Hello, I ran into a problem of trying to do maximum optimisation of my server. JAR with the flags. Create a . Program will exit. This is done using pcopy:In trying to evaluate this, I think this means 1. Protection, Claims, GriefPrevention, Flags, Rent, Sell. Version: 2. 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. I changed both Xms and Xmx to 10G, because the flags recommend matching them. Turn my firewall off. The errors may vary, but they always contain a cause and suggestion on how to resolve the issue. I tested these on my server, and have been used for years. Hi everyone, I am the owner of a prison server with an average of 40/50 players, the server has about 90 plugins and has 40gb of dedicated ram with paperspigot 1. Minecraft server can't allocate full { {SERVER_MEMORY}} amount in XMX #3726. 2 paper build on my Pi 4. It has 8GB of ram and an i3 10100. 18. (For example the Aikar garbage collector flags options) processParameters Here you can set custom process parameters. 1. Edit: I thought you wanted each individual flag choice explained, which is all listed in the page. An extra optimization to Aikar flags, the JVM arguments that make your Minecraft server smooth. TheKingElessar Legacy • 2 yr. . Xmn is useless, and having Xms=Xmx is the WHOLE POINT of aikar's flags, and a big part of the stability and perf uplift comes from that Sub point: Aikars flags are not great, the latest Ryzen 9 7590x, the G1GC isn't as efficient as ZGC. Hello, I run different Fabric modpack, but this might be your issue too perhaps. Sign up for free to join this conversation on GitHub . gt to discuss. sh. If you are running with 10GB or less memory for MC, you should not adjust these parameters. Protection, Claims, GriefPrevention, Flags, Rent, Sell. As you can see it's just aikar's flags, with minimal necessary changes (xms value, xmx value, -jar name). Startup flags might help, but without hard evidence I cannot say for sure. After some research and trying to use Aikar’s startup flags, I discovered with Timings that the are some lag spikes interval arround 2-3 minutes and the GC might be the cause. I have 6gb ram on a server, leaving 1gb for os and everything, and dedicating 5gb to the minecraft. Enter the directory containing the flags. ( CraftPlayer and CraftWorld cross reference each other before being normally GCd). idk this guy above says they use 3600 for hosting and it can handle 30-50 and you say it can't handle 30 players. OpenJ9 GenconEdit: Here is Aikar's testimony, he is an expert at Aikar flags. Xmx represents the maximum amount of ram you server can use in ram and Xms represents the minimum. bat. The server runs Java 11. . In your server console, type /whitelist add username where username is your MC username. Zgc requires large heaps to be usable in minecraft high allocation rate. flags. I have magnesium, clumps, ai improvement mods, allocated an adequate amount of ram, prioritized java's CPU usage, closed everything other than Minecraft, ran antiviruses and is still have some lag spikes. You haven't really got a lot of ram, cpu probably isn't great and you aren't using Aikar flags You should consider giving the server more ram (6-10gb) trippin. install ipv4 ipv6 java java 11 Java 16 Java 18 java 8 java vesion jvm larger plan launcher login mail minecraft minecraft server modpack mtr mulicraft network In my experience it was usually a bad idea to run minecraft server in docker. They are the most tested and reliable set of flags out there, with time there will probably be a better set of flags for your server that utilize the new GC but for. 1: This flag is used. I want to reduce their spawn rates. Includes many configuration options such as Aikar's flags, automatic restarting, and Pterodactyl overhead calculation. CMS and default may suffer the same issue. See section More then 12G below for additional large memory optimizations If you have a place where you can put the startup flags in directly, you should be able to just use Aikar's flags there including the xmx and xms values, and leave the max heap size empty wherever else. Enables the server's GUI control panel. The JVM. Selamlar dostlarım, Ben Mustafa Esad! Bugün yeni bir tutorial videosu ile sizlerleyim. well, I guess worked? It ran with 2 or 3 people so I don't think it made a difference. 2020–present. Id say 3GB , if you go with PiglinHost ask them to install Aikar flags for you, will help a bunch with performance and memory. Notifications Fork 7; Star 197. The server runs Java 11. At the same time, it is hugely outdated, everything that it implemented was innovative in the days of JDK 8, but now it is not. I was wondering if you'd be able to show me how to incorporate the aikar flags into the launch file cause I have no idea. If this dedicated server is not capable of holding 100 slots, what dedicated server should I buy? I see many servers with many online users and they have no problems, I just want to have a server with a maximum of 100 players. Related Topics Minecraft Sandbox game Open world Action-adventure game Gaming comment sorted by Best Top New Controversial Q&A Add a Comment AutoModerator • Additional comment actions. I have also looked up into this issue and saw that my colleague has contacted you and the topic was resolved in discord. Port forward to 25565. If you still experience lag after first 2 steps, you should look into Citizens. wake-up-inactive. His garbage collection is based on the G1 algorithm. 15 (Java 8+, MC 1. If you do not have a multi egg server you need to request it from your hosting providor!How to get a custom domain for your minecraft server:Flags are currently the most optimised and tested startup flags for Minecraft. So, you shouldn't lose progress if it runs out of RAM. Use Aikar's flags, 16GB is probably too much. If these flags help your server, consider donating! The JVM Startup Flags to use – MC 1. 3. More . They all give me the same result, the memory usage just goes up indefinitely until the server crashes. If you have issues related to Paper, report them on Paper's issue tracker, not on Spigot! max-auto-save-chunks-per-tick Default: 24 Optimized: 6 Performance Impact: Heavy This slows down incremental chunk saving during the world save task. Aikar flags seen here Aikar's Flags | PaperMC Documentation. Miscellaneous. entity-activation-range. Describe the problem The jarfile isnt downloaded or is downloaded but not saved into the /data directory, so the server can't start because it is unable to use the missing jarfile Container definition version: "3" services: Minecraft: im. For better GC. This thread is archived. Deividas. The AMD is Desktop CPU, Xeon is Server CPU. 18 paper spigot. Content mods that add machines, worlds, monsters, etc, will take more than a mod that blurs your inventory screen for some reason. Generally, Aikar flags are still considered best practice. I was able to perform well with. Automatically restarts the server after it crashes or is stopped. Aikar's flags are a great way to optimize your Minecraft server's performance, and will allow you to squeeze out every last drop of performance from your CPU and RAM. Now it's time for me to put it in myself and while I'm sure it's not very hard, I have to confess that I have no clue how to go about doing it. 13. Generally, Aikar flags are still considered best practice. There is A LOT going on other threads, namely the Light Engine, but also plugins galore and if you have chunks generating, then you can very easily max out 4 cores (more so on Paper)Thanks! I did LOTS of changes and the performance improved! I also found out that LeaderHeads was causing the server to freeze for more than 30 seconds sometimes, removing it literally took all lag. . Spigot is not providing anything for this, since it is a separated and old Command manager using the old NMS system. ^ Oracle GC tuning guide explaining the behavior, use cases, suggesting flags for tuning, etc. Further, more ram means java sees there is so much more free ram, I can wait longer until i check ram for garbage. Tighten Up Your GC with Aikar Flags. If you have a Game or Minecraft server with us. Use Aikar flags, make sure that your xms and xmx match, set both to 6GB, yes there are downsides to giving the server too much ram but 6GB should not be enough for the GC lag to kick in, use Paper or Purpur, pregen your world, optimize the server using this guide and keep your plugin list small and light. These flags are used to configure the Java Virtual Machine (JVM) that runs the server, and they can help to reduce lag and improve overall performance. Old plugins Description: Some plugins may SEEM to function normally, but in reality have some incompatibilities with your server version, causing potential memory leaks or errors. @DaneEveritt So when i got 1024,i should change it to 524?Join #aikar on Spigot IRC - irc. 2/ Sử dụng Aikar Flags Aikar Flags là gì? Bạn có thể xem chi tiết ở đây (nếu biết tiếng Anh) Làm sao để sử dụng Aikar Flags? Đơn giản thôi, bạn cứ copy dòng này vào file . OP should just leave his memory at 10 GB and move on. json AIKAR flags Additional files Plugins Server Types Custom PaperMC ServerStarter Travertine Vanilla Waterfall Deployment Operator Docker Kubernetes Helm Development Perfrom a Snapshot. These flags are made by Aikar and you can find the explanation for the flags here. Very strange, CPU class is one story but raw processing power of 3600 is bigger. All the mods are up-to-date and are 1. The only 'special' flags I use are: -XX:MaxGCPauseMillis=100 and -XX:+UseG1GC. The set of flags documented there can be added using Aikar's flags . 103 votes, 40 comments. Creator of Timings - Open Source Enthusiast - Mentor - Taco Lover - Make Minecraft Fast Plugin Developers: Annotation Command Framework - Discord: Code With Aikar, discord. Figured this could use a good bump ACF has came A LONG ways over the past few months, with MAJOR new features. Adjust xmx and xms accordingly for your RAM and leave some room for the operating system -- don't allocate 100% of the RAM to your Minecraft. 起動時の初期メモリ量を2GBに指定-Xms4Gとすれば4GBに指定できる-Xmx2G. if your doing fine and then all of a sudden you start lagging, flags MIGHT fix. AMP (Application Management Panel) is a simple to use, self-hosted web control panel for game servers that runs on both Windows and Linux systems with a focus on ease of use through its intuitive user interface and simple setup. XmS and XmX should always be the same for aikars flags to work. yellow flags. #13 Dexuby, May 22, 2023. Updating Paper is an important part of running every server. I am currently using a simple one but it worked out pretty well. The only way to improve the performance on a standard server implementation is to further worsen the gameplay experience by introducing more limitations or by improving your hardware. On this page. Also, is that the same map ? It seems to take lot of time to manage hoppers and beacon. In this video we'll showing you How to Use Aikar Flags on your Minecraft ServerWant a Minecraft server? Order one here: CODE "Y. This optimizes the garbage collector so it can use multiple threads for weak reference checking. 16. 6. Thanks for this, Aikar! 2 Likes. 아래의 내용을 -Xmx와 -jar 사이에 넣으면 된다. Depending on which Java parameters you use when starting Minecraft, will make a difference in your memory usage. Default flag Anhalt: ANH_absolute_monarchy. For a long time I used the flags of CPW but the shared knowledge was far behind and I bring you the updated flags for the latest Minecraft at the moment, according to my point of view. . yml with the file as. txt server. Genuinely, try it with 8-12gb. However, you will have issues if Java needs additional memory on top of that Xmx parameter set for bungeecord and you do not have the resources. Aikar's flags are a great way to optimize your Minecraft server's performance. Some explanations:-e TYPE=AIRPLANE: We’re going to use a very optimized fork of Paper which itself is an optimized fork of Spigot. Filename. The set of flags documented there can be added usingAikar's flags . sh to generate the necessary file. I am on Pebblehost and I just had to deal with this. Async Pathfinding and Multithreaded Entity Tracker from Petal. The idea seems to be perfect for a game server, which includes of course Minecraft. 18, which is no longer actively maintained. Back then we could not use JVM arguments. In addition to being numerous, these flags are sometimes poorly documented and create a need of benchmarking to ensure that the flags and their associated values deliver the best performance and stability for a particular program to execute. The container port within the docker network is still 25565 for main-hub. properties file. md 🚩 Aikar Flags En esta pequeña guía se explica en forma resumida las Aikar Flags, qué significan, qué beneficios pueden traer su uso a tu servidor y cómo aplicarlas si deseas hacerlo. Likely due to so much memory. Updating Paper. DockerTo put it simply, I'm asking if anybody knows how the Aikar's flags may be causing the ping issues and if there is any smaller part of the startup flags I could try and remove to fix the ping without causing the server to crash again. This is decided by three main factors: the number of players you have online, your server's view distance, and how spread out your players are. Why not Aikar flags? . The name attribute is freeform, not the actual username, so make it descriptive so that you know who it is! Users can change their names over time so use this to know who it is. Firstly you can check for Aikar flags that can help you. TaskChain - Powerful context control to dispatch tasks Async, then access the result sync for API usage. TaskChain - Powerful context control to dispatch tasks Async, then access the result sync for API usage. install ipv4 ipv6 java java 11 Java 16 Java 18 java 8 java vesion jvm larger plan launcher login mail minecraft minecraft server modpack mtr mulicraft networkIn my experience it was usually a bad idea to run minecraft server in docker. 2. -XX:G1NewSizePercent=40 -XX:G1MaxNewSizePercent=50 -XX:G1HeapRegionSize=16M -XX:G1ReservePercent=15 -XX:InitiatingHeapOccupancyPercent=20Search titles only; Posted by Member: Separate names with a comma. native-minecraft-server-279 1. ) How it WorksI assume you are using Pterodactyl, using Aikar Flags with the pretouch will kill the daemon almost instantly & crash the server. Hi guys, how are you? I hope it's ok. You can use the same set as 1. Many minecraft server creators find it difficult to find the flags that fit their server. PLUGINS Plugins lol 1. true. Added option to use Aikar's flags. Java versions in. The right flags will make a huge improvement to your 1. Aikar's flags are a set of JVM flags designed to improve the performance of your Paper server. Hello, thanks for reply. Creator of Timings - Open Source Enthusiast - Mentor - Taco Lover - Make Minecraft Fast Plugin Developers: Annotation Command Framework - Discord: Code With Aikar, discord. gt to discuss. 3 Blocks in between when on Diagonal. Newest Java versions using other GC method that needs more room to work (similar issue was happening with Aikar's flags because they using G1GC). Nothing but _version is set in paper-world. Join our passionate team in building the world’s most advanced electrical vehicle technology platforms unlike anything seen in the industry. gg/papermc Server Owners: Proven Optimized Server. ). Finally, I suggest you to check docker limitation, specially in read/write IO – Elikill58. Banners were a great addition to Minecraft that extends the ability for the player to customize and choose a proper decoration for their builds. we are currently running AMP 2. I know that is the recommended flags from the spigot team but honestly I don't see the benefit of using them all. This is the main flag I researched and considered the best to add. The best way to tweak the garbage collector to our needs is using flags. However, we still have tps drops as more than ~5 players are on. Install the build dependencies via yarn. This is used quite extensively in Spring/Spring Boot (a little bit of reference here), though Spring goes quite. Bu videomuzda 0'dan Minecraft Serveri Nasıl Oluşturulur ? Java Ayarlar. Issue persists; no changes. Look into using aikar flags for your server. Display results as threadsFor example, if you wanted to disable spawn. Container definition version: "3" services: mc1: image: itzg/minecraft-server:. What is Aikar's Flags . we are currently running AMP 2. Located in the same directory as your configuration files. Are you having old gen issues with these flags? Add the following flags based on your java versionto enable GC Logging: Java 8-10 Java 11+. The G1 garbage collector offers a great stability with decent performance, but may be slow in certain situations. Đăng ký ngay Medium 6. ClearLag >> Plugins that claim to remove lag actually cause more lag. What number would you suggest in load-threads? Both for SB and survival?The flag Xmx specifies the maximum memory allocation pool for a Java Virtual Machine (JVM), while Xms is the initial memory allocation pool. txt and change eula=false to eula=true. Flags. On this page. Run the Run. Super Fast Hajime is always blazing-fast no matter what platform you use it on. Use these flags exactly, only changing Xmx and Xms. Hello All - I am trying to see if there is a way to host some of the newer mod packs like All The Mods 7 using AMP. Updating The Server Updating Paper is simple! See our Update Tutorial for more information. sh. I've been racking my brain trying to get the best performance out of the java machine without getting great results until finally I made it. Aikar's flags are a set of JVM flags designed to improve the performance of your Paper server. 9. Meaning unless your running 3GB+ on Bungee, you MUST use this flag with G1GC. 25/GB Intel Core I9-9900K/AMD. Minecraft Java Performance Flags. I am currently using a simple one but it worked out pretty well. if anyone could help it would be amazing <3 [Pterodactyl Daemon] Server marked as STARTING [Pterodactyl Daemon] Checking size of server data directory. Además, una gran cantidad de entidades de objetos pueden causar problemas de rendimiento en el cliente. Which means to avoid old CPUs. Includes many configuration options such as Aikar's flags, automatic restarting, and Pterodactyl overhead calculation. 9. Last updated on Oct 10, 2023 by Potothingi. A fatal exception has occurred. More of a standard that most servers use. flags, focusing on a subset of specialized flags carefully selected [3, 4, 11, 14, 15], thus avoid the need of modeling the dependencies and incompatibilities between flags. Running ubuntu server 22. The file used to launch the server. That's really cool information thanks. Pregenerate the world. Newer Than: Search this thread only; Search this forum only. I do have a question though: Are all messages defined in the source code? What I like about my own bad command thingy is the following: You select a language; All command keywords and messages change to respect that. They also support new java versions (13 with Aikar's flags, 14 with ZGC). thats wrong, (for the aikar flags part), xmx and xms does not have to be the same, and doesnt improve or reduce performance. For stable operation of "Paper" servers (and other Minecraft servers) it is recommended to use Aikar's flags: for example, this is the startup code that we use before switching to the LinuxGSM solution:AMP or Application Management Panel is a game server management panel. Then I recommend you to use flags. purple flags. This thread is archived. The external port is external. You can use the same set as 1. PaperMC Paper is a fork of. I wasn't using any flags. 2) introduces a brand new mechanic that allows you to place your banner horizontally to make it feels like a flag. yml. Hi guys, how are you? I hope it's ok. 15 Catalina. CMS and default may suffer the same issue. Aikar's Timings Viewer We just expierenced various form of lag and therefore i took a new timings in just a few small minutes interval. cd70cbc. there should be an option in multicraft called "startup parameters" but some hostings dont allow you to edit them, you should open a ticket if thats your case. flags. Meaning unless your running 3GB+ on Bungee, you MUST use this flag with G1GC. Aikar's flags work well. Your server is still using the full 10GB of memory you allocated. ZGC might become a good alternative, but it still has a long way to go until it clearly outperforms G1GC for MC. Hello, I ran into a problem of trying to do maximum optimisation. I've given it 10GB of ram, used aikar's recommended java flags. You can also issue the command /timings reset to make the Timings Report start a brand new report. Spun up a new Paper instance with Aikar's flags on a different port with no plugins at all. Solution: Remove the plugin, or change your server's version. It helped big servers at that time and it still helps them nowadays, but Java evolved. 🔨 Building. This is for a large part true. Use these flags exactly, only changing Xmx. In contrast, 1. For JVM flags, I'd suggest EITHER just the Xmx value (with Xms set to the same value), or use the 'Aikar flags) (Aikar is one of the prime guys on PaperMC, and has done loads of research on the 'best' flags for Minecraft servers) - see. And then, my last and relevant point here, as we both have a Gentoo system. etil2jz / etil-minecraft-flags Public archive. I was using aikar's not sure if they are still the best if someone could let me know. The /r/feedthebeast subreddit is not affiliated or associated with the Feed. This thread is archived New comments cannot be posted and votes cannot be cast comments sorted by Best Top New Controversial Q&A scotch1701 • Additional comment actions. sh source code in your terminal. 0. Features. Before that I was using docker compose for servers exposing port to the machine network and start bungee manually without docker, and everything works. Indeed, why change something that works? Well. Newer Than: Search this thread only; Search this forum only. More players, larger heaps, which means more short lived objects and longer GC scans. REALLY useful for getting the most out of your RAM on a MC server - whether you are memory light OR memory heavy (too much heap with the wrong/default flags can actually be a problem, due to very long garbage collector runs). 17 since the new gc is mainly focused for multithread performance and mjnecraft is still mostly single thread. It is our general recommendation to have at least 4 cores on 1. I'm using Pterodactyl and I allocated about 6GB. This means that your JVM will be started with 6Gb of memory and will be able to use a maximum of 6Gb of memory. Annotation Command Framework - Discord: Code With Aikar, discord. I tried everything other than this. CPU may be slightly higher, but your server will be overall more reliable and stable TPS. 가비지 컬렉션중 가장 유명한 컬렉션은 Aikar Flags이다. I suspect a minigame server could use a smaller heap due to fewer chunks being loaded. 4. Startup aikar flags: At first I had the startup ram to 12gb, but that itself was a bad idea, as it ate all my 24gb of ram. It was particularly evident when loading worlds and saving worlds. After preloading your world/chunks you should set a world border to preloaded world size. . IDB - Simple and Intuitive JDBC Wrapper for Java Hello! So, I recently got a VDS and have set up my forge server to run Aikar's Flags as the JVM arguments. Ton4icx. The text was updated successfully, but these errors were encountered: All reactions. Restart the server: service minecraft. #12 Leonardo_, Nov 4, 2021. It actually runs better with 3 GB than with 4 GB. . Why not Aikar flags? . You can even create a script for it (just adding the line "java (put aikar's flags here, customizing ram amount) -jar server. Automatic tuning of GC parameters. Chapter 2: Iran Post Islamic Historical Flags and Emblems. If u haven't preloaded your world, you should do that. 0. 4. start. If these flags help your server, consider donating! The JVM Startup Flags to use – MC 1. The tick timeout has been changed to -1 to disable the watchdog for use with the AUTOPAUSE feature of the docker image. The way the server files are put together is a little confusing and doesn’t look like they can be taken apart from their structure. js are installed. These flags are made by Aikar and you can find the explanation for the flags here. @Aikar has put a lot of time and effort into researching and testing different garbage collection setups, and recommends the following flags:Actually, Commodore is not really popular but CommandAPI is way more popular and is using Brigadier as well to do what they do (there is also AnnotationCommandFramework (ACF) from Aikar, I think). The more chunks your server has loaded at any one time, the more memory your server is going to need. jar. Brilliant thanks Aikar! Ive been pondering what I should do with Waterfall flags for a while! For everyone else that doesn't have Discord or doesn't know how to find the waterfall discord/channel and search through Pins, Optimized Waterfall flags are: java -Xms512M -Xmx512M -XX:+UseG1GC -XX:G1HeapRegionSize=4M . Aikar's Flags; Configuring Anti-Xray; Reference. the wiki is constantly updated, so that's enough take a little time to read, and everything will be clarified, in. According to the Paper devs, you should still use aikars flags for 1. Yes you can slightly increase it with barely noticeable changes but that won't do a whole lot. The bot on average can only play around 2-5 songs before the music cuts out. Add the following flags based on your java version to enable GC Logging:</p> <p dir="auto"><strong>Java 8-10</strong></p> <div class="highlight highlight-source. These flags are constantly updated, and can be found here. A pennant of the standard of the heir imperial son. The Airplane team has developed a nice little command generator that you might wanna check out: Airkar Flags Java Command Generator. -XX:MaxGCPauseMillis=200. Also, -Xms32G -Xmx48G is awful, these values should match so the heap isn't being resized at runtime and your heap is just too fucking large, with 12 players online max ~12-20G is what you would assign with a huge and resource intensive modpack, for a Paper server something like -Xms8G . Warning: Paper is an unofficial fork and is not supported on Spigot forums. . Other projects by Aikar / Empire Minecraft. Aikar's flags don't work. メモリの最大使用量を2GBに指定; Minecraft Wiki によると，-Xmsと同じ値にすることを推奨し. These are similar to the aikar flags, but with shorter, more frequent pauses, less aggressive G1 mixed collection and more aggressive background collection: -XX:+UseG1GC -XX:MaxGCPauseMillis=37 -XX:+PerfDisableSharedMem -XX:G1HeapRegionSize=16M -XX:G1NewSizePercent=23 -XX:G1ReservePercent=20 -XX:SurvivorRatio=32 -XX:G1MixedGCCountTarget=3 -XX. properties to turn the server onto online mode. Enables the server's GUI control panel. Be sure to give it the proper jar file at the end of the flags, right before nogui. There were no Problems, except this pack is using a huge amount of RAM. Using Aikar's Flags, an optimimised set of flags for running Minecraft, you can potentially increase your performance. Startup command below, of course. Aikar flags are not a requirement, they're just an optimization, so just because you don't use them doesn't neccesarily mean you will encounter issues. jar Here is. Automatically restarts the server after it crashes or is stopped. I know that when it was happening, the server consistently had. Enable Aikar's Flags¶ Aikar has done some research into finding the optimal JVM flags for GC tuning, which becomes more important as more users are connected concurrently. I'll have to play around with it once I get the server running. Sadly the log file is not of any help to me, I cant figure. I tryied the Aikar Flags but server does't fully start, it stays in the starting phase with the yellow dot and the CPU at 2/3%. . With new features and fixes coming every day, we recommend updating at least once per week to keep your server. Try connect to it on Localhost:25565. Using Aikar Flags is relatively simple and only requires a few adjustments depending on what brand of server is in use and how much memory (RAM) is allocated. 에서 빠르게 JVM 인수들이 달린 명령을 생성 할 수 있다. For a long time I used the flags of CPW but the shared knowledge was far behind and I bring you the updated flags for the latest Minecraft at the moment,. jar. I've gone through and optimized some of the bukkit/spigot/paper yml settings. The ONLY gc-root reference in the heapdump to all of the leaked CraftWorlds and CraftPlayer is the entry in WeakHashMap, key being CraftPlayer. 3, 1.