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Updated Upstream (Bukkit/CraftBukkit) 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: f02baa38 PR-988: Add World#getIntersectingChunks(BoundingBox) 9321d665 Move getItemInUse up to LivingEntity 819eef73 PR-959: Add access to current item's remaining ticks c4fdadb0 SPIGOT-7601: Add AbstractArrow#getItem be8261ca Add support for Java 22 26119676 PR-979: Add more translation keys 66753362 PR-985: Correct book maximum pages and characters per page documentation c8be92fa PR-980: Improve getArmorContents() documentation f1120ee2 PR-983: Expose riptide velocity to PlayerRiptideEvent CraftBukkit Changes: dfaa89bbe PR-1369: Add World#getIntersectingChunks(BoundingBox) 51bbab2b9 Move getItemInUse up to LivingEntity 668e09602 PR-1331: Add access to current item's remaining ticks a639406d1 SPIGOT-7601: Add AbstractArrow#getItem 0398930fc SPIGOT-7602: Allow opening in-world horse and related inventories ffd15611c SPIGOT-7608: Allow empty lists to morph to any PDT list 2188dcfa9 Add support for Java 22 45d6a609f SPIGOT-7604: Revert "SPIGOT-7365: DamageCause blocked by shield should trigger invulnerableTime" 06d915943 SPIGOT-7365: DamageCause blocked by shield should trigger invulnerableTime ca3bc3707 PR-1361: Add more translation keys 366c3ca80 SPIGOT-7600: EntityChangeBlockEvent is not fired for frog eggs 06d0f9ba8 SPIGOT-7593: Fix sapling growth physics / client-side updates 45c2608e4 PR-1366: Expose riptide velocity to PlayerRiptideEvent 29b6bb79b SPIGOT-7587: Remove fixes for now-resolved MC-142590 and MC-109346
177 lines
9.1 KiB
Diff
177 lines
9.1 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: Mon, 6 Apr 2020 04:20:44 -0700
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Subject: [PATCH] Execute chunk tasks mid-tick
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This will help the server load chunks if tick times are high.
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diff --git a/src/main/java/co/aikar/timings/MinecraftTimings.java b/src/main/java/co/aikar/timings/MinecraftTimings.java
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index 6b3cde6d4d1e63bec01f502f2027ee9fddac08aa..46449728f69ee7d4f78470f8da23c055acd53a3b 100644
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--- a/src/main/java/co/aikar/timings/MinecraftTimings.java
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+++ b/src/main/java/co/aikar/timings/MinecraftTimings.java
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@@ -48,6 +48,8 @@ public final class MinecraftTimings {
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public static final Timing antiXrayObfuscateTimer = Timings.ofSafe("anti-xray - obfuscate");
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public static final Timing scoreboardScoreSearch = Timings.ofSafe("Scoreboard score search"); // Paper - add timings for scoreboard search
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+ public static final Timing midTickChunkTasks = Timings.ofSafe("Mid Tick Chunk Tasks");
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+
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private static final Map<Class<?>, String> taskNameCache = new MapMaker().weakKeys().makeMap();
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private MinecraftTimings() {}
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diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
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index 6454e139cc6322b23b9810cbd450aac5d7b3d942..55204f27d3633d0aef01ac2469925d02865ab2fe 100644
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--- a/src/main/java/net/minecraft/server/MinecraftServer.java
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+++ b/src/main/java/net/minecraft/server/MinecraftServer.java
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@@ -1357,8 +1357,79 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
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return flag;
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}
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+ // Paper start - execute chunk tasks mid tick
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+ static final long CHUNK_TASK_QUEUE_BACKOFF_MIN_TIME = 25L * 1000L; // 25us
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+ static final long MAX_CHUNK_EXEC_TIME = 1000L; // 1us
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+
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+ static final long TASK_EXECUTION_FAILURE_BACKOFF = 5L * 1000L; // 5us
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+
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+ private static long lastMidTickExecute;
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+ private static long lastMidTickExecuteFailure;
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+
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+ private boolean tickMidTickTasks() {
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+ // give all worlds a fair chance at by targetting them all.
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+ // if we execute too many tasks, that's fine - we have logic to correctly handle overuse of allocated time.
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+ boolean executed = false;
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+ for (ServerLevel world : this.getAllLevels()) {
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+ long currTime = System.nanoTime();
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+ if (currTime - world.lastMidTickExecuteFailure <= TASK_EXECUTION_FAILURE_BACKOFF) {
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+ continue;
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+ }
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+ if (!world.getChunkSource().pollTask()) {
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+ // we need to back off if this fails
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+ world.lastMidTickExecuteFailure = currTime;
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+ } else {
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+ executed = true;
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+ }
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+ }
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+
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+ return executed;
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+ }
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+
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+ public final void executeMidTickTasks() {
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+ org.spigotmc.AsyncCatcher.catchOp("mid tick chunk task execution");
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+ long startTime = System.nanoTime();
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+ if ((startTime - lastMidTickExecute) <= CHUNK_TASK_QUEUE_BACKOFF_MIN_TIME || (startTime - lastMidTickExecuteFailure) <= TASK_EXECUTION_FAILURE_BACKOFF) {
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+ // it's shown to be bad to constantly hit the queue (chunk loads slow to a crawl), even if no tasks are executed.
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+ // so, backoff to prevent this
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+ return;
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+ }
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+
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+ co.aikar.timings.MinecraftTimings.midTickChunkTasks.startTiming();
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+ try {
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+ for (;;) {
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+ boolean moreTasks = this.tickMidTickTasks();
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+ long currTime = System.nanoTime();
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+ long diff = currTime - startTime;
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+
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+ if (!moreTasks || diff >= MAX_CHUNK_EXEC_TIME) {
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+ if (!moreTasks) {
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+ lastMidTickExecuteFailure = currTime;
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+ }
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+
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+ // note: negative values reduce the time
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+ long overuse = diff - MAX_CHUNK_EXEC_TIME;
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+ if (overuse >= (10L * 1000L * 1000L)) { // 10ms
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+ // make sure something like a GC or dumb plugin doesn't screw us over...
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+ overuse = 10L * 1000L * 1000L; // 10ms
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+ }
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+
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+ double overuseCount = (double)overuse/(double)MAX_CHUNK_EXEC_TIME;
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+ long extraSleep = (long)Math.round(overuseCount*CHUNK_TASK_QUEUE_BACKOFF_MIN_TIME);
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+
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+ lastMidTickExecute = currTime + extraSleep;
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+ return;
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+ }
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+ }
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+ } finally {
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+ co.aikar.timings.MinecraftTimings.midTickChunkTasks.stopTiming();
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+ }
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+ }
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+ // Paper end - execute chunk tasks mid tick
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+
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private boolean pollTaskInternal() {
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if (super.pollTask()) {
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+ this.executeMidTickTasks(); // Paper - execute chunk tasks mid tick
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return true;
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} else {
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boolean ret = false; // Paper - force execution of all worlds, do not just bias the first
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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 4e0f80b26f1a1703184e38d739996b9919699fec..2b33a3d8fdb86024acb2a3ee9d0a4a7dd4989c98 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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@@ -568,6 +568,7 @@ public class ServerChunkCache extends ChunkSource {
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boolean flag1 = this.level.ticksPerSpawnCategory.getLong(org.bukkit.entity.SpawnCategory.ANIMAL) != 0L && this.level.getLevelData().getGameTime() % this.level.ticksPerSpawnCategory.getLong(org.bukkit.entity.SpawnCategory.ANIMAL) == 0L; // CraftBukkit
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Iterator iterator1 = list.iterator();
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+ int chunksTicked = 0; // Paper
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while (iterator1.hasNext()) {
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ServerChunkCache.ChunkAndHolder chunkproviderserver_a = (ServerChunkCache.ChunkAndHolder) iterator1.next();
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LevelChunk chunk1 = chunkproviderserver_a.chunk;
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@@ -581,6 +582,7 @@ public class ServerChunkCache extends ChunkSource {
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if (this.level.shouldTickBlocksAt(chunkcoordintpair.toLong())) {
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this.level.tickChunk(chunk1, l);
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+ if ((chunksTicked++ & 1) == 0) net.minecraft.server.MinecraftServer.getServer().executeMidTickTasks(); // Paper
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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/ServerLevel.java b/src/main/java/net/minecraft/server/level/ServerLevel.java
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index 4f2d30e8ffe228952db64d0122a8958e33f841fa..160d340b6b9a054091897a728e4dbc73bb62ab96 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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@@ -216,6 +216,7 @@ public class ServerLevel extends Level implements WorldGenLevel {
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private final StructureCheck structureCheck;
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private final boolean tickTime;
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private final RandomSequences randomSequences;
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+ public long lastMidTickExecuteFailure; // Paper - execute chunk tasks mid tick
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// CraftBukkit start
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public final LevelStorageSource.LevelStorageAccess convertable;
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@@ -1205,6 +1206,7 @@ public class ServerLevel extends Level implements WorldGenLevel {
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if (fluid1.is(fluid)) {
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fluid1.tick(this, pos);
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}
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+ MinecraftServer.getServer().executeMidTickTasks(); // Paper - exec chunk tasks during world tick
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}
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@@ -1214,6 +1216,7 @@ public class ServerLevel extends Level implements WorldGenLevel {
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if (iblockdata.is(block)) {
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iblockdata.tick(this, pos, this.random);
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}
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+ MinecraftServer.getServer().executeMidTickTasks(); // Paper - exec chunk tasks during world tick
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}
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diff --git a/src/main/java/net/minecraft/world/level/Level.java b/src/main/java/net/minecraft/world/level/Level.java
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index 44d81cacbe3ec878f3af02f4fad974d75fc4db9e..e64431d524f83897d8ff7f5adc27ddef58cd46df 100644
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--- a/src/main/java/net/minecraft/world/level/Level.java
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+++ b/src/main/java/net/minecraft/world/level/Level.java
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@@ -924,6 +924,11 @@ public abstract class Level implements LevelAccessor, AutoCloseable {
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// Spigot end
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} else if (flag && this.shouldTickBlocksAt(tickingblockentity.getPos())) {
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tickingblockentity.tick();
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+ // Paper start - execute chunk tasks during tick
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+ if ((this.tileTickPosition & 7) == 0) {
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+ MinecraftServer.getServer().executeMidTickTasks();
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+ }
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+ // Paper end - execute chunk tasks during tick
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}
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}
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this.blockEntityTickers.removeAll(toRemove); // Paper - Fix MC-117075
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@@ -938,6 +943,7 @@ public abstract class Level implements LevelAccessor, AutoCloseable {
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public <T extends Entity> void guardEntityTick(Consumer<T> tickConsumer, T entity) {
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try {
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tickConsumer.accept(entity);
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+ MinecraftServer.getServer().executeMidTickTasks(); // Paper - execute chunk tasks mid tick
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} catch (Throwable throwable) {
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if (throwable instanceof ThreadDeath) throw throwable; // Paper
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// Paper start - Prevent block entity and entity crashes
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