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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Andrew Steinborn <git@steinborn.me>
Date: Sat, 3 Oct 2020 04:15:09 -0400
Subject: [PATCH] Lazily track plugin scoreboards by default
On servers with plugins that constantly churn through scoreboards, there is a risk of
degraded GC performance due to the number of scoreboards held on by weak references.
Most plugins don't even need the (vanilla) functionality that requires all plugin
scoreboards to be tracked by the server. Instead, only track scoreboards when an
objective is added with a non-dummy criteria.
This is a breaking change, however the change is a much more sensible default. In case
this breaks your workflow you can always force all scoreboards to be tracked with
settings.track-plugin-scoreboards in paper.yml.
diff --git a/src/main/java/org/bukkit/craftbukkit/scoreboard/CraftScoreboard.java b/src/main/java/org/bukkit/craftbukkit/scoreboard/CraftScoreboard.java
index f367261b119ab48c1d17b2b6552cce481c6effbb..a038ede38ebb507d6a0182a4a34f2b0722ef024e 100644
--- a/src/main/java/org/bukkit/craftbukkit/scoreboard/CraftScoreboard.java
+++ b/src/main/java/org/bukkit/craftbukkit/scoreboard/CraftScoreboard.java
@@ -19,6 +19,7 @@ import org.bukkit.scoreboard.Team;
public final class CraftScoreboard implements org.bukkit.scoreboard.Scoreboard {
final Scoreboard board;
+ boolean registeredGlobally = false; // Paper
CraftScoreboard(Scoreboard board) {
this.board = board;
@@ -52,6 +53,12 @@ public final class CraftScoreboard implements org.bukkit.scoreboard.Scoreboard {
Validate.notNull(renderType, "RenderType cannot be null");
Validate.isTrue(name.length() <= Short.MAX_VALUE, "The name '" + name + "' is longer than the limit of 32767 characters");
Validate.isTrue(board.getObjective(name) == null, "An objective of name '" + name + "' already exists");
+ // Paper start - the block comment from the old registerNewObjective didnt cause a conflict when rebasing, so this block wasn't added to the adventure registerNewObjective
+ if (((CraftCriteria) criteria).criteria != net.minecraft.world.scores.criteria.ObjectiveCriteria.DUMMY && !registeredGlobally) {
+ net.minecraft.server.MinecraftServer.getServer().server.getScoreboardManager().registerScoreboardForVanilla(this);
+ registeredGlobally = true;
+ }
+ // Paper end
net.minecraft.world.scores.Objective objective = board.addObjective(name, ((CraftCriteria) criteria).criteria, io.papermc.paper.adventure.PaperAdventure.asVanilla(displayName), CraftScoreboardTranslations.fromBukkitRender(renderType));
return new CraftObjective(this, objective);
}
diff --git a/src/main/java/org/bukkit/craftbukkit/scoreboard/CraftScoreboardManager.java b/src/main/java/org/bukkit/craftbukkit/scoreboard/CraftScoreboardManager.java
index 71f73db28ca124a49434e9da9eb39d182b7421e2..39e19bea16419b9cbe53016084b8bbf014dcb056 100644
--- a/src/main/java/org/bukkit/craftbukkit/scoreboard/CraftScoreboardManager.java
+++ b/src/main/java/org/bukkit/craftbukkit/scoreboard/CraftScoreboardManager.java
@@ -30,6 +30,7 @@ public final class CraftScoreboardManager implements ScoreboardManager {
public CraftScoreboardManager(MinecraftServer minecraftserver, net.minecraft.world.scores.Scoreboard scoreboardServer) {
this.mainScoreboard = new CraftScoreboard(scoreboardServer);
+ mainScoreboard.registeredGlobally = true; // Paper
this.server = minecraftserver;
this.scoreboards.add(mainScoreboard);
}
@@ -43,10 +44,22 @@ public final class CraftScoreboardManager implements ScoreboardManager {
public CraftScoreboard getNewScoreboard() {
org.spigotmc.AsyncCatcher.catchOp("scoreboard creation"); // Spigot
CraftScoreboard scoreboard = new CraftScoreboard(new ServerScoreboard(this.server));
- this.scoreboards.add(scoreboard);
+ // Paper start
+ if (io.papermc.paper.configuration.GlobalConfiguration.get().scoreboards.trackPluginScoreboards) {
+ scoreboard.registeredGlobally = true;
+ scoreboards.add(scoreboard);
+ }
+ // Paper end
return scoreboard;
}
+ // Paper start
+ public void registerScoreboardForVanilla(CraftScoreboard scoreboard) {
+ org.spigotmc.AsyncCatcher.catchOp("scoreboard registration");
+ scoreboards.add(scoreboard);
+ }
+ // Paper end
+
// CraftBukkit method
public CraftScoreboard getPlayerBoard(CraftPlayer player) {
CraftScoreboard board = this.playerBoards.get(player);
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