Paper VS Pufferfish

We will be downloading the Minecraft server files into this directory. To preface, there are numerous variations of server JARs that can be used (e.g. Spigot, Paper, Purpur each touting their own benefits). For this tutorial, we will be working with Paper, a fork of Spigot that is optimized for performance.

PaperMC, a minecraft server has over a quarter million lines of code Github link

Paper fixed it here: https://github.com/PaperMC/Paper/commit/8493340be4fa69fa9369719272e5dff1b7a2f455

G:\DedicatedServers\test>java -Xms10G -Xmx10G -XX:+UseG1GC -XX:+ParallelRefProcEnabled -XX:MaxGCPauseMillis=200 -XX:+UnlockExperimentalVMOptions -XX:+DisableExplicitGC -XX:+AlwaysPreTouch -XX:G1NewSizePercent=30 -XX:G1MaxNewSizePercent=40 -XX:G1HeapRegionSize=8M -XX:G1ReservePercent=20 -XX:G1HeapWastePercent=5 -XX:G1MixedGCCountTarget=4 -XX:InitiatingHeapOccupancyPercent=15 -XX:G1MixedGCLiveThresholdPercent=90 -XX:G1RSetUpdatingPauseTimePercent=5 -XX:SurvivorRatio=32 -XX:+PerfDisableSharedMem -XX:MaxTenuringThreshold=1 -Dusing.aikars.flags=https://mcflags.emc.gs -Daikars.new.flags=true -jar paper-1.20.2-291.jar --nogui Starting org.bukkit.craftbukkit.Main System Info: Java 17 (OpenJDK 64-Bit Server VM 17.0.2+8-86) Host: Windows 10 10.0 (amd64) Loading libraries, please wait... [13:37:15 INFO]: Environment: Environment[accountsHost=https://api.mojang.com, sessionHost=https://sessionserver.mojang.com, servicesHost=https://api.minecraftservices.com, name=PROD] [13:37:15 INFO]: Found new data pack file/bukkit, loading it automatically [13:37:16 INFO]: Loaded 7 recipes [13:37:16 INFO]: Starting minecraft server version 1.20.2 [13:37:16 INFO]: Loading properties [13:37:16 INFO]: This server is running Paper version git-Paper-291 (MC: 1.20.2) (Implementing API version 1.20.2-R0.1-SNAPSHOT) (Git: ce7f068) [13:37:17 INFO]: Using 4 threads for Netty based IO [13:37:17 INFO]: Server Ping Player Sample Count: 12 [13:37:17 INFO]: [ChunkTaskScheduler] Chunk system is using 1 I/O threads, 6 worker threads, and gen parallelism of 6 threads [13:37:17 WARN]: [!] The timings profiler has been enabled but has been scheduled for removal from Paper in the future. We recommend installing the spark profiler as a replacement: https://spark.lucko.me/ For more information please visit: https://github.com/PaperMC/Paper/issues/8948 [13:37:18 INFO]: Default game type: SURVIVAL [13:37:18 INFO]: Generating keypair [13:37:18 INFO]: Starting Minecraft server on *:25555 [13:37:18 INFO]: Using default channel type [13:37:18 INFO]: Paper: Using Java compression from Velocity. [13:37:18 INFO]: Paper: Using Java cipher from Velocity. [13:37:18 INFO]: Preparing level "world" [13:37:22 INFO]: Preparing start region for dimension minecraft:overworld [13:37:22 INFO]: Time elapsed: 52 ms [13:37:22 INFO]: Preparing start region for dimension minecraft:the_nether [13:37:22 INFO]: Time elapsed: 29 ms [13:37:22 INFO]: Preparing start region for dimension minecraft:the_end [13:37:22 INFO]: Time elapsed: 28 ms [13:37:22 INFO]: Running delayed init tasks [13:37:22 INFO]: Done (6.045s)! For help, type "help" [13:37:22 INFO]: Timings Reset

For more information please visit: https://github.com/PaperMC/Paper/issues/8948

Go to papermc.io and download Waterfall or Velocity

This is actually a known issue which was mostly ignored: https://github.com/PaperMC/Paper/issues/3110

https://www.reddit.com/r/admincraft/comments/ra327s/soo_is_this_pufferfish_server_jar_worth_it/ https://github.com/pufferfish-gg/Pufferfish

Well, if you can't find another datapack and don't want to go the way of creating custom arrows, you can try to optimize your server as much as possible. Instead of PaperMC, use Pufferfish, install Temurin JDK 17 and run your server with startup flags from hilltty, based on the Shenandoah garbage collector. Also, following this guide, optimize the values in the configuration files (like paper.yml).

- They upstream all of pufferfishes optimizations, which include async mob spawning, 30% faster hoppers, and much more. That also includes all of airplane's optimizations. ^ this is really good, check https://github.com/pufferfish-gg/Pufferfish for reference & list of the optimizations.. - Villager brain ticks & lobotomization - use-alternate-keepalive, but it helps a lot with players who have bad internet connections from disconnecting. + TPS bar isn't a performance improvement, but it's a really good feature. + Especially for survival servers, the truckload of additional options and configurations for gameplay that are disabled by default, and can be enabled at your discretion.

Also, consider using one of the Paper forks that includes further performance improvements. For 1.18.2 two options are Pufferfish and Purpur. Pufferfish has a lot of optimizations, but now Purpur actually downstreams Pufferfish too so it includes all of its improvements (plus a ton of other features which are optional and turned off by default). Purpur as far as I can tell is currently the most complete Paper fork, the only downside in my opinion is that they only support the latest versions of Minecraft. Previous Purpur versions have not been patched for Log4Shell. Since you are running 1.18.2, this shouldn't be a problem, but keep this in mind for the future - if using Purpur you'll want to update soon after a new server version releases to continue getting support, or switch to another Paper fork (which shouldn't be a problem as long as you don't use any of the optional Purpur features). I personally prefer just using the latest version anyway though, and then I use ViaVersion plus ViaBackwards to support older clients.

PurpurMC is mainly only used for it's features. It's got a ton of them, all of which you can view here! It now has Pufferfish patches as well, giving you improved performance. It does not bring back glitches that PaperMC removed, However, you can enable or disable sand duping within its configuration IIRC.

A highly optimized Paper fork designed for large servers requiring both maximum performance, stability, and "enterprise" features.

AlynaaMC is a mix of JettPack, Pufferfish, Paper and Yatopia (and you might want to read this, by the way, TL;DR: Yatopia is a buggy and unstable fork that is not even continued anymore)... Also, JettPack is just a playground for his dev so you definitely shouldn't use it at all.