ok btw i have added aikar flag and here is my new memory, btw my tick durations at /spark tps is 100-300 and its red is this any problem and do u have idea how to fix this #15 Ton4ic, Apr 24, 2023 + Quote Reply. The container port within the docker network is still 25565 for main-hub. entity-activation-range. either way you can always use google's page cache. These flags are designed to change certain settings on the JVM that can improve the performance of the game. . So here's what your config. I want to reduce their spawn rates. CPU may be slightly higher, but your server will be overall more reliable and stable TPS. CMS and default may suffer the same issue. 1. gg/papermc Server Owners: Proven Optimized Server Startup Flags FEATURES : Standalone / Proxies Jar Auto Download ServerJar Customizable Jar Name Customizable Ram Toggleable Aikar Flags Toggleable Advanced Aikar Flags for 12Gb + ram AutoRestart Toggle Adjustable Timeouts for restart Gui Toggle for Consoles Adjuatable Java Home Auto Create EULA Customizable Title of console Advance / Custom flags Support. Join our passionate team in building the world’s most advanced electrical vehicle technology platforms unlike anything seen in the industry. If your PC has 8gb total ram--- DO NOT allocate over 4. I've gone through and optimized some of the bukkit/spigot/paper yml settings. matthewpi closed this as completed on Jun 26, 2021. Generally, Aikar flags are still considered best practice. Generally, Aikar flags are still considered best practice. itzg added a commit that referenced this issue on Apr 11, 2020. The current flags are -server -Xms4G -Xmx7G -XX:+UseG1GC -XX:+UnlockExperimentalVMOptions -XX:MaxGCPauseMillis=100 -XX:+DisableExplicitGC -XX:. These flags work and scale accordingly to any size of memory, even 500MB but 1. the point of them is to improve and provide consistent performance and be able to tolerate changes in load. sh or . Hello, do Aikar's flags supposed to work on windows? Because for me no :/. The server is really lightweight and it usually shouldn't use too much memory. This is not happening because of newest version of Minecraft. Server is Fabric 1. ClearLag >> Plugins that claim to remove lag actually cause more lag. AMP is the control panel for getting things done Simple installation, fully integrated application, massive game library support. bleagh said: ↑. For some reason it is not starting the server. It's been almost a month since the last post, however, I'd like to report that I'm also getting poor chunk management with Aikar's flags too. Most of my focus is in Minecraft for the most recent years. If you have a Game or Minecraft server with us. The good news is that Aikar's flags is already supported with -e USE_AIKAR_FLAGS=true;Make sure to use paper and aikar flags and you won’t hit any problems with your farms. 5. sh. The external port is external. flags. Locked post. Introduction After many weeks of studying the JVM, Flags, and testing various combinations, I came up with a highly tuned set of Garbage Collection flags for. Aikar flags seen here Aikar's Flags | PaperMC Documentation. Genuinely, try it with 8-12gb. Enables the server's GUI control panel. You're saying that without evidence. Added option to use Aikar's flags. Closed ColorfulGhost opened this issue Dec 30, 2021 · 1 comment Closed. Just a quick note when using the -o flag on a startup script (if you do) don't use it with servers you intend on using with BungeeCord, because the -o flag overwrites the server. Aikar studied the JVM flags for several weeks before ending with these. I know that is the recommended flags from the spigot team but honestly I don't see the benefit of using them all. 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. I've used it personally on my test server without issues, granted it's not under strain but it's been no different. In some cases people have reported getting 2000%-3000% better frame rates from this one change alone. After every game, map is being overwritten by template world generated with MissileWars plugin (and editted by ourselves). txt and change eula=false to eula=true. They all give me the same result, the memory usage just goes up indefinitely until the server crashes. Creator of Timings - Open Source Enthusiast - Mentor - Taco Lover - Make Minecraft Fast Plugin Developers: Annotation Command Framework - Discord: Code With Aikar, discord. com • 2 yr. Notifications Fork 7; Star 197. 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. Follow (if applicable) this settings guide for Paper. Command prompt is titled with your server name - useful if you are running multiple servers on your machine. Miscellaneous. What flags 1. yellow flags. A single Pi optimization though. Aikar's Flags Pretty much everyone knows about these. Back then we could not use JVM arguments. </p> <h2 tabindex="-1" dir="auto"><a id="user-content-correct-flags. It's ModelEngine, it causes most of the lag on your server. It supports Minecraft 1. @DaneEveritt So when i got 1024,i should change it to 524?Join #aikar on Spigot IRC - irc. Diễn đàn. bat This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. Flags. Contributing. (For example the Aikar garbage collector flags options) processParameters Here you can set custom process parameters. #はじめに本記事ではマインクラフトのサーバをコンテナで構築します。仮想マシンを作ってJDKをインストールしてjarファイルを実行して・・・というやり方が多いと思います。このやり方も問題ないです…please add additional Flags to the minecraft server launch setting code. Aikar's Flags Optimize your server with Aikar's Flags right out of the box. openj9 has a different collector, which might be more ideal Aikars flags have some flaws. Open your terminal, navigate to the saved location, and then run. It actually runs better with 3 GB than with 4 GB. I have used the fill task on this exact server multiple times, but in 1. I'm using one of the latest versions of Paper and running Aikar's JVM flags. It seems files were still being written after server shut down, and I rebooted the hardware too quickly. Copying Flags to another player You can also copy all the Flags from one player, and apply them to another. 아래의 내용을 -Xmx와 -jar 사이에 넣으면 된다. Hi, it is good to use spark along with timings because as said in the spigot plugin page. Large view distances are the primary cause of servers running out of memory. Why not Aikar flags? . -XX:MaxGCPauseMillis=200. Creator of Timings - Open Source Enthusiast - Mentor - Taco Lover - Make Minecraft Fast Plugin Developers: Annotation Command Framework - Discord: Code With Aikar, discord. " Incorrect. While these tweaks notably reduce some server and client stutters, expect only modest TPS gains + minimal FPS gains at best, and somewhat. More of a standard that most servers use. A fatal exception has occurred. Creator of Timings - Open Source Enthusiast - Mentor - Taco Lover - Make Minecraft Fast Plugin Developers: Annotation Command Framework - Discord: Code With Aikar, discord. Describe the problem The USE_LARGE_PAGES environment option is not working when using the 1. Creating the custom pack might well mean you're missing the recipes and stuff included in the built-in packs. Flags let you easily define restrictions and other validations quick and easy. For now, I just have it on a one-minute delay with the OnBootSec= timer, but I’d like a slightly less hacky solution if possibl…Anyone know how to make a Systemd boot file with aikar flags in a screen? Been looking at it since morning, it's been at least 6-7 hours now, I've tried a few different scripts to no avail. I was able to perform well with. log -verbose:gc -XX:+PrintGCDetails -XX:+PrintGCDateStamps -XX:+Pr. There is no information on this github and i was a little confuse about how. Ton4icx. 15. As such they’re are recommended for newer versions of the game, modded servers, and public servers. If someone is looking for how to do it, it's just. Hi, I've recently set up a dedicated server for Minecraft with Pterodactyl. Minecraft server can't allocate full { {SERVER_MEMORY}} amount in XMX #3726. Setting the priority of. Player joins - going up 1200 MB +, joins one or two more. The idea seems to be perfect for a game server, which includes of course Minecraft. Code (Text): java. 18 paper spigot. I changed both Xms and Xmx to 10G, because the flags recommend matching them. 📄️ Configuring Anti-Xray Paper ships an obfuscation-based Anti-Xray system by. Startup flags might help, but without hard evidence I cannot say for sure. 만약 메모리 할당량 12GB 이상으로 하실 분은 아래를 Aikar Flags를 보고 수정하셔야 합니다. 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 . This helps as long pauses for garbage collection. Going 6gb average is not unheard of. Aikar notes against using too much RAM : Don't use all of your memory! When setting the Xms and Xmx values, if your host says you have 8000M memory, do not use 8000M! Minecraft (and Java) needs additional memory on top of that Xmx parameter. Reply replyA basic bat startup script with aikar's flag for starting M,necraft servers Raw. World was pre-gened 5,000 square and players are just building bases and not exploring. ago. spawn: keep-spawn-loaded: false. There are bits that you can squeeze from complicated flags, but you would get much more from modified server software. In this guide, we'll show you how to eliminate the. Indeed, why change something that works? Well. Copy link. . 13. Keep in mind that mob farms do not work as efficient on smp compared to single player tho. 2. Hello, i'm totally new to this panel. 2) introduces a brand new mechanic that allows you to place your banner horizontally to make it feels like a flag. See Pics. Find the timings section, and make sure the enabled and verbose setting are set to true . 4. cyan flags. Error: Unrecognized VM option '' Could not create the Java Virtual Machine. properties to turn the server onto online mode. bat. 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. I entered the server, played for a while - ram usage grew, grew, grew, by 70mb totally. In this article, we will discuss what Aikar's flags are, how they work, and how you can apply them to your server. There's a way you can make a leak with a WeakHashMap: the stale "expired" entries won't be deleted if you. Run the run. This is the main flag I researched and considered the best to add. 10 GBit/s Uplink ~ NVMe Storage ~ Advanced DDoS Protection ~ Daily Backups ~ Dedicated Resources ~ Public Node Stats. ^ Oracle GC tuning guide explaining the behavior, use cases, suggesting flags for tuning, etc. Inspired by startmc. In this video we'll showing you How to Use Aikar Flags on your Minecraft Server Want a Minecraft server? Order one here: are my startup flags, the current issue is the memory rises rapidly to about 50-60% usage and then resets back to 500MB, is this normal behaviour and are. 350,000 VNĐ 1 tháng . Most of the garbage collection parameters are already available under Advanced > Startup Parameters on the control panel (it looks like just one of the parameters you requested isn't available - the. 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. My server runs fine with 10 or so players with only 3 GB allocated to the heap. How-to Guides. 0. 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. Automatically disabled in environments without a desktop. 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. Thanks for this, Aikar! 2 Likes. This article will show you how to apply Aikar's flags. Pastebin is a website where you can store text online for a set period of time. I'm using Pterodactyl and I allocated about 6GB. Right now, use Java 18 as it comes with G1GC improvements over 17. Port forward to 25565. 3, 1. sh. Spark - Allows you to analyse your servers CPU and memory usage. 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. In your server console, type /whitelist add username where username is your MC username. Solution: Remove the plugin, or change your server's version. -XX:G1NewSizePercent=40 -XX:G1MaxNewSizePercent=50 -XX:G1HeapRegionSize=16M -XX:G1ReservePercent=15 -XX:InitiatingHeapOccupancyPercent=20 ♻ ¿Qué son las Aikar Flags? Son un conjunto de flags investigadas por Aikar (un developer conocido detrás de otros projectos como Paper) que, según una gran cantidad de testeos, ayudan a mejorar la estabilidad del servidor. They are flags to be used when starting your server. Chunky - Pre-generates chunks for better performance on survival servers. 0 Many users who gave low ratings due to some bugs in the plugin, didn't even try to report it, or talk to the dev, every time I reported a problem, everything was quickly resolved. Development. Enter the directory containing the flags. I had the same question a while ago and asked a couple smart people over at the Paper, Tuinity & Airplane discords, so yeah if you're using the G1 garbage collector (which you should, because apparently it's better suited than ZGC for long uptime) Aikar flags are still the way to go. 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. I am currently running a server with 300+ players online, and during special events, they can be 100 to 150 at the same area (it's a KotH). In this video we'll showing you How to Use Aikar Flags on your Minecraft ServerWant a Minecraft server? Order one here: CODE "Y. A simple explanationwhy more ram is not good when not needed: Despite all flags, more ram means java needs more time to inspect the ram contents for things it no longer needs and it also takes more time to defragmentate. Container definition version: "3" services: mc1: image: itzg/minecraft-server:. Meaning unless your running 3GB+ on Bungee, you MUST use this flag with G1GC. The updated aikar flags also helped a lot. GUI. Or Code With Aikar Discord. Search titles only; Posted by Member: Separate names with a comma. In order to override the default for an option, you must. -XX:+ParallelRefProcEnabled. The G1 garbage collector offers a great stability with decent performance, but may be slow in certain situations. 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). The set of flags documented there can be added using Aikar's flags . ACF plans to implement Brigadier for 1. Creator of Timings - Open Source Enthusiast - Mentor - Taco Lover - Make Minecraft Fast Plugin Developers: Annotation Command Framework - Discord: Code With Aikar, discord. sh, built with Blitz. New comments cannot be posted. 2. I've been using Aikar's flags with 1. ( CraftPlayer and CraftWorld cross reference each other before being normally GCd). Its popular and effective at boosting performance over java defaults. We lost 2 player's playerdata. 에서 빠르게 JVM 인수들이 달린 명령을 생성 할 수 있다. But before reading this documentation I was using the flags recommended by Aikar for bungee. startPort This is the port from which the cloud will use ports for the services. flags. Do cat /proc/cpuinfo and see what is the highest SSE your cpu supports (shows up under flags). This tells the JVM to delay the max garbage collection time of 200 milliseconds. Pinned PaperMC/Paper Public The most widely used, high performance Minecraft server that aims to fix gameplay and. Search titles only; Posted by Member: Separate names with a comma. Issue persists; no change. 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. This means that your JVM will be started with 6Gb of memory and will be able to use a maximum of 6Gb of memory. C'est très simple. Memory. What is the latest systemd target? My rpi’s network seems to start up after multi-user. 5GB at any given time. My question is, in my timings report, using Aikar’s startup flags, there is a red number in G1 Young. [Pterodactyl Daemon] Disk Usage: 2533M / 10240M [Pterodactyl Daemon] Ensuring correct. That's really cool information thanks. orange flags. These flags will reduce your server's. (I did not downvote)QuMine - Server - Java Status Usage Quick Start Accessing the server console Configuration eula. 16. 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 you are running with 10GB or less memory for MC, you should not adjust these parameters. Archived post. Describe the problem It looks like the memory variable is not being respected while using USE_AIKAR_FLAGS: "true". This is the file you double-click to start your Minecraft server. -XX:UseSSE=4. Finally, I suggest you to check docker limitation, specially in read/write IO – Elikill58. etil2jz / etil-minecraft-flags Public archive. Chapter 2: Iran Post Islamic Historical Flags and Emblems. My Minecraft JVM Flags Guide Check out pinned repo's for some of my most recent work. Single thread performance is measured in MOps/Sec. Be sure to give it the proper jar file at the end of the flags, right before nogui. (I use 10GB myself - pauses are 100ms or less) Has anyone else noticed that using Aikar's recommended startup arguments seems to worsen the server performance? I have been trying to run the world fill task and it would only last about 10min before crashing. Wait for about 30s for it to run the cmd and it will tell you to exit. Includes many configuration options such as Aikar's flags, automatic restarting, and Pterodactyl overhead calculation. Son garbage collector est basé sur l'algorithme G1. Opinion on start-up Aikar Flags for server optimisation? Does it actually improve server performance allocating RAM to different things or is it total BS. gt to discuss. zip from curseforge inside it is a directory [Better Minecraft Server Pack [FABRIC] v8] which has the directories and files actually needed inside of it. This is used quite extensively in Spring/Spring Boot (a little bit of reference here), though Spring goes quite. itzg closed this as completed on Apr 11, 2020. 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. Apr 14, 2022 at 11:08Hello, I am leading a Gaming Network and we decided to create a Modded Mc Server with your Modpack, All of Fabric 3. Newer Than: Search this thread only; Search this forum only. 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 remember seeing somewhere say they were outdated but have been unable to find it again. Issue persists for me; no change. 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 what I'm using currently (got this from one of my old 1. Located in the same directory as your configuration files. 가비지 컬렉션중 가장 유명한 컬렉션은 Aikar Flags이다. 2. yml with the file as. Read that Aikar's guide, it tells you specifically how to set up your JVM arguments to work with RAM over 10GB. The /r/feedthebeast subreddit is not affiliated or associated with the Feed. Chapter 4: Pahlavi Imperial. I have 6gb ram on a server, leaving 1gb for os and everything, and dedicating 5gb to the minecraft. The file used to launch the server. 17 since the new gc is mainly focused for multithread performance and mjnecraft is still mostly single thread. 2 + the aikar flags is hosted on OVH (Dedicated GAME- 2) from 128Gb of ram + r7 2800x (If I'm not mistaken) the cpu almost never exceeds 20% and is stable but. Wait 10-15 minutes while the server is experiencing the lag. Hello, I ran into a problem of trying to do maximum optimisation. His garbage collection is based on the G1 algorithm. jar. The problem with your server: ONE PROBLEM: Your server's garbage collection task is taking quite a bit of time - your server is currently stuttering (stopping completely actually) briefly every 15 seconds. Press CTRL + C to exit the script. I resorted to this variable since depending on the modpack your scripts are sometimes not able to properly set the variabl. . That's half your problem. Thanks for being a part of r/Admincraft ! We'd love it if you also joined us on Discord! Join thousands of other Minecraft administrators for real-time discussion of all things related to running a quality server. 18, which is no longer actively maintained. This thread is archived. I am currently using the Aikar's recommended flags (with G1GC), which require some ~6GB ram allocated to each and every server to maintain smoothness, even if the server only has like 5 players on it. The default value is 70. Has anyone else noticed that using Aikar's recommended startup arguments seems to worsen the server performance? I have been trying to run the world fill task and it would only last about 10min before crashing. Wait for server to start up fully. When using paper and aikars flags you can already do /timings report and see how your server performs. Hello, I run different Fabric modpack, but this might be your issue too perhaps. Setting 3 Flags for 1 player at once: /res pset Aikar use,container,redstone true. These flags are designed to change certain settings on the JVM that can improve the performance of the game. Before that I was using docker compose for servers exposing port to the machine network and start bungee manually without docker, and everything works. jar. 2020–present. 1. 17 server, which is why we wrote an entire article on it! Garbage Collection can cause lag spikes right in the middle of PVP, or mining, or events that cause the entire server to freeze while the garbage is cleaned up. It's pretty useless to know about all these, the most important ones are -Xmx {number}G and -Xms {number}G. I think CPU Class matters. Using Aikar's Flags, an optimimised set of flags for running Minecraft, you can potentially increase your performance. itzg referenced this issue on Apr 11, 2020. 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 . No because as cat mentioned, zgc is not recommended for most people and even those it can work for, jury is still out on is it worth it. Separate configuration portion of the file to make it easier for you to configure. So then there is Aikar's flags which. The text was updated successfully, but these errors were encountered: All reactions. Orange - The amount of CPU your server is using. 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. Aikar studied the JVM flags for several weeks before ending with these. Aikars flags are the most stable, the most thoroughly tested and the most recommended Java. Most of my focus is in Minecraft for the most recent years. I had the same question a while ago and asked a couple smart people over at the Paper, Tuinity & Airplane discords, so yeah if you're using the G1 garbage collector (which you should, because apparently it's better suited than ZGC for long uptime) Aikar flags are still the way to go. Other projects by Aikar / Empire Minecraft. The only real symptom of too much ram is just really bad lag spikes, as Java has to do more. That the server will work with these flags and not crash on startup. js and Mantine UI. 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. The Server is running in a docker container useing the base configuration. Many minecraft server creators find it difficult to find the flags that fit their server. That the server will work with these flags and not crash on startup. HexedHero. . :/Aikar Flags - Java startup flags, the best to run a minecraft server. The server runs Java 11. The only 'special' flags I use are: -XX:MaxGCPauseMillis=100 and -XX:+UseG1GC Actually, unused memory is wasted. The flags are organized by Java version and vendor showing information about each flag including the file it is defined in. entity-activation-range. I'm not as smart as some, but here is a basic explanation: Java's memory management is awful, and with that much ram allocated, it will be spending most of its time trying to manage that memory. 📄️ Aikar's Flags. Flags Im using: -Xms5G -Xmx5G -XX:+UseG1GC -XX:+ParallelRefProcEnabled -XX:MaxGCPauseMillis=200 -XX:+UnlockExperimentalVMOptions It turns out my host includes the other Aikar's flags, so removing some of the flags made the server start again. Administration. Display results as threadsこれを実行すればいいわけです．ここでコマンドの引数の詳細はAikar's FlagsやMinecraft Wiki より，-Xms2G. Imperial standard of the. Or Code With Aikar Discord. Further, more ram means java sees there is so much more free ram, I can wait longer until i check ram for garbage. Located in the same directory as your configuration files. Figured this could use a good bump ACF has came A LONG ways over the past few months, with MAJOR new features. 20). 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. 8. Applying The Flags - Game Servers. Aikar's flags are the gold standard, keep using them. 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. Many in the developer community here should know me for my work on Paper (and previously Spigot), working to improve the server performance. So you have two choices: java -Xms3G -Xmx3G -XX:+UseG1GC -XX:+ParallelRefProcEnabled -XX:MaxGCPauseMillis=200 -XX:+UnlockExperimentalVMOptions -XX:+DisableExplicitGC -XX:+AlwaysPreTouch . Keep in mind that mob farms do not work as efficient on smp compared to single player tho. 🔨 Building. For up-to-date documentation, see the latest version (1. Recommended: 20. Here you can set custom jvm options. This is documentation for Paper 1. The file used to launch the server. On this page. As you can see it's just aikar's flags, with minimal necessary changes (xms value, xmx value, -jar name). -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. One of the common questions when starting a server is “What flags should I be using to launch my Minecraft server?” There’s a lot of incorrect information spread about what flags make your Minecraft. ago. The Airplane team has developed a nice little command generator that you might wanna check out: Airkar Flags Java Command Generator. How-to Guides. Very strange, CPU class is one story but raw processing power of 3600 is bigger. Bat file again. if your doing fine and then all of a sudden you start lagging, flags MIGHT fix. 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. 9.