . REM Forge requires a configured set of both JVM and program arguments. Minecraft install. 3 minecraft servers per machine running. Views. This is the official subreddit of the Minecraft modpack RLCraft. dgc. To allocate more RAM to Minecraft, follow the steps below: Step 1: Run the Technic launcher on your device and navigate to the Settings menu at the top right corner. i think i fixed. This means that the JVM should start with 14 GB (-Xms) and grow to a maximum of 14 GB (-Xmx) heap RAM usage. A continuación, debe ir a la versión que desee (haga clic en Última versión) y marque la casilla Argumentos JVM. This JVM argument is used to specify the minimum amount of RAM to allocate to Minecraft. gives you a 64-bit Java. Enable the JVM Arguments button in the list and replace. Select the profile you’d like to edit. 6. Jvm Arguments Minecraft 8Gb Ram. Mods, resource packs or view distances above 16 are the only reasons to make it any bigger though. JVM also interprets the Java programming language because it executes the programs written in Java. MultiMC. To increase the amount of RAM used by Minecraft, you will need to change the JVM arguments. Bearbeite die RAM-Menge, die Minecraft nutzen kann. 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. . 4. Step 3: Click the button with the three dots for the installation you want to manage. Some modpacks actually require a lot of RAM to run properly. OpenJ9 Run 2: Time for Forge load: 3:57 39% Menu CPU. jar or craftbukkit. ). For minecraft, the two biggest ones are; -XX:+UseG1GC and -XX:+UseConcMarkSweepGC As a note, -XX:+UseConcMarkSweepGC has many settings to it as outlined in the fasterj post. Try using a 64-bit version, assuming you're on a 64-bit machine. Then, choose the More Options tab. 99. The 2G portion of that denotes the 2GB of RAM that Minecraft has allocated to it. You can run distance 32 perfectly fine while using 4GB (you could do it with less actually). Also I have friends who play on the server with the same mods and have no memory leaks. The trick is to change the JVM arguments, use Shivaxi's JVM argument string from his page and change the allocated RAM to 8GB and the last argument is -Xmn128M, change that to between 2G and 4G; -Xmn2G, -Xmn3G or -Xmn4G. An average-sized server that doesn’t have hundreds of plugins will run just fine if you allocate 8GB of RAM XMS and XMX if you’re using a dedicated machine to run the. Enables touching of every page on the Java heap during JVM initialization. "-XX:ReservedCodeCacheSize=2048m" tells Minecraft to reserve 2GB of RAM for storing code that might be used again. Java/the JVM does not like having enormous heaps, you will get lower fps from bigger ram settings; and when it does garbage collection (with the default jvm settings) you might crash, freeze client for several seconds (or longer) or even time out from your own singleplayer server. 5-7GB. Quote. 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 amazing game, but one thing you. 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. 0_40tMindCrack 8. D:BudgieCraftMC - Modded>REM Forge requires a configured set of both JVM and program arguments. Allocating More RAM Using Legacy FeedTheBeast (FTB) Launcher. In order to get that line of commands is going Launch Options > Profile> JVM Arguments On > And that is what is in the JVM arguments. server. When you allocate more memory from your 4GB, then it just means you entire computer slows down as Minecraft becomes a bit faster. 1-forge-39. ตามค่า default Minecraft จะมี RAM ไว้ 1 GB แต่ก็. Yes. g. This is the one flag you should probably adjust. Ashzification New Member. If you have more than 8GB, allocate 4GB, and if you have less than 8GB, take your memory amount and half it. However, for those with additional RAM, allocating that extra memory can give significant performance boosts. @ravindra technically you need at least 9 - 10 GB of free virtual memory to create an 8 GB heap, however while the JVM will start with more heap than you have memory very quickly your application will grind to a halt, as will your machine. If for whatever reason you need my pc specs lemme know. 3 ways to allocate more ram to minecraftMinecraft jvm arguments setting √完了しました！. MultiMC. In the Edit Installation Menu, click More Options to edit the JVM arguments. I depends on your CPU and the JVM arguments. Locate the server profile for which you want to allocate more RAM. If you have enough RAM, then a good starting point is typically 8 GB allocated. The Z Garbage Collector is enabled with the command-line option -XX:+UseZGC. Step 1: Go to Settings,. "-Xmx 6G" - Sets the maximum allocated RAM of the Java application (Minecraft) at launch; you should always leave at least 1 GB left over (2 GB is highly recommended if it is available, which is what I did for my 8 GB RAM PC) for your system. Once it's loaded, go to 'New Profile', and click it. I have 10 GB allocated currently with 161 active mods. A. -1. If you check the box marked JVM Arguments you can change the line of code given there. exe whatever file path) to allow Minecraft to execute the file in a certain way. Minecraft suggests a max of 6 gigs. Minecraft always uses way more than 128mb of memory, but allowing the JVM to use less means it will try to release unused memory back to the operating system. 186. Step 3: Paste the text into the JVM Arguments text box, and click Save Profile. -Xmx: This option sets the maximum Java heap size. Jvm Arguments Minecraft 8Gb Ram. Jun 13, 2016 at 6:49. GraalVM Enterprise Edition. This is a special startup script that uses JVM arguments to help the Minecraft server run appropriately on the. I turned on the JVM arguments checkbox and bumped mine up to 8gb just to see what happened, and it ran totally smooth at 32chuck render distance and the memory usage hovered around 1. I have 16gb ram // amd fx-6300 // gtx 1050. Minecraft creates a lot of short-lived objects, so it is better to set this to a larger value like 40% of -Xmx. For more information about the JVM Launch arguments go here Just turn off connected textures and leave 2 GB RAM on your phone. Mine is set to -Xms2G, so on startup it will have 2gigs of RAM. 5 Gigs, and im getting a good 10 FPS. Minecraft suggests a max of 6 gigs. Latest Release) Step 4 - Click. For example you could replace them with 8192M which means 8 GB of RAM allocated on startup to the Minecraft server. The largest world that can support more than 50 mods, 150 players, and 150 GB in size require at least 15 GB of RAM. Use -Xss to set the Java thread stack size. If you are going to use JVM arguments to define the memory allocation, be sure that you are not providing duplicate commands. Change the Xmx1G to however many Gigs you want (i. rmi. Step 3- Open Minecraft launcher and sign in using your personal information. To allocate this amount of memory to Minecraft, go into your game instance's "JVM Arguments". I suggest putting the same number on both of them as there is a performance penalty for dynamically changing the Java memory. minecraft) Click more options. I also just figured out, before you click on "profile", you need to have enable "advanced settings" on the top-right of launch-options. Memory 8 GB or more. I am running Java 64 and minecraft server has been multi-core capable since 1. Allocate More RAM: In the JVM or Java Arguments field, you will find a line of text that starts with “-Xmx” followed by a number. 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. I'm compiling this list for one simple reason. 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. The Raspberry Pi 4 is available in different memory configurations all the way up to 8 GB. -Xms1G will set the MINIMUM HEAP to 1GB at start-up. For vanilla and most modded setups, 4 GB should be fine. 3. 12. encoding=UTF-8 -Xms128m -Xmx1024m -XX:PermSize=64m -XX:MaxPermSize=256m". Arguments minecraft. After I spent well over three weeks trying to figure out the best combinations for performance mods for 1. 2. Aloque mais memória. Select this. Minecraft more options. Se você for analisar a documentação da JVM temos muitos argumentos para poder configurar a Java Virtual Machine. (the fact that Mojang actually had this as a default JVM argument and the issues mentioned in the link shows how little they know about Java performance; I removed it myself and saw better results) The best GC for modern versions is G1GC, which was designed for applications with high memory requirements and allocation rates (though it. What this does is free up unused memory periodically while java is running, aka cleans up the garbage. In fact, some of them seemingly made the lag worse. Step 1: Launch Java Argument Generator. Half of 12 would be 6GB (Of course, that would be a little overkill), so you would put 6GB (My half) into the. At the bottom of the settings page there is a box for "Additional Arguments". ZGC supports heap sizes from 8MB to 16TB. The next steps are divided between Forge 1. You dont need 8 gigs of ram allocated. Click "Edit profile" on whichever profile you want to allocate more ram with when you start and play Minecraft using it. Generally, when I need more memory for Minecraft, I set the max heap and not the min heap. Best JVM arguments for a modpack with 186 mods? How much memory should i allocate, and what should be the minimum? Current arguments:-Xmx11G -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -Dsun. 14. hello, I am making a modpack and Minecraft crashes on startup and tells me that I need to add more ram. JVM Arguments will allow the game to run longer, without these Lag spikes, and FPS drops. Multiple posts warned me that too much RAM could and likely would cause GC freezes. There is only one number in this section of text, and it likely has a default value of 1 or 2. This would need a PC with at least 8. Step 9 – Finally, click “Done” to save the changes. As chickenmac says, make the game only use 2-4gb of RAM for starters. Right-click on the FeedTheBeast icon and click “Edit Profile. For example, you could replace them with 8192M which means 8 GB of RAM allocated. Key. txt to run. You dont need 8 gigs of ram allocated. This is where you can change the memory allocation settings. No - RAM does NOT increase performance. Use JVM Args: Argument Meaning -d64 forces 64 bit mode -XX:+DisableExplicitGC Disables Addition garbage Collection -XX:+UseConcMarkSweepGC Enables an algorythem that does the garbage Collection in the background. Underneath the heading JVM Arguments you'll see a bar with a string of text in it. minecraft jvm arguments. -d64. I have been dedicating 8-9 gigs to the pack but get sudden freezes for around 10 seconds ever 20 minutes or so. In general, the defaults are best. 7. Step 4: Click on the maximum memory tab and enter the amount of RAM you want to allocate. Web beyond increasing ram allocation, which major launchers natively support,. 5 with 8 GB of ram allocated (I have 16gb of ram in total) and im playing the mineshafts and monsters modpack. Always keep this value lower or equal to the -Xmx JVM argument. Locate the -Xmx2G parameter. If you have 12 or 16 GB you can comfortably allocate 8 GB, but there's no reason to go above that. Make sure both the. Pour modifier la RAM à allouer à Minecraft, cochez esnuite la case "JVM Arguments". . For example; -Xmx8G is the maximum amount of RAM (8GB) the VM will try to get before running OutOfMemory. You would put half of that into the Minecraft Launcher. Minecraft jvm arguments fps boost 2022Jvm arguments Minecraft jvm arguments settingFps boost jvm. The more unused ram, the more heavier the lag gets. Step 1: Run the launcher on your system. Minecraft refuses to use more than 1g of ram, even via command prompt [1. If you install a 64-bit Ubuntu, I believe that. -Xmx doesn't allocate ram, rather it gives the JVM permission to ask the OS to allocate RAM as needed. Check Details Minecraft jvm arguments ram command refuses 1g prompt even via than use check parameter memory enter then there. 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. Here’s a short overview of how much ram you’ll need depending on the server and mods: 15 players and 25 mods: at least 3 GB of RAM. Here’s how to do it: After opening the Minecraft Launcher, go to the Launch options tab. How much RAM do I require for a modded Minecraft game? The minimum system requirements for “vanilla” Minecraft (completely unmodded) are 4GB of RAM, but mod users regularly allocate 6GB or more to keep the game running smoothly. The start command has a number of arguments including the one related to RAM allocation: java -Xmx4096M -Xms4096M -jar minecraft_server. You should rather try looking at what your PC is really doing, many things can have a negative impact. Web the line below shows the 3 most know jvm arguments. If your MC is taking 15-20 minutes to load, and is thrashing 100% CPU, you are very likely a victim of this issue. 2. Allocating memory won't help with your frame rates if you aren't doing anything that requires a ton of RAM. rmi. In the ‘Profile Options’ section, look for ‘JVM Arguments’ and click on the switch next to it to turn it on. That's what you need to change. 28GB Menu memory idle. Initially tried playing around with jvm arguments to no avail. Use this syntax to specify the amount of memory the JVM. Daverick02 • 6 mo. Oh and 8 GB are not overkill if you have at least 16 GB available. -Xmx512M . server. got a memory error, closed out of Minecraft, tried to play again from Curseforge launcher, getting the not responding white screen even after reloading curseforge and setting minecraft to use 8gb instead of 4gb in the curseforge launcher settings. 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. Allocate less memory to Minecraft, try -Xmx4G in your JVM arguments. 16) then it might be possible, you just have to find a. 8GB of Memory Java x64 1. Minecraft is going to make memory decisions based on -Xmx, not -Xms. After that, the full argument should be “-Xmx8G”. In the “ Memory Settings ” tab, set a value for “ JVM Arguments “. Step 4:. i see, i have it a try a while ago and i didn't like the idea of other launchers. • 3 yr. Unable to save changes to JVM Arguments while trying to allocate more RAM. 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). Make sure the Advanced settings is turned on. I used them to run Crackpack 3, and did see a significant improvement. 2] [intellij] debugging vanilla minecraft √完了しました！. Toggle on the JVM arguments switch. Want to know how to allocate more RAM to Minecraft 1. I cannot increase the amount of RAM available however so I need help finding some JVM arguments that will work to decrease RAM usage. exe file. In the bottom, you will see the "Advanced Java Settings. I was wondering how much ram I should allocate for Minecraft, and also, if anyone could tell me if this is the correct way to do it in the JVM Arguments -Xmx6G -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn7G Protip: get a copy of Red Hat's OpenJDK with Shenandoah (concurrent GC!), set your arguments to tell the JVM to use Shenandoah, and then laugh at people while giving Minecraft some absurd amount of RAM. OpenJ9. CryptoTo limit the total RAM consumption, use MaxRam flags. I see many people using upwards of 13gb while a lot of people on here recommend around 6 or 7. 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). -Xmx1G will set the MAXIMUM HEAP to 1GB at start-up. Allocate More RAM in Minecraft Launcher. Tip 3: Allocate more memory to Minecraft. Jvm Arguments Minecraft 8Gb Ram. Sorted by: 51. 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 believe Purpur is useful for survival servers due to its extra configuration options. 7. Tick the box next to 'JVM Arguements'. rmi. Do not put a number beyond 75% of the Physical RAM. Note: 1GB = 1024MB. -Xmx1G will set the MAXIMUM HEAP to 1GB at start-up. -Xmx e -XX:MaxMetaspaceSize -Xmx é o argumento mais importante da JVM.