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Aikar 81e655d7fa
Optimize Voxel Shape Merging
This method shows up as super hot in profiler, and also a high "self" time.

Upon analyzing, it appears most usages of this method fall down to the final
else statement of the nasty ternary.

Upon even further analyzation, it appears then the majority of those have a
consistent list 1.... One with Infinity head and Tails.

First optimization is to detect these infinite states and immediately return that
VoxelShapeMergerList so we can avoid testing the rest for most cases.

Break the method into 2 to help the JVM promote inlining of this fast path.

Then it was also noticed that VoxelShapeMergerList constructor is also a hotspot
with a high self time...

Well, knowing that in most cases our list 1 is actualy the same value, it allows
us to know that with an infinite list1, the result on the merger is essentially
list2 as the final values.

This let us analyze the 2 potential states (Infinite with 2 sources or 4 sources)
and compute a deterministic result for the MergerList values.

Additionally, this lets us avoid even allocating new objects for this too, further
reducing memory usage.
2020-05-03 23:02:52 -04:00
.github/ISSUE_TEMPLATE [CI-SKIP] Update Issue template 2018-09-26 17:22:20 -04:00
licenses
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 Update test server startup script 2020-04-09 20:45:38 -04:00
Spigot-API-Patches Fix being kicked in survival for block picking - Fixes #3277 2020-05-02 13:32:03 -04:00
Spigot-Server-Patches Optimize Voxel Shape Merging 2020-05-03 23:02:52 -04:00
work Updated Upstream (Bukkit/CraftBukkit) 2020-05-01 18:03:57 -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
.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CONTRIBUTING.md [CI-SKIP] Passage outdated (#2776) 2020-01-09 19:43:46 -06:00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.