mirror of
https://github.com/PaperMC/Paper.git
synced 2024-11-01 00:10:32 +01:00
177 lines
9.1 KiB
Diff
177 lines
9.1 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
|
|
From: Spottedleaf <Spottedleaf@users.noreply.github.com>
|
|
Date: Mon, 6 Apr 2020 04:20:44 -0700
|
|
Subject: [PATCH] Execute chunk tasks mid-tick
|
|
|
|
This will help the server load chunks if tick times are high.
|
|
|
|
diff --git a/src/main/java/co/aikar/timings/MinecraftTimings.java b/src/main/java/co/aikar/timings/MinecraftTimings.java
|
|
index 6b3cde6d4d1e63bec01f502f2027ee9fddac08aa..46449728f69ee7d4f78470f8da23c055acd53a3b 100644
|
|
--- a/src/main/java/co/aikar/timings/MinecraftTimings.java
|
|
+++ b/src/main/java/co/aikar/timings/MinecraftTimings.java
|
|
@@ -48,6 +48,8 @@ public final class MinecraftTimings {
|
|
public static final Timing antiXrayObfuscateTimer = Timings.ofSafe("anti-xray - obfuscate");
|
|
public static final Timing scoreboardScoreSearch = Timings.ofSafe("Scoreboard score search"); // Paper - add timings for scoreboard search
|
|
|
|
+ public static final Timing midTickChunkTasks = Timings.ofSafe("Mid Tick Chunk Tasks");
|
|
+
|
|
private static final Map<Class<?>, String> taskNameCache = new MapMaker().weakKeys().makeMap();
|
|
|
|
private MinecraftTimings() {}
|
|
diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
|
|
index f31fcf3054b201e52ee84b9523820dc619762eef..2cd2e260e9a958c8aee7b2fb4e010ef8fc600f53 100644
|
|
--- a/src/main/java/net/minecraft/server/MinecraftServer.java
|
|
+++ b/src/main/java/net/minecraft/server/MinecraftServer.java
|
|
@@ -1414,8 +1414,79 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
|
|
return flag;
|
|
}
|
|
|
|
+ // Paper start - execute chunk tasks mid tick
|
|
+ static final long CHUNK_TASK_QUEUE_BACKOFF_MIN_TIME = 25L * 1000L; // 25us
|
|
+ static final long MAX_CHUNK_EXEC_TIME = 1000L; // 1us
|
|
+
|
|
+ static final long TASK_EXECUTION_FAILURE_BACKOFF = 5L * 1000L; // 5us
|
|
+
|
|
+ private static long lastMidTickExecute;
|
|
+ private static long lastMidTickExecuteFailure;
|
|
+
|
|
+ private boolean tickMidTickTasks() {
|
|
+ // give all worlds a fair chance at by targetting them all.
|
|
+ // if we execute too many tasks, that's fine - we have logic to correctly handle overuse of allocated time.
|
|
+ boolean executed = false;
|
|
+ for (ServerLevel world : this.getAllLevels()) {
|
|
+ long currTime = System.nanoTime();
|
|
+ if (currTime - world.lastMidTickExecuteFailure <= TASK_EXECUTION_FAILURE_BACKOFF) {
|
|
+ continue;
|
|
+ }
|
|
+ if (!world.getChunkSource().pollTask()) {
|
|
+ // we need to back off if this fails
|
|
+ world.lastMidTickExecuteFailure = currTime;
|
|
+ } else {
|
|
+ executed = true;
|
|
+ }
|
|
+ }
|
|
+
|
|
+ return executed;
|
|
+ }
|
|
+
|
|
+ public final void executeMidTickTasks() {
|
|
+ org.spigotmc.AsyncCatcher.catchOp("mid tick chunk task execution");
|
|
+ long startTime = System.nanoTime();
|
|
+ if ((startTime - lastMidTickExecute) <= CHUNK_TASK_QUEUE_BACKOFF_MIN_TIME || (startTime - lastMidTickExecuteFailure) <= TASK_EXECUTION_FAILURE_BACKOFF) {
|
|
+ // it's shown to be bad to constantly hit the queue (chunk loads slow to a crawl), even if no tasks are executed.
|
|
+ // so, backoff to prevent this
|
|
+ return;
|
|
+ }
|
|
+
|
|
+ co.aikar.timings.MinecraftTimings.midTickChunkTasks.startTiming();
|
|
+ try {
|
|
+ for (;;) {
|
|
+ boolean moreTasks = this.tickMidTickTasks();
|
|
+ long currTime = System.nanoTime();
|
|
+ long diff = currTime - startTime;
|
|
+
|
|
+ if (!moreTasks || diff >= MAX_CHUNK_EXEC_TIME) {
|
|
+ if (!moreTasks) {
|
|
+ lastMidTickExecuteFailure = currTime;
|
|
+ }
|
|
+
|
|
+ // note: negative values reduce the time
|
|
+ long overuse = diff - MAX_CHUNK_EXEC_TIME;
|
|
+ if (overuse >= (10L * 1000L * 1000L)) { // 10ms
|
|
+ // make sure something like a GC or dumb plugin doesn't screw us over...
|
|
+ overuse = 10L * 1000L * 1000L; // 10ms
|
|
+ }
|
|
+
|
|
+ double overuseCount = (double)overuse/(double)MAX_CHUNK_EXEC_TIME;
|
|
+ long extraSleep = (long)Math.round(overuseCount*CHUNK_TASK_QUEUE_BACKOFF_MIN_TIME);
|
|
+
|
|
+ lastMidTickExecute = currTime + extraSleep;
|
|
+ return;
|
|
+ }
|
|
+ }
|
|
+ } finally {
|
|
+ co.aikar.timings.MinecraftTimings.midTickChunkTasks.stopTiming();
|
|
+ }
|
|
+ }
|
|
+ // Paper end - execute chunk tasks mid tick
|
|
+
|
|
private boolean pollTaskInternal() {
|
|
if (super.pollTask()) {
|
|
+ this.executeMidTickTasks(); // Paper - execute chunk tasks mid tick
|
|
return true;
|
|
} else {
|
|
boolean ret = false; // Paper - force execution of all worlds, do not just bias the first
|
|
diff --git a/src/main/java/net/minecraft/server/level/ServerChunkCache.java b/src/main/java/net/minecraft/server/level/ServerChunkCache.java
|
|
index 0b7a38b9e92b19345a34c6226413a9b133264077..18640c8681f6a3b2276123d19e3e8f0a8c630b41 100644
|
|
--- a/src/main/java/net/minecraft/server/level/ServerChunkCache.java
|
|
+++ b/src/main/java/net/minecraft/server/level/ServerChunkCache.java
|
|
@@ -566,6 +566,7 @@ public class ServerChunkCache extends ChunkSource {
|
|
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
|
|
Iterator iterator1 = list.iterator();
|
|
|
|
+ int chunksTicked = 0; // Paper
|
|
while (iterator1.hasNext()) {
|
|
ServerChunkCache.ChunkAndHolder chunkproviderserver_a = (ServerChunkCache.ChunkAndHolder) iterator1.next();
|
|
LevelChunk chunk1 = chunkproviderserver_a.chunk;
|
|
@@ -579,6 +580,7 @@ public class ServerChunkCache extends ChunkSource {
|
|
|
|
if (this.level.shouldTickBlocksAt(chunkcoordintpair.toLong())) {
|
|
this.level.tickChunk(chunk1, l);
|
|
+ if ((chunksTicked++ & 1) == 0) net.minecraft.server.MinecraftServer.getServer().executeMidTickTasks(); // Paper
|
|
}
|
|
}
|
|
}
|
|
diff --git a/src/main/java/net/minecraft/server/level/ServerLevel.java b/src/main/java/net/minecraft/server/level/ServerLevel.java
|
|
index 4b7cad5f551d620dbd091111df94fb39efcb79ac..9cd54bc390f0629bf6b4494bd9c3a6e0927d1b7b 100644
|
|
--- a/src/main/java/net/minecraft/server/level/ServerLevel.java
|
|
+++ b/src/main/java/net/minecraft/server/level/ServerLevel.java
|
|
@@ -221,6 +221,7 @@ public class ServerLevel extends Level implements WorldGenLevel {
|
|
private final StructureCheck structureCheck;
|
|
private final boolean tickTime;
|
|
private final RandomSequences randomSequences;
|
|
+ public long lastMidTickExecuteFailure; // Paper - execute chunk tasks mid tick
|
|
|
|
// CraftBukkit start
|
|
public final LevelStorageSource.LevelStorageAccess convertable;
|
|
@@ -1217,6 +1218,7 @@ public class ServerLevel extends Level implements WorldGenLevel {
|
|
if (fluid1.is(fluid)) {
|
|
fluid1.tick(this, pos);
|
|
}
|
|
+ MinecraftServer.getServer().executeMidTickTasks(); // Paper - exec chunk tasks during world tick
|
|
|
|
}
|
|
|
|
@@ -1226,6 +1228,7 @@ public class ServerLevel extends Level implements WorldGenLevel {
|
|
if (iblockdata.is(block)) {
|
|
iblockdata.tick(this, pos, this.random);
|
|
}
|
|
+ MinecraftServer.getServer().executeMidTickTasks(); // Paper - exec chunk tasks during world tick
|
|
|
|
}
|
|
|
|
diff --git a/src/main/java/net/minecraft/world/level/Level.java b/src/main/java/net/minecraft/world/level/Level.java
|
|
index d3d7abb2d31e8ce9f9c53eca66a83a1c28fec792..dab55ab08665f2b5ae0c899a4ab07c18460552ae 100644
|
|
--- a/src/main/java/net/minecraft/world/level/Level.java
|
|
+++ b/src/main/java/net/minecraft/world/level/Level.java
|
|
@@ -915,6 +915,11 @@ public abstract class Level implements LevelAccessor, AutoCloseable {
|
|
// Spigot end
|
|
} else if (flag && this.shouldTickBlocksAt(tickingblockentity.getPos())) {
|
|
tickingblockentity.tick();
|
|
+ // Paper start - execute chunk tasks during tick
|
|
+ if ((this.tileTickPosition & 7) == 0) {
|
|
+ MinecraftServer.getServer().executeMidTickTasks();
|
|
+ }
|
|
+ // Paper end - execute chunk tasks during tick
|
|
}
|
|
}
|
|
this.blockEntityTickers.removeAll(toRemove); // Paper - Fix MC-117075
|
|
@@ -929,6 +934,7 @@ public abstract class Level implements LevelAccessor, AutoCloseable {
|
|
public <T extends Entity> void guardEntityTick(Consumer<T> tickConsumer, T entity) {
|
|
try {
|
|
tickConsumer.accept(entity);
|
|
+ MinecraftServer.getServer().executeMidTickTasks(); // Paper - execute chunk tasks mid tick
|
|
} catch (Throwable throwable) {
|
|
if (throwable instanceof ThreadDeath) throw throwable; // Paper
|
|
// Paper start - Prevent block entity and entity crashes
|