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Aikar 614a664bd3
Implement Chunk Priority / Urgency System for Chunks
Mark chunks that are blocking main thread for world generation as urgent

Implements a general priority system so that chunks that are sorted in
the generator queues can prioritize certain chunks over another.

Urgent chunks will jump to the front of the line, ensuring that a
sync chunk load on an ungenerated chunk does not lag the server for
a long period of time if the servers generator queues are filled with
lots of chunks already.

This massively reduces the lag spikes from sync chunk gens.

Then we further prioritize loading order so nearby chunks have higher
priority than distant chunks, reducing the pressure a high no tick
view distance holds on you.

Chunks in front of the player have higher priority, to help with
fast traveling players keep up with their movement.

This commit also improves single core cpu scenarios in that we will
now automatically disable Async Chunks as well as Minecrafts thread
pool.

It is never recommended to use async chunks on a single CPU as context
switching will be slower than just running it all on main.

This also bumps the number of server worker threads by default too.
Mojang does not utilize the workers in an effecient manner, resulting
in them using barely any sustained CPU.

So give it more workers so more chunks can be processed concurrently

This change also improves urgent chunk loading, so players flying into
unloaded chunks will hurt a little bit less (but still hurt)

Ping #3395 #3363 (Not marking as closed, we need to make prevent moving work)
2020-05-19 04:09:37 -04:00
.github/ISSUE_TEMPLATE [CI-SKIP] Update Issue template 2018-09-26 17:22:20 -04:00
licenses [CI-SKIP] Clarify project licensing 2018-03-06 20:41:03 -05:00
Paper-MojangAPI Rename to AsyncPlayerSendSuggestionsEvent to be consistent in naming 2020-05-02 15:29:03 -04:00
removed Remove some old removed 1.14 patches that are never going to be needed (fixed/already applied) 2020-04-02 00:42:15 -04:00
scripts Speed up rebuilding patches and reduce diff 2020-05-06 05:31:08 -04:00
Spigot-API-Patches Fix race condition reintroduced in Prioritize class loader patch 2020-05-18 01:18:44 -04:00
Spigot-Server-Patches Implement Chunk Priority / Urgency System for Chunks 2020-05-19 04:09:37 -04:00
work Updated Upstream (Bukkit/CraftBukkit/Spigot) 2020-05-12 01:27:07 -04:00
.editorconfig [CI-SKIP] add .editorconfig for base code style settings 2018-08-07 01:14:22 -04:00
.gitignore Hey vscode, get your files outta my repo 2019-06-08 15:38:10 -05:00
.gitmodules Cleanup and restructure the project 2016-04-01 23:15:41 -05:00
.travis.yml [CI-SKIP] Have travis ensure openjdk11 builds run 2018-10-24 16:26:47 -04:00
CONTRIBUTING.md [CI-SKIP] Passage outdated (#2776) 2020-01-09 19:43:46 -06:00
LICENSE.md Add API MinecraftServer#isStopping (#3129) 2020-04-11 01:51:35 -04:00
paper Updated Upstream (Bukkit/CraftBukkit) 2020-05-01 18:03:57 -04:00
pom.xml Implement Brigadier Mojang API 2020-04-27 01:42:12 -04:00
README.md [CI-SKIP] Update build badge in README to use proper job 2020-02-08 17:58:39 -06:00

Paper Build Status

High performance Spigot fork that aims to fix gameplay and mechanics inconsistencies.

Support and Project Discussion:

How To (Server Admins)

Paperclip is a jar file that you can download and run just like a normal jar file.

Download Paper from our downloads page.

Run the Paperclip jar directly from your server. Just like old times

How To (Plugin Developers)

  • See our API patches here
  • See upcoming, pending, and recently added API here
  • Paper API javadocs here: papermc.io/javadocs
  • Maven Repo (for paper-api):
<repository>
    <id>papermc</id>
    <url>https://papermc.io/repo/repository/maven-public/</url>
</repository>
  • Artifact Information:
<dependency>
    <groupId>com.destroystokyo.paper</groupId>
    <artifactId>paper-api</artifactId>
    <version>1.15.2-R0.1-SNAPSHOT</version>
    <scope>provided</scope>
 </dependency>

How To (Compiling Jar From Source)

To compile Paper, you need JDK 8, maven, and an internet connection.

Clone this repo, run ./paper jar from bash, get files.

How To (Pull Request)

See Contributing

Special Thanks To:

YourKit-Logo

YourKit, makers of the outstanding java profiler, support open source projects of all kinds with their full featured Java and .NET application profilers. We thank them for granting Paper an OSS license so that we can make our software the best it can be.