mirror of
https://github.com/PaperMC/Paper.git
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928bcc8d3a
Upstream has released updates that appear 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: 09943450 Update SnakeYAML version 5515734f SPIGOT-7162: Incorrect description for Entity#getVehicle javadoc 6f82b381 PR-788: Add getHand() to all relevant events CraftBukkit Changes: aaf484f6f SPIGOT-7163: CraftMerchantRecipe doesn't copy demand and specialPrice from BukkitMerchantRecipe 5329dd6fd PR-1107: Add getHand() to all relevant events 93061706e SPIGOT-7045: Ocelots never spawn with babies with spawn reason OCELOT_BABY
328 lines
13 KiB
Diff
328 lines
13 KiB
Diff
From 0000000000000000000000000000000000000000 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] Add debug for sync chunk loads
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This patch adds a tool to find calls to getChunkAt which would load
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chunks, however it must be enabled by setting the startup flag
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-Dpaper.debug-sync-loads=true
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- To get a debug log for sync loads, the command is
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/paper syncloadinfo
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- To clear clear the currently stored sync load info, use
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/paper syncloadinfo clear
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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 0000000000000000000000000000000000000000..0bb4aaa546939b67a5d22865190f30478a9337c1
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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 +1,175 @@
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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.Object2ObjectOpenHashMap;
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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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+import net.minecraft.world.level.Level;
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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<Level, 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 clear() {
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+ SYNC_LOADS.clear();
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+ }
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+
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+ public static void logSyncLoad(final Level 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 Level 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<Level, Object2ObjectOpenHashMap<ThrowableWithEquals, SyncLoadInformation>> entry : SYNC_LOADS.entrySet()) {
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+ final Level 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 || this.hash != other.hash) {
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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/io/papermc/paper/command/PaperCommand.java b/src/main/java/io/papermc/paper/command/PaperCommand.java
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index 65ee888280f917ccd11146505b7389513280a863..04bf08cbe45763f1338390c5ab4b0dcb334bd07a 100644
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--- a/src/main/java/io/papermc/paper/command/PaperCommand.java
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+++ b/src/main/java/io/papermc/paper/command/PaperCommand.java
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@@ -5,6 +5,7 @@ import io.papermc.paper.command.subcommands.EntityCommand;
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import io.papermc.paper.command.subcommands.FixLightCommand;
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import io.papermc.paper.command.subcommands.HeapDumpCommand;
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import io.papermc.paper.command.subcommands.ReloadCommand;
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+import io.papermc.paper.command.subcommands.SyncLoadInfoCommand;
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import io.papermc.paper.command.subcommands.VersionCommand;
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import it.unimi.dsi.fastutil.Pair;
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import java.util.ArrayList;
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@@ -44,6 +45,7 @@ public final class PaperCommand extends Command {
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commands.put(Set.of("version"), new VersionCommand());
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commands.put(Set.of("fixlight"), new FixLightCommand());
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commands.put(Set.of("debug", "chunkinfo", "holderinfo"), new ChunkDebugCommand());
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+ commands.put(Set.of("syncloadinfo"), new SyncLoadInfoCommand());
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return commands.entrySet().stream()
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.flatMap(entry -> entry.getKey().stream().map(s -> Map.entry(s, entry.getValue())))
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diff --git a/src/main/java/io/papermc/paper/command/subcommands/SyncLoadInfoCommand.java b/src/main/java/io/papermc/paper/command/subcommands/SyncLoadInfoCommand.java
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new file mode 100644
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index 0000000000000000000000000000000000000000..1120aef5b0dd983c467167f77245884e1198552a
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--- /dev/null
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+++ b/src/main/java/io/papermc/paper/command/subcommands/SyncLoadInfoCommand.java
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@@ -0,0 +1,78 @@
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+package io.papermc.paper.command.subcommands;
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+
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+import com.destroystokyo.paper.io.SyncLoadFinder;
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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 io.papermc.paper.command.CommandUtil;
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+import io.papermc.paper.command.PaperSubcommand;
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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.List;
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+import org.bukkit.command.CommandSender;
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+import org.checkerframework.checker.nullness.qual.NonNull;
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+import org.checkerframework.framework.qual.DefaultQualifier;
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+
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+import static net.kyori.adventure.text.Component.text;
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+import static net.kyori.adventure.text.format.NamedTextColor.GRAY;
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+import static net.kyori.adventure.text.format.NamedTextColor.GREEN;
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+import static net.kyori.adventure.text.format.NamedTextColor.RED;
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+
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+@DefaultQualifier(NonNull.class)
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+public final class SyncLoadInfoCommand implements PaperSubcommand {
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+ @Override
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+ public boolean execute(final CommandSender sender, final String subCommand, final String[] args) {
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+ this.doSyncLoadInfo(sender, args);
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+ return true;
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+ }
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+
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+ @Override
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+ public List<String> tabComplete(final CommandSender sender, final String subCommand, final String[] args) {
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+ return CommandUtil.getListMatchingLast(sender, args, "clear");
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+ }
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+
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+ private void doSyncLoadInfo(final CommandSender sender, final String[] args) {
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+ if (!SyncLoadFinder.ENABLED) {
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+ sender.sendMessage(text("This command requires the server startup flag '-Dpaper.debug-sync-loads=true' to be set.", RED));
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+ return;
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+ }
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+
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+ if (args.length > 0 && args[0].equals("clear")) {
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+ SyncLoadFinder.clear();
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+ sender.sendMessage(text("Sync load data cleared.", GRAY));
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+ return;
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+ }
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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(text("Writing sync load info to " + file, GREEN));
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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(text("Successfully written sync load information!", GREEN));
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+ } catch (Throwable thr) {
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+ sender.sendMessage(text("Failed to write sync load information!", RED));
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+ thr.printStackTrace();
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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/level/ServerChunkCache.java b/src/main/java/net/minecraft/server/level/ServerChunkCache.java
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index f3375712ae25ef1503a030b3059477f350d922da..60264feb656861d5a9474fe4285ac69d8d12269e 100644
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--- a/src/main/java/net/minecraft/server/level/ServerChunkCache.java
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+++ b/src/main/java/net/minecraft/server/level/ServerChunkCache.java
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@@ -444,6 +444,7 @@ public class ServerChunkCache extends ChunkSource {
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// Paper start - async chunk io/loading
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io.papermc.paper.chunk.system.scheduling.ChunkTaskScheduler.pushChunkWait(this.level, x1, z1); // Paper - rewrite chunk system
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// Paper end
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+ com.destroystokyo.paper.io.SyncLoadFinder.logSyncLoad(this.level, x1, z1); // Paper - sync load info
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this.level.timings.syncChunkLoad.startTiming(); // Paper
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chunkproviderserver_b.managedBlock(completablefuture::isDone);
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io.papermc.paper.chunk.system.scheduling.ChunkTaskScheduler.popChunkWait(); // Paper - async chunk debug // Paper - rewrite chunk system
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diff --git a/src/main/java/net/minecraft/server/level/ServerLevel.java b/src/main/java/net/minecraft/server/level/ServerLevel.java
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index b8ac1df1f2e2114a16d417b31fbbbc734074b2b6..d23c04ce96d12c0ec11c97433c9fa4dca53d3e6e 100644
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--- a/src/main/java/net/minecraft/server/level/ServerLevel.java
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+++ b/src/main/java/net/minecraft/server/level/ServerLevel.java
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@@ -421,6 +421,12 @@ public class ServerLevel extends Level implements WorldGenLevel {
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return this.entityLookup;
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}
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// Paper end - rewrite chunk system
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+ // Paper start
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+ @Override
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+ public boolean hasChunk(int chunkX, int chunkZ) {
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+ return this.getChunkSource().getChunkAtIfLoadedImmediately(chunkX, chunkZ) != null;
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+ }
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+ // Paper end
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// Paper start - optimise getPlayerByUUID
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@Nullable
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