geforkt von Mirrors/Paper
c5a10665b8
Spigot still maintains some partial implementation of "tick skipping", a practice in which the MinecraftServer.currentTick field is updated not by an increment of one per actual tick, but instead set to System.currentTimeMillis() / 50. This behaviour means that the tracked tick may "skip" a tick value in case a previous tick took more than the expected 50ms. To compensate for this in important paths, spigot/craftbukkit implements "wall-time". Instead of incrementing/decrementing ticks on block entities/entities by one for each call to their tick() method, they instead increment/decrement important values, like an ItemEntity's age or pickupDelay, by the difference of `currentTick - lastTick`, where `lastTick` is the value of `currentTick` during the last tick() call. These "fixes" however do not play nicely with minecraft's simulation distance as entities/block entities implementing the above behaviour would "catch up" their values when moving from a non-ticking chunk to a ticking one as their `lastTick` value remains stuck on the last tick in a ticking chunk and hence lead to a large "catch up" once ticked again. Paper completely removes the "tick skipping" behaviour (See patch "Further-improve-server-tick-loop"), making the above precautions completely unnecessary, which also rids paper of the previous described incompatibility with non-ticking chunks.
67 Zeilen
3.6 KiB
Diff
67 Zeilen
3.6 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
|
|
From: Callahan <mr.callahhh@gmail.com>
|
|
Date: Wed, 8 Apr 2020 02:42:14 -0500
|
|
Subject: [PATCH] Async command map building
|
|
|
|
This adds a custom pool inorder to make sure that they are closed
|
|
without much though, as it doesn't matter if the client is not sent
|
|
commands if the server is restarting. Using the default async pool caused issues to arise
|
|
due to the shutdown logic generally being much later.
|
|
|
|
diff --git a/src/main/java/net/minecraft/commands/Commands.java b/src/main/java/net/minecraft/commands/Commands.java
|
|
index 72756ef14b8ec8afd80313b9f6aaf76722cb18cf..a05aea8561ac102476ee1b3068942b095950a86a 100644
|
|
--- a/src/main/java/net/minecraft/commands/Commands.java
|
|
+++ b/src/main/java/net/minecraft/commands/Commands.java
|
|
@@ -450,6 +450,24 @@ public class Commands {
|
|
if ( org.spigotmc.SpigotConfig.tabComplete < 0 ) return; // Spigot
|
|
// CraftBukkit start
|
|
// Register Vanilla commands into builtRoot as before
|
|
+ // Paper start - Perf: Async command map building
|
|
+ COMMAND_SENDING_POOL.execute(() -> {
|
|
+ this.sendAsync(player);
|
|
+ });
|
|
+ }
|
|
+
|
|
+ public static final java.util.concurrent.ThreadPoolExecutor COMMAND_SENDING_POOL = new java.util.concurrent.ThreadPoolExecutor(
|
|
+ 0, 2, 60L, java.util.concurrent.TimeUnit.SECONDS,
|
|
+ new java.util.concurrent.LinkedBlockingQueue<>(),
|
|
+ new com.google.common.util.concurrent.ThreadFactoryBuilder()
|
|
+ .setNameFormat("Paper Async Command Builder Thread Pool - %1$d")
|
|
+ .setUncaughtExceptionHandler(new net.minecraft.DefaultUncaughtExceptionHandlerWithName(net.minecraft.server.MinecraftServer.LOGGER))
|
|
+ .build(),
|
|
+ new java.util.concurrent.ThreadPoolExecutor.DiscardPolicy()
|
|
+ );
|
|
+
|
|
+ private void sendAsync(ServerPlayer player) {
|
|
+ // Paper end - Perf: Async command map building
|
|
Map<CommandNode<CommandSourceStack>, CommandNode<SharedSuggestionProvider>> map = Maps.newIdentityHashMap(); // Use identity to prevent aliasing issues
|
|
RootCommandNode vanillaRoot = new RootCommandNode();
|
|
|
|
@@ -467,7 +485,14 @@ public class Commands {
|
|
for (CommandNode node : rootcommandnode.getChildren()) {
|
|
bukkit.add(node.getName());
|
|
}
|
|
+ // Paper start - Perf: Async command map building
|
|
+ net.minecraft.server.MinecraftServer.getServer().execute(() -> {
|
|
+ runSync(player, bukkit, rootcommandnode);
|
|
+ });
|
|
+ }
|
|
|
|
+ private void runSync(ServerPlayer player, Collection<String> bukkit, RootCommandNode<SharedSuggestionProvider> rootcommandnode) {
|
|
+ // Paper end - Perf: Async command map building
|
|
PlayerCommandSendEvent event = new PlayerCommandSendEvent(player.getBukkitEntity(), new LinkedHashSet<>(bukkit));
|
|
event.getPlayer().getServer().getPluginManager().callEvent(event);
|
|
|
|
diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
|
|
index 699191356a9d873fa6bbe04ea3e5db91eb2db41d..8ecfd7a3daa99dabe796d28d27790fb8b45c628b 100644
|
|
--- a/src/main/java/net/minecraft/server/MinecraftServer.java
|
|
+++ b/src/main/java/net/minecraft/server/MinecraftServer.java
|
|
@@ -930,6 +930,7 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
|
|
}
|
|
|
|
MinecraftServer.LOGGER.info("Stopping server");
|
|
+ Commands.COMMAND_SENDING_POOL.shutdownNow(); // Paper - Perf: Async command map building; Shutdown and don't bother finishing
|
|
MinecraftTimings.stopServer(); // Paper
|
|
// CraftBukkit start
|
|
if (this.server != null) {
|