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Paper/Spigot-Server-Patches/0321-Optimize-World-Time-Updates.patch
Aikar 897dd2c840
Foundational work for Future Memory usage improvements
This commit doesn't do much on its own, but adds a new Java Cleaner API
that lets us hook into Garbage Collector events to reclaim pooled objects and
return them to the pool.

Adds framework for Network Packets to know when a packet has finished dispatching
to get an idea when a packet is done sending to players.

Rewrites PooledObjects impl to properly respect max pool size and remove
almost all risk of contention.

Bumps the Paper Async Task Queue to use 2 threads, and properly shuts it down on shutdown.
2020-05-16 21:38:19 -04:00

43 Zeilen
2.6 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Fri, 2 Nov 2018 23:11:51 -0400
Subject: [PATCH] Optimize World Time Updates
Splits time updates into incremental updates as well as does
the updates per world, so that we can re-use the same packet
object for every player unless they have per-player time enabled.
diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
index 66097d8cbc916d459ac0ab3b69fbac91a5b57ed3..207dd30539fa3961ba96aafe1e3cfef5020a885c 100644
--- a/src/main/java/net/minecraft/server/MinecraftServer.java
+++ b/src/main/java/net/minecraft/server/MinecraftServer.java
@@ -1169,12 +1169,24 @@ public abstract class MinecraftServer extends IAsyncTaskHandlerReentrant<TickTas
MinecraftTimings.timeUpdateTimer.startTiming(); // Spigot // Paper
// Send time updates to everyone, it will get the right time from the world the player is in.
- if (this.ticks % 20 == 0) {
- for (int i = 0; i < this.getPlayerList().players.size(); ++i) {
- EntityPlayer entityplayer = (EntityPlayer) this.getPlayerList().players.get(i);
- entityplayer.playerConnection.sendPacket(new PacketPlayOutUpdateTime(entityplayer.world.getTime(), entityplayer.getPlayerTime(), entityplayer.world.getGameRules().getBoolean(GameRules.DO_DAYLIGHT_CYCLE))); // Add support for per player time
+ // Paper start - optimize time updates
+ for (final WorldServer world : this.getWorlds()) {
+ final boolean doDaylight = world.getGameRules().getBoolean(GameRules.DO_DAYLIGHT_CYCLE);
+ final long dayTime = world.getDayTime();
+ long worldTime = world.getTime();
+ final PacketPlayOutUpdateTime worldPacket = new PacketPlayOutUpdateTime(worldTime, dayTime, doDaylight);
+ for (EntityHuman entityhuman : world.getPlayers()) {
+ if (!(entityhuman instanceof EntityPlayer) || (ticks + entityhuman.getId()) % 20 != 0) {
+ continue;
+ }
+ EntityPlayer entityplayer = (EntityPlayer) entityhuman;
+ long playerTime = entityplayer.getPlayerTime();
+ PacketPlayOutUpdateTime packet = (playerTime == dayTime) ? worldPacket :
+ new PacketPlayOutUpdateTime(worldTime, playerTime, doDaylight);
+ entityplayer.playerConnection.sendPacket(packet); // Add support for per player time
}
}
+ // Paper end
MinecraftTimings.timeUpdateTimer.stopTiming(); // Spigot // Paper
while (iterator.hasNext()) {