mirror of
https://github.com/PaperMC/Paper.git
synced 2024-09-12 15:08:27 +02:00
Upstream has released updates that appears to apply and compile correctly. This update has not been tested by PaperMC and as with ANY update, please do your own testing Bukkit Changes: af58d316 Fix javadoc warning in Firework.setShotAtAngle CraftBukkit Changes:e2dd6555
SPIGOT-5372: Re-add tile entity fixer due to MC-1639451e7a197f
Fix incorrect inequality in683bae0670
db98d54d
SPIGOT-5362: Suspicious stews fail isSimilar check Spigot Changes: 56f84710 Rebuild patches
350 lines
14 KiB
Diff
350 lines
14 KiB
Diff
From f90a04ddc82483f855e77ec91c3de3f9e2befdf6 Mon Sep 17 00:00:00 2001
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From: Spottedleaf <Spottedleaf@users.noreply.github.com>
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Date: Fri, 19 Jul 2019 03:29:14 -0700
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Subject: [PATCH] Reduce sync loads
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This reduces calls to getChunkAt which would load chunks.
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This patch also adds a tool to find calls which are doing this, however
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it must be enabled by setting the startup flag -Dpaper.debug-sync-loads=true
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To get a debug log for sync loads, the command is /paper syncloadinfo
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diff --git a/src/main/java/com/destroystokyo/paper/PaperCommand.java b/src/main/java/com/destroystokyo/paper/PaperCommand.java
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index 09efbf725..132397b3f 100644
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--- a/src/main/java/com/destroystokyo/paper/PaperCommand.java
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+++ b/src/main/java/com/destroystokyo/paper/PaperCommand.java
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@@ -1,9 +1,13 @@
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package com.destroystokyo.paper;
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+import com.destroystokyo.paper.io.SyncLoadFinder;
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import com.google.common.base.Functions;
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import com.google.common.collect.Iterables;
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import com.google.common.collect.Lists;
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import com.google.common.collect.Maps;
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+import com.google.gson.JsonObject;
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+import com.google.gson.internal.Streams;
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+import com.google.gson.stream.JsonWriter;
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import net.minecraft.server.*;
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import org.apache.commons.lang3.tuple.MutablePair;
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import org.apache.commons.lang3.tuple.Pair;
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@@ -18,6 +22,9 @@ import org.bukkit.craftbukkit.CraftWorld;
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import org.bukkit.entity.Player;
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import java.io.File;
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+import java.io.FileOutputStream;
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+import java.io.PrintStream;
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+import java.io.StringWriter;
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import java.time.LocalDateTime;
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import java.time.format.DateTimeFormatter;
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import java.util.*;
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@@ -130,6 +137,9 @@ public class PaperCommand extends Command {
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case "chunkinfo":
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doChunkInfo(sender, args);
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break;
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+ case "syncloadinfo":
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+ this.doSyncLoadInfo(sender, args);
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+ break;
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case "ver":
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case "version":
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Command ver = org.bukkit.Bukkit.getServer().getCommandMap().getCommand("version");
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@@ -146,6 +156,40 @@ public class PaperCommand extends Command {
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return true;
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}
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+ private void doSyncLoadInfo(CommandSender sender, String[] args) {
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+ if (!SyncLoadFinder.ENABLED) {
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+ sender.sendMessage(ChatColor.RED + "This command requires the server startup flag '-Dpaper.debug-sync-loads=true' to be set.");
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+ return;
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+ }
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+ File file = new File(new File(new File("."), "debug"),
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+ "sync-load-info" + DateTimeFormatter.ofPattern("yyyy-MM-dd_HH.mm.ss").format(LocalDateTime.now()) + ".txt");
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+ file.getParentFile().mkdirs();
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+ sender.sendMessage(ChatColor.GREEN + "Writing sync load info to " + file.toString());
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+
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+
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+ try {
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+ final JsonObject data = SyncLoadFinder.serialize();
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+
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+ StringWriter stringWriter = new StringWriter();
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+ JsonWriter jsonWriter = new JsonWriter(stringWriter);
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+ jsonWriter.setIndent(" ");
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+ jsonWriter.setLenient(false);
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+ Streams.write(data, jsonWriter);
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+
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+ String fileData = stringWriter.toString();
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+
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+ try (
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+ PrintStream out = new PrintStream(new FileOutputStream(file), false, "UTF-8")
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+ ) {
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+ out.print(fileData);
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+ }
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+ sender.sendMessage(ChatColor.GREEN + "Successfully written sync load information!");
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+ } catch (Throwable thr) {
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+ sender.sendMessage(ChatColor.RED + "Failed to write sync load information");
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+ thr.printStackTrace();
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+ }
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+ }
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+
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private void doChunkInfo(CommandSender sender, String[] args) {
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List<org.bukkit.World> worlds;
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if (args.length < 2 || args[1].equals("*")) {
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diff --git a/src/main/java/com/destroystokyo/paper/io/SyncLoadFinder.java b/src/main/java/com/destroystokyo/paper/io/SyncLoadFinder.java
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new file mode 100644
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index 000000000..59aec1032
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--- /dev/null
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+++ b/src/main/java/com/destroystokyo/paper/io/SyncLoadFinder.java
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@@ -0,0 +1,172 @@
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+package com.destroystokyo.paper.io;
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+
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+import com.google.gson.JsonArray;
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+import com.google.gson.JsonObject;
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+import com.mojang.datafixers.util.Pair;
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+import it.unimi.dsi.fastutil.longs.Long2IntMap;
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+import it.unimi.dsi.fastutil.longs.Long2IntOpenHashMap;
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+import it.unimi.dsi.fastutil.objects.Object2IntOpenHashMap;
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+import it.unimi.dsi.fastutil.objects.Object2ObjectOpenHashMap;
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+import net.minecraft.server.World;
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+
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+import java.util.ArrayList;
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+import java.util.List;
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+import java.util.Map;
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+import java.util.WeakHashMap;
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+
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+public class SyncLoadFinder {
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+
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+ public static final boolean ENABLED = Boolean.getBoolean("paper.debug-sync-loads");
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+
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+ private static final WeakHashMap<World, Object2ObjectOpenHashMap<ThrowableWithEquals, SyncLoadInformation>> SYNC_LOADS = new WeakHashMap<>();
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+
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+ private static final class SyncLoadInformation {
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+
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+ public int times;
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+
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+ public final Long2IntOpenHashMap coordinateTimes = new Long2IntOpenHashMap();
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+ }
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+
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+ public static void logSyncLoad(final World world, final int chunkX, final int chunkZ) {
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+ if (!ENABLED) {
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+ return;
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+ }
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+
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+ final ThrowableWithEquals stacktrace = new ThrowableWithEquals(Thread.currentThread().getStackTrace());
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+
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+ SYNC_LOADS.compute(world, (final World keyInMap, Object2ObjectOpenHashMap<ThrowableWithEquals, SyncLoadInformation> map) -> {
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+ if (map == null) {
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+ map = new Object2ObjectOpenHashMap<>();
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+ }
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+
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+ map.compute(stacktrace, (ThrowableWithEquals keyInMap0, SyncLoadInformation valueInMap) -> {
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+ if (valueInMap == null) {
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+ valueInMap = new SyncLoadInformation();
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+ }
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+
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+ ++valueInMap.times;
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+
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+ valueInMap.coordinateTimes.compute(IOUtil.getCoordinateKey(chunkX, chunkZ), (Long keyInMap1, Integer valueInMap1) -> {
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+ return valueInMap1 == null ? Integer.valueOf(1) : Integer.valueOf(valueInMap1.intValue() + 1);
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+ });
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+
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+ return valueInMap;
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+ });
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+
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+ return map;
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+ });
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+ }
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+
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+ public static JsonObject serialize() {
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+ final JsonObject ret = new JsonObject();
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+
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+ final JsonArray worldsData = new JsonArray();
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+
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+ for (final Map.Entry<World, Object2ObjectOpenHashMap<ThrowableWithEquals, SyncLoadInformation>> entry : SYNC_LOADS.entrySet()) {
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+ final World world = entry.getKey();
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+
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+ final JsonObject worldData = new JsonObject();
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+
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+ worldData.addProperty("name", world.getWorld().getName());
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+
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+ final List<Pair<ThrowableWithEquals, SyncLoadInformation>> data = new ArrayList<>();
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+
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+ entry.getValue().forEach((ThrowableWithEquals stacktrace, SyncLoadInformation times) -> {
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+ data.add(new Pair<>(stacktrace, times));
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+ });
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+
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+ data.sort((Pair<ThrowableWithEquals, SyncLoadInformation> pair1, Pair<ThrowableWithEquals, SyncLoadInformation> pair2) -> {
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+ return Integer.compare(pair2.getSecond().times, pair1.getSecond().times); // reverse order
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+ });
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+
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+ final JsonArray stacktraces = new JsonArray();
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+
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+ for (Pair<ThrowableWithEquals, SyncLoadInformation> pair : data) {
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+ final JsonObject stacktrace = new JsonObject();
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+
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+ stacktrace.addProperty("times", pair.getSecond().times);
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+
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+ final JsonArray traces = new JsonArray();
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+
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+ for (StackTraceElement element : pair.getFirst().stacktrace) {
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+ traces.add(String.valueOf(element));
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+ }
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+
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+ stacktrace.add("stacktrace", traces);
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+
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+ final JsonArray coordinates = new JsonArray();
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+
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+ for (Long2IntMap.Entry coordinate : pair.getSecond().coordinateTimes.long2IntEntrySet()) {
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+ final long key = coordinate.getLongKey();
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+ final int times = coordinate.getIntValue();
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+ coordinates.add("(" + IOUtil.getCoordinateX(key) + "," + IOUtil.getCoordinateZ(key) + "): " + times);
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+ }
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+
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+ stacktrace.add("coordinates", coordinates);
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+
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+ stacktraces.add(stacktrace);
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+ }
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+
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+
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+ worldData.add("stacktraces", stacktraces);
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+ worldsData.add(worldData);
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+ }
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+
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+ ret.add("worlds", worldsData);
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+
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+ return ret;
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+ }
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+
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+ static final class ThrowableWithEquals {
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+
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+ private final StackTraceElement[] stacktrace;
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+ private final int hash;
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+
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+ public ThrowableWithEquals(final StackTraceElement[] stacktrace) {
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+ this.stacktrace = stacktrace;
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+ this.hash = ThrowableWithEquals.hash(stacktrace);
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+ }
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+
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+ public static int hash(final StackTraceElement[] stacktrace) {
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+ int hash = 0;
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+
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+ for (int i = 0; i < stacktrace.length; ++i) {
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+ hash *= 31;
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+ hash += stacktrace[i].hashCode();
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+ }
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+
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+ return hash;
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+ }
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+
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+ @Override
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+ public int hashCode() {
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+ return this.hash;
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+ }
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+
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+ @Override
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+ public boolean equals(final Object obj) {
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+ if (obj == null || obj.getClass() != this.getClass()) {
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+ return false;
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+ }
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+
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+ final ThrowableWithEquals other = (ThrowableWithEquals)obj;
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+ final StackTraceElement[] otherStackTrace = other.stacktrace;
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+
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+ if (this.stacktrace.length != otherStackTrace.length) {
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+ return false;
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+ }
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+
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+ if (this == obj) {
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+ return true;
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+ }
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+
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+ for (int i = 0; i < this.stacktrace.length; ++i) {
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+ if (!this.stacktrace[i].equals(otherStackTrace[i])) {
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+ return false;
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+ }
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+ }
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+
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+ return true;
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+ }
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+ }
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+}
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diff --git a/src/main/java/net/minecraft/server/ChunkProviderServer.java b/src/main/java/net/minecraft/server/ChunkProviderServer.java
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index 277c2245d..8d7971ad8 100644
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--- a/src/main/java/net/minecraft/server/ChunkProviderServer.java
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+++ b/src/main/java/net/minecraft/server/ChunkProviderServer.java
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@@ -280,6 +280,7 @@ public class ChunkProviderServer extends IChunkProvider {
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this.world.asyncChunkTaskManager.raisePriority(x, z, com.destroystokyo.paper.io.PrioritizedTaskQueue.HIGHEST_PRIORITY);
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com.destroystokyo.paper.io.chunk.ChunkTaskManager.pushChunkWait(this.world, x, z);
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// Paper end
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+ com.destroystokyo.paper.io.SyncLoadFinder.logSyncLoad(this.world, x, z); // Paper - sync load info
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this.world.timings.chunkAwait.startTiming(); // Paper
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this.serverThreadQueue.awaitTasks(completablefuture::isDone);
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com.destroystokyo.paper.io.chunk.ChunkTaskManager.popChunkWait(); // Paper - async chunk debug
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diff --git a/src/main/java/net/minecraft/server/World.java b/src/main/java/net/minecraft/server/World.java
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index b81b37445..9d29fc8ca 100644
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--- a/src/main/java/net/minecraft/server/World.java
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+++ b/src/main/java/net/minecraft/server/World.java
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@@ -1195,14 +1195,14 @@ public abstract class World implements IIBlockAccess, GeneratorAccess, AutoClose
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}
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public boolean n(BlockPosition blockposition) {
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- return isOutsideWorld(blockposition) ? false : this.chunkProvider.b(blockposition.getX() >> 4, blockposition.getZ() >> 4);
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+ return isOutsideWorld(blockposition) ? false : this.isLoaded(blockposition); // Paper - reduce sync loads
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}
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public boolean a(BlockPosition blockposition, Entity entity) {
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if (isOutsideWorld(blockposition)) {
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return false;
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} else {
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- IChunkAccess ichunkaccess = this.getChunkAt(blockposition.getX() >> 4, blockposition.getZ() >> 4, ChunkStatus.FULL, false);
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+ IChunkAccess ichunkaccess = this.getChunkIfLoadedImmediately(blockposition.getX() >> 4, blockposition.getZ() >> 4); // Paper - reduce sync loads
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return ichunkaccess == null ? false : ichunkaccess.getType(blockposition).a((IBlockAccess) this, blockposition, entity);
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}
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@@ -1249,7 +1249,7 @@ public abstract class World implements IIBlockAccess, GeneratorAccess, AutoClose
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for (int i1 = i; i1 <= j; ++i1) {
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for (int j1 = k; j1 <= l; ++j1) {
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- Chunk chunk = this.getChunkProvider().getChunkAt(i1, j1, false);
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+ Chunk chunk = (Chunk)this.getChunkIfLoadedImmediately(i1, j1); // Paper
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if (chunk != null) {
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chunk.a(entity, axisalignedbb, list, predicate);
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@@ -1269,7 +1269,7 @@ public abstract class World implements IIBlockAccess, GeneratorAccess, AutoClose
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for (int i1 = i; i1 < j; ++i1) {
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for (int j1 = k; j1 < l; ++j1) {
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- Chunk chunk = this.getChunkProvider().getChunkAt(i1, j1, false);
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+ Chunk chunk = (Chunk)this.getChunkIfLoadedImmediately(i1, j1); // Paper
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if (chunk != null) {
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chunk.a(entitytypes, axisalignedbb, list, predicate);
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@@ -1291,7 +1291,7 @@ public abstract class World implements IIBlockAccess, GeneratorAccess, AutoClose
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for (int i1 = i; i1 < j; ++i1) {
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for (int j1 = k; j1 < l; ++j1) {
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- Chunk chunk = ichunkprovider.getChunkAt(i1, j1, false);
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+ Chunk chunk = (Chunk)this.getChunkIfLoadedImmediately(i1, j1); // Paper
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if (chunk != null) {
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chunk.a(oclass, axisalignedbb, list, predicate);
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diff --git a/src/main/java/net/minecraft/server/WorldServer.java b/src/main/java/net/minecraft/server/WorldServer.java
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index 3a6745dcc..b7878201b 100644
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--- a/src/main/java/net/minecraft/server/WorldServer.java
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+++ b/src/main/java/net/minecraft/server/WorldServer.java
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@@ -151,6 +151,12 @@ public class WorldServer extends World {
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};
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public final com.destroystokyo.paper.io.chunk.ChunkTaskManager asyncChunkTaskManager;
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// Paper end
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+ // Paper start
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+ @Override
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+ public boolean isChunkLoaded(int x, int z) {
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+ return this.getChunkProvider().getChunkAtIfLoadedImmediately(x, z) != null;
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+ }
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+ // Paper end
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// Add env and gen to constructor
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public WorldServer(MinecraftServer minecraftserver, Executor executor, WorldNBTStorage worldnbtstorage, WorldData worlddata, DimensionManager dimensionmanager, GameProfilerFiller gameprofilerfiller, WorldLoadListener worldloadlistener, org.bukkit.World.Environment env, org.bukkit.generator.ChunkGenerator gen) {
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--
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2.23.0
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