Minecraft optimized jvm arguments. The easiest solution is just drop your java arguments in the launcher. Minecraft optimized jvm arguments

 
The easiest solution is just drop your java arguments in the launcherMinecraft optimized jvm arguments 2 with 180+ Mods via Forge

11 participants. SIMD optimized operations are supported. That file is written in the /tmp directory and is used for. BUT READ IT FIRST BEFORE ACTING!! Introduction The purpose of this thread is to help players with less capable graphic cards in their computers get better performance in Minecraft. 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. If items are disabled, there's likely a performance reason. server. If you don't know how, here's how: Go into the launcher and look at the installations tab. 13 without downloading it. One of the effective ways to optimize G1 GC performance is to study the causes triggering the GC and provide solutions to reduce them. So now, we'll start to set up our configuration inside. Those are array of either a string corresponding to the argument or an object containing the value and the rules to check before appending the given argument. 14 multithreaded lighting; single-core CPUs are now practically unusable. Press 'Save Profile' & Press play. 0. Java run arguments can be used to optimize Minecraft performance by ignoring assets that are not needed. Minecraft Jvm Arguments And Optimization Youtube Jvm Arguments Not Working For Me Java Edition Support Support Minecraft Forum Minecraft Forum Fixing Memory Issues Program Java Argument Generator Speed Up Minecraft Minecraft Mod The Best Ways To Improve Minecraft Performance 2021 Plaguer My Friend Told Me. It resets your JVM arguments to its own defaults and it actually set some bad ones, like the -Xms256m I mentioned above. Minecraft jvm arguments 8gb ram. Pufferfish Server Optimization Guide. 14. JVM Arguments is a set of code that gives minecraft more ram which speeds up the game. -Xmx and -XX:MaxMetaspaceSize. Development. How you do it with a program that does support it is program specific. Server. Using Better FPS and FerriteCore helps. - 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. 18. if I find better ways to increase performance. GTX1070. Then go on JVM Arguments and put -Xmx4G -XX:+UnlockExperimentalVMOptions -XX:+UseZGCMinecraft jvm arguments 8gb ram. The file used to launch the server. g. keys. jar. It is running on an Intel core duo core 2. Use the single-threaded serial GC: -XX:+UseSerialGC. But like I said, it happens that minecraft mostly only uses the memory you. It is the largest bottleneck, and it is very hairy to tune. The JDK contains both a JRE and a JVM, but. This is the most important optimization/overclock you can make to your Pi because I/O performance WILL be a major bottleneck for the Minecraft Pi server!. For example: For allocating 4 GB of RAM to Minecraft, replace "Xmx1G" with "Xmx4G". Best Java Arguments for Modded Minecraft? Or any Java version for modpacks? Problem I allways experiment fps drops even if my specs are above recommended ones My. 41GB Menu memory idle. -XX:+UseG1GC -Dsun. In this step-by-step guide,. empowers organizations to optimize performance, ensure availability, and reduce remediation time across on-premises and multi-cloud environments by increasing visibility, intelligence, and productivity. A lot of 🚩, OptiFine supports running the game with arguments, some of which are not available in the options menu. Lower resolution obviously resulted in increased fps. How much ram have you got? At most give your game 50% of your ram. What this does is changes the amount of RAM Minecraft starts with. 4. Check out our training portfolio for free! There are way too many JVM arguments for anyone to digest and comprehend. 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. . You'll need to do some testing though as this type of mod occasionally breaks others. Unlike the Minecraft server, Velocity can actually benefit from the extra cores and single-threaded performance is not as important. Minecraft cannot set the desktop resolution on a Windows machine. keys. Mark2: Add the following line to your mark2. The hardware: The server is currently being run on a HP Z400 with an X5670 (2. Locate "JVM ARGUMENTS" and find "-Xmx2G". No, assuming the world generation is not in progress, the chunks load very well, and that is without any fancy startup arguments. server. x. Go to your minecraft launcher setting and find the JVM arguments box. Also important: JVM arguments are case-sensitive; Try to install the non-native version of Java (the download can be found here). To anyone who the rest of this article isn't helpful for: In the Minecraft launcher, click edit profile. 1. To fix the Minecraft low FPS on a high-end PC you should also make sure that your graphics drivers aren’t outdated or corrupted. Includes settings for Render Regions, Chunk Updates, and. In my JVM Arguments Guide for Minecraft, I've been able to decrease a server RAM usage by 2x vanilla, and literally 4x with 130 plugins running on my server (Spigot, but still, Minecraft). You should always opt to use Aikar's optimized JVM flags for your Minecraft server. end=100. Thanks, I recently was only changing the first amount, not the second. 139. NOTE When declaring JVM_OPTS in a compose file's environment section with list. I have 10 GB allocated currently with 161 active mods. No JVM arguments present in that profilePlaying Minecraft? Want to optimize the game for the best performance and visuals? Want more FPS out of your game? Don't worry, there are a lot of small chan. (I will personally fight any host that suggests otherwise. Reaction score. Side note: if anyone wants a cheap server, these things are inexpensive on eBay. 12. 6. minecraft jvm arguments list 210907-minecraft jvm argumentsPerformance optimization. So I'd apreciate some help ! SpecsJVM Arguments. If you are not, then you need to update your video card drivers and. If typing out lines of Java code isn't quite your thing, don't worry, there's a solution for you too. java. Are these arguments valid for the minecraft server. Why do I still play in 1. TheMasterCaver's World - my own version of Minecraft largely based on my views of how the game should have evolved since 1. If you find this interesting then feel free to try this yourself!Try an leave at least 1GB for the general system processes and stuff like that. GUI. dgc. You should only change an option, if you really have a reason to deviate from the defaults. If you are already using jvm args and have 8gb allocated, you could try adding cull particles mod. I then removed unused plugins and all plugins that caused tps lag in Aikar's Timings v2 (except for Slimefun, Exotic Gardens, and Citizens). 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. server. If the tick rate is bad or spiking, you'll have to use sampler's profiling feature or Opis to see why. 4k 10. By specifying thePosts: 13,218. Heap size. Open Minecraft launcher. Includes settings for Render Regions, Chunk Updates, and. This best practice advice applies to AM, DS, IDM and IG running on Java® 11 (or 17 where supported). As of Minecraft Java Edition 1. rmi. It just forces the GC to run harder and lag the main java thread. For 1. bat. You will get a core dump file in which you can find the JVM parameters used while launching the Java application. 8. 1 the game has used a separate thread for the internal server in singleplayer, enabling the game to run on two cores, with many more threads added in later versions; 1. - Paper has a very efficient algorithm for explosions with no impact to gameplay. 4 for Minecraft: Java Edition. Java 8 64 bit will help a bit, non-default JVM arguments not really. The first thing to keep in mind is that there is no "best" configuration. With newer OpenJ9 releases, the issue with static initialization is now fixed and it should compatible with any Minecraft version. The MultiMC default memory settings are suitable for lightly modded instances or vanilla Minecraft. - This is a big performance setting as it forcibly reduces the max render distance for players. 4) Minecraft 1. 5GB: -Xms2500M. 781. NOTE MultiMC is a modding-friendly alternate launcher for Minecraft, which is recommended. 2, try running the game with the default JVM arguments for comparison. 18, the Minecraft launcher is bundled with the Microsoft Build of OpenJDK (Java version 17. Step 8: Click on “More Options” and locate the “JVM Arguments” box. ZGC supports heap sizes from 8MB to 16TB. Adjust the JVM (Java Virtual Machine) arguments in the launcher. Setting Java as a priority might reduce lag issues. Modify the maximum (first flag) to have what you calculated earlier; e. 2, using the JVM arguments posted here or in. the pack comes preset with the makeup ultra fast shaders. It's a mod SPECIFICALLY created to optimize Minecraft to reduce lag and boost FPS and has been used in the Java community by Youtubers and regular players alike. We deploy optimized JVM arguments by default to make your server run even better! Read below for more information. Aside from performance mods and arguments, what are you trying to run? If you want to play a heavy modded technical pack in the latest Minecraft version, i doubt it will ever work even at minimum settings with Sodium and stuff; but if you just want to play Minecraft but nicer (for example, a vanilla plus modpack in a version up to 1. To resolve JVM errors when running Minecraft on Ubuntu, you can adjust the Java arguments in the Minecraft profile settings. (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. Java 17 arguments for modded minecraft Question. For me, 1. command-name. Explicit Heap Memory – Xms and Xmx. These JVM arguments (specifically -XX:+UseConcMarkSweepGC and -XX:+CMSIncrementalMode) reduced my game’s memory usage by 2. Step 3: Paste the text into the JVM. I don't know if it's the size of the modpack or my computer but whenever I enter a world it's always s. txt file says this. rmi. Allocating More RAM Using Legacy FeedTheBeast (FTB) Launcher. Ensure that Xms=Xmx. Locate the server profile for which you want to allocate more RAM. The UI of the installer is not that great, but I'm hoping to fix it up later. JVM Statistics Causing Long Garbage Collection Pauses Some people reported that on Linux systems, during high I/O utilization the garbage collection can pause threads for a long period of time. 10. the rest keeps reseting like I said. The launcher itself isn't the problem. Your mileage may vary, though, so it’s good to try different arguments and see what’s best for you. Save the file, and then launch the game as normal. The Java Properties File Format. The MyApp argument specifies the name of the main class that should be launched when the JVM starts. You may need to add those as well. How to optimize your Minecraft to load chunks as fast and efficiently as possible on with Optifine. docker run. 5. If your MC is taking 15-20 minutes to load, and is thrashing 100% CPU, you are very likely a victim of this issue. Best Minecraft launch options (jvm arguments). Desktops have an integrated gpu and if your a gamer then probably another gpu attached as a pci card, so if it was the wrong graphics processor and you want performance let me ask you, why aren't your two gpu's crossfired? Could someone tell me what are the best arguments for Modded Minecraft 1. 2 until Minecraft 1. exe -Xmx4096M -Xms2048M -jar <location of your Minecraft exe>. -XX:+UnlockExperimentalVMOptions Allows all arguments listed here. With newer OpenJ9 releases, the issue with static initialization is now fixed and it should compatible with any Minecraft version. server. Anyway, the true answer to your question is "There is no best java arguments for Minecraft". To assign more RAM to the default Minecraft launcher, you need to do the following: Open your Minecraft launcher and click on the Installations tab. For modern versions, 8 GB (with proper JVM arguments; linked is a good starting point for those) tends to be the best starting point for those who have enough RAM to support it. #1. In this article we will go over server. 700+ particles loaded is probably killing your cpu a bit. If using OpenGL, you mentioned the way. Click the three dots next to your Java settings and choose “Edit. In these cases check the root . If a value is not mentioned here, it is recommended to leave it as the default setting. Though a PermSize of 128m normally suffices if your not trying to make the JVM attempt what I try to do in the OP. 3) 1. Use these flags exactly, only changing Xmx and Xms. Say you have allocated 1 GB of memory to your container, then if you configure -XX:MaxRAMFraction=2, then approximately ~512GB (i. Use the single-threaded serial GC: -XX:+UseSerialGC. 16. Information about Java Virtual Machine (JVM) arguments you can use in Web Help Desk. Thanks. For the JVM arguments: You are only changing the -Xmn argument. Edit your profile and on the bottom set your Java virtual machine settings to allocate at least 4G. Type the following this is for 4GB: C:\<location to your javaw>\javaw. exe (e. Plazma PBR Realistic Texture Pack (Free 512x Download) 2048x Minecraft 1. So, if we were to put -XX: AggressiveOpts, it would look something like this:// Optimized JVM arguments for Minecraft 1. # A good default for a modded server is 4GB. Add the following argument at the beginning of the line: -Xmx<your desired RAM allocation>G. Okay so this post is super outdated but people keep trying this command which doesn't exist, at least anymore. Click More Options at the bottom. -XX:+UseG1GC is more popular but did nothing for me. It's a wild wild web out there, and in particular when it comes to modded minecraft, you may have noticed there's an awful of of outdated and bad info out there. yml, bukkit. Note: Never try to give Minecraft more Ram than you have!Today I solve the crash on loading up the world and briefly explain how to fix the "Fatal Exception" error. 93 GHz, 6 core, 12 threads), and 24GB of RAM. This allows the JVM to take full control of the allocate RAM and is beneficial to performance. Quick Answer. Or if they did. CRF models will also work with JVM up to 14, but using the Deep Learning with JVM beyond 11 will lead to issues. 4. Minecraft: TheMasterCaver. 2. The first two flags have the following arguments: ". I decided to create this post for people trying to find the default JVM arguments in Minecraft. 16 supports up to Java 11, I believe. -Xmx and -XX:MaxMetaspaceSize. JSON, CSV, XML, etc. 20, you can adjust the allocated RAM by modifying the JVM arguments in the game launcher. here's. Server Owners : How to optimize your world for 1. OpenJ9 is a newer JVM that is said to have better startup times and lower memory footprint than HotSpot. Faster Minecraft using java arguments 2: For advanced and hugely optimized gameplay, see this. You know what they say about too many chefs!These JVM arguments (specifically -XX:+UseConcMarkSweepGC and -XX:+CMSIncrementalMode) reduced my game’s memory usage by 2. Additionally, you should only reduce the values mentioned in this guide. CryptoThe java command supports a wide variety of flags falling into the following categories: Standard options that are guaranteed to be supported by all JVM implementations out there. Click on MORE OPTIONS and change under JVM ARGUMENT the first number found after -Xmx. 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. Click either Home (Windows) or File (Mac), then either click New item (Windows) or select New (Mac) and click Text Document. Make sure to set this flag when playing with arguments. 15 will not do well with such low memory…) java -Xms10G -Xmx10G -XX:+UseG1GC -XX:+ParallelRefProcEnabled -XX:MaxGCPauseMillis=200 -XX. -e JVM_OPTS="-someJVMOption someJVMOptionValue". General JVM options can be passed to the Minecraft Server invocation by passing a JVM_OPTS environment variable. With 32bit java, the maximum is around 1500MB. Enables touching of every page on the Java heap during JVM initialization. 33GB Menu memory idle. For IBM® i and distributed platforms, click Servers > Server Types > WebSphere application. Here’s the process: Click Windows and type Task Manager. Optimised: 6. -Xmx defines the. anyone know of any 1. In an OS environment where we’ve installed both 32 and 64-bit packages, the JVM automatically chooses the 32-bit environmental packages. 18, the Minecraft launcher is bundled with the Microsoft Build of OpenJDK (Java version 17. Impact: Minor. New in version H3. Special thanks to Keybounce for his research and ideas. Third -d64 and -client aren't necessary since java automatically just detects the correct shit. 28GB Menu memory idle. Due to your CPU only being 2. In most cases, setting a high Heap is actually counter intuitive performance wise. Probably for programming convenience and out of stability reasons. Then, try using the following arguments: Optimize Medieval Minecraft 1. minecraft directory. From version 15 on, we don’t need experimental mode on: java -XX:+UseZGC Application. Running the new default arguments I noticed that the performance is much worse, especially when allocating 4 GB of memory. This is mainly achieved by entering a long chain of JVM. 0 -Dfog. -XX:MaxGCPauseMillis=200 -XX:ParallelGCThreads=<var> -XX:ConcGCThreads=<var>. required. shsuperfly2000. The /r/feedthebeast subreddit is not affiliated or. Step 7: Select the Minecraft version you want to allocate more RAM to. For those. JVM Arguments will allow the game to run longer, without these Lag spikes, and FPS drops. Yes. This is useful when wanting to compare performance of the Graal. Below is a short guide on how to use the program: Step 1: Launch Java Argument Generator. 7. 8. properties: java. What -XX:+UseConcMarkSweepGC and -XX:+CMSIncrementalMode. true. Just click the "Install Pack" button, and choose how much RAM you would like to allocate by using the. properties Optimization. Impact: Heavy. 2 - Lock all existing memory regions before JVM initialization (can mlock up to 150MB). The first thing to keep in mind is that there is no "best" configuration. server. -XX:-UseJVMCICompiler: This disables use of the Graal compiler as the top tier JIT. If you are on a host and use multicraft. Allocating more RAM to Minecraft can smoothen out the game. The first setting is the game’s. 2 and assetsIndex 1. Open the 'bin' folder and select the 'javaw. Create a text document in your server folder. 12 to 1. 8 and 1. jvm and arguments. java -Xms2G -Xmx2G -XX:+UseG1GC -XX:G1HeapRegionSize=4M -XX:+UnlockExperimentalVMOptions -XX:+ParallelRefProcEnabled -XX:+AlwaysPreTouch -jar bungeecord. Sixth The CMS Collector was replaced with G1GC in Java 9 and -XX:+UnlockExperimentalVMOptions doesn't unlock it. exe file. Flags. Oh and 8 GB are not overkill if you have at least 16 GB available. PowerShell. Min/Max Allocated Ram to your Minecraft client. 1 modded (fabric) server jvm arguments. You can view, and change the Java™ virtual machine (JVM) configuration settings of a process for an application server. -server. The Java Virtual Machine (JVM) is the component that runs Java bytecode. The performance was once again impressive, with an average of nearly 200 fps while playing Minecraft on a laptop primarily used for development rather than gaming. Once it's installed head on to your Minecraft launcher and create a new profile Select the Fabric Loader you've just installed in the version Click on more options and select Browse in Java Executable. But you can set the RAM to 4096M, via -Xmx4G -Xms4G You can use Fabric mods to boost performance, way more than. 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. The user_jvm_args. Many months ago, I did an extremely extensive study into Garbage Collection and Minecraft, and got a really deep understanding on Minecrafts allocation behavior, general object life expectancy and collection rates. chunk. This is probably caused by the JVM using a memory-mapped file called hsperfdata. server. It entirely depends on the modpack and your computer, so be sure to experiment with different RAM allocations and JVM arguments. 14. Minecraft Java run arguments are parameters passed to the Java Virtual Machine (JVM) when a user launches the game. As you can see here, the memory usage between JVM's is a pretty impactful 1GB. Here I’ll just share all the arguments for JRE 1. every version should use these arguments, you can find an explanation of them on some old post. Step 3. 2% received a huge boost in performance which is better than Lunar Client's JVM arguments and JRE. I have been using the same starting arguments since version 1. It can be enabled by passing following JVM arguments to your application during startup time: Up to Java 8:It's become pretty common advice in many circles of the internet to increase the amount of Memory Minecraft can use via the -Xmx argument. 2 will vary depending on the system specifications, but some options that may help include. You'll need to do some testing though as this type of mod occasionally breaks others. MultiMC generally adds most of the relevant JVM arguments itself, without any need for. On this page, click "More options". 12 (both with optimization mods), and I have seen 1. 9 with Optifine I wonder what JVM argument is best for me. 5. Additionally, ensure that Java is installed and. 16. Here are the steps to study the GC causes. 9 UPDATE. My startup script looks something like this: screen -dmS minecraft java -Xmn2048m -Xmx6G -XX:GCTimeRatio=2 -XX:ParallelGCThreads=4 -XX:+UseParNewGC -XX:MaxGCPauseMillis=2000 -XX:MaxPermSize=128m -XX:+DisableExplicitGC -jar. This is only for 64 bit systems. By default, the game gets 2 GB of ram allocated to it. you can upgrade to optifine G8 but then you have to update entity culling to the newest version, ive. Go to your minecraft launcher setting and find the JVM arguments box. -Xms and -Xmx. July 2, 2018 in Java, Minecraft, System Administration. 0. Toggle on the JVM arguments switch. Yep, it's true! All you need to do is enter the following Java argument in your Minecraft launcher: -Dfog. 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 bigger bottleneck is probably the RAM if you are using the default RAM allocation that Minecraft uses. -XX:+UseG1GC -Dsun. However, you will have issues if Java needs additional. gcInterval=2147483646 -XX:+UnlockExperimentalVMOptions -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 . I was able to perform well with multiple people on while using the server jvm. </li> </ol> <h3 tabindex=\"-1\" dir=\"auto\"><a id=\"user-content-hotspot-jvm-arguments\" class=\"anchor\" aria-hidden=\"true\" tabindex=\"-1\" href=\"#hotspot-jvm-arguments\"><svg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1. 8+) Update. Near the start you should see something that looks like -Xmx2G or similar. GreedyCraft is a mega hybrid modpack featuring 500+ mods (shows ~540 loaded in game). And what im searching for is JVM arguments to improve the server performance even more as im not that familliar with java 17. One of the most popular ones is -XX:+AggressiveOpts, used in over 20,000 places on Github. Change verison 1. properties optimizations. How To Use Do not modify ServerStart. Minecraft relies on RAM for data storage and process execution. log will be created in the root . I'm still not entirely sure of what the purpose of MDA is but whatever. Change “2G” to the amount of RAM you would like to allocate for Minecraft. Following my infos below, what are the best 2022 JVM arguments to get the highest/most stable FPS, without any crash please ? Computer infos : - OS : Windows 7 64 bits installed on SSD - CPU : Intel (R) Core (TM) i7-2700K CPU @ 3. To enhance FPS in Minecraft 1. 16 use less at times as well. To allocate this amount of memory to Minecraft, go into your game instance's "JVM Arguments". How to optimize your Minecraft to load chunks as fast and efficiently as possible on with Optifine. This includes simple adjustments like the size of the heap, through choosing the right garbage collector to using optimized versions of getters. Topics java minecraft performance jvm voxel arguments java-virtual-machine optimisation 3d-game block-game fps-boost pixel-game Pause times are independent of heap size that is being used. Seems like a good option there. By default, this text is in the JVM arguments:JVM arguments don't fit everyone, but the one that is shipped with Fabric by default is made to fit the most overall. Then click Save. With optimized jvm arguments it’s not as big of a problem (and I think the regular Minecraft launcher has used some by default for a while now) but it can be an issue. bat file to start the server, add --forceUpgrade In the end. The bigger bottleneck is probably the RAM if you are using the default RAM allocation that Minecraft uses. help with JVM arguments please. New in version H3. bat or ServerStart. Two Members of the SpigotMC community have written and been updating a Guide on how to optimize your paper. Limit heap usage (especially on large systems), e. Optimize JAVA for MineCraft in a EXTREME way :P -- NEED FEEDBACK, THX !!. They are common to all JVM garbage collectors. so text region (can mlock up to 20 MB). 15: Boost fps with custom jvm (NO) Boost fps with buy new PC (YES) 👍 1 ItsMeGary reacted with thumbs up emoji 👎 2 MinecraftFabricEnjoyer and OEMunlag reacted with thumbs down emoji 😄 2 ItsMeGary and RizuRey reacted with laugh emoji I would very much appreciate any help with my JVM and specific Java options that will help optimize my server. , I would use "-Xmx4G ". This is true in the brand new versions of the Minecraft launcher, so with older. The JVM arguments : -XX:+UnlockExperimentalVMOptions -d64 -Xmx 6G -Xms 6G -XX:+DisableExplicitGC -XX:+UseParNewGC -XX:ParallelGCThreads=12 . 6. To allocate this amount of memory to Minecraft, go into your game instance's "JVM Arguments". g. You really only need to get deep into tweaking GC when you have limited resources like RAM or slower processor (excluding weird edge cases). GameStop Moderna Pfizer Johnson & Johnson AstraZeneca Walgreens Best Buy Novavax SpaceX Tesla. PolyMC unfortunately can't easily help users with most of these. This is my spec and I use forge 1. Example: java -Xmx1G -jar minecraft_server.