Files
MiraiMC/patches/server/0019-Better-handling-of-async-tasks.patch
2022-08-23 10:36:35 +02:00

196 lines
9.6 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Simon Gardling <titaniumtown@gmail.com>
Date: Thu, 8 Jul 2021 17:00:21 -0400
Subject: [PATCH] Better handling of async tasks
Original code by Titaniumtown, licensed under GNU General Public License v3.0
You can find the original code on https://gitlab.com/Titaniumtown/JettPack
diff --git a/src/main/java/net/minecraft/server/MCUtil.java b/src/main/java/net/minecraft/server/MCUtil.java
index c0fdc5a79107f8694a514a12d5526bd431fc45e9..eeb20c5b9365a04db45e738793f6c10a4f2b759e 100644
--- a/src/main/java/net/minecraft/server/MCUtil.java
+++ b/src/main/java/net/minecraft/server/MCUtil.java
@@ -53,11 +53,14 @@ import java.util.concurrent.atomic.AtomicBoolean;
import java.util.function.BiConsumer;
import java.util.function.Consumer;
import java.util.function.Supplier;
+import java.util.concurrent.SynchronousQueue; // JettPack
+import java.util.concurrent.ConcurrentLinkedQueue; // JettPack
public final class MCUtil {
+ public static final ConcurrentLinkedQueue smallAsyncTasks = new ConcurrentLinkedQueue(); // JettPack
public static final ThreadPoolExecutor asyncExecutor = new ThreadPoolExecutor(
- 0, 2, 60L, TimeUnit.SECONDS,
- new LinkedBlockingQueue<>(),
+ 4, Integer.MAX_VALUE, 60L, TimeUnit.SECONDS, // JettPack
+ new SynchronousQueue<Runnable>(), // JettPack
new ThreadFactoryBuilder()
.setNameFormat("Paper Async Task Handler Thread - %1$d")
.setUncaughtExceptionHandler(new net.minecraft.DefaultUncaughtExceptionHandlerWithName(MinecraftServer.LOGGER))
@@ -74,6 +77,30 @@ public final class MCUtil {
public static final long INVALID_CHUNK_KEY = getCoordinateKey(Integer.MAX_VALUE, Integer.MAX_VALUE);
+ // JettPack start
+ public static void flushAsyncTasks() {
+ if (!smallAsyncTasks.isEmpty()) {
+ asyncExecutor.submit(() -> {
+ Runnable runnable;
+ while((runnable = (Runnable)smallAsyncTasks.poll()) != null) {
+ runnable.run();
+ }
+ });
+ }
+ }
+
+ public static void flushAsyncTasksMidTick() {
+ int i = smallAsyncTasks.size() < 16 ? smallAsyncTasks.size() : 16; // if smallAsyncTasks is over size 16, only execute 16 tasks
+ asyncExecutor.submit(() -> {
+ Runnable runnable;
+ int i_tmp = 0;
+ while((runnable = (Runnable)smallAsyncTasks.poll()) != null && i_tmp != i-1) {
+ runnable.run();
+ i_tmp += 1;
+ }
+ });
+ }
+ // JettPack end
public static Runnable once(Runnable run) {
AtomicBoolean ran = new AtomicBoolean(false);
diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
index fa185dba873f8a58378a5575bf4086905d2f430c..3cb82a09ff2d588535b60c64bb787e849346e688 100644
--- a/src/main/java/net/minecraft/server/MinecraftServer.java
+++ b/src/main/java/net/minecraft/server/MinecraftServer.java
@@ -1021,6 +1021,7 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<Runnab
LOGGER.info("Flushing Chunk IO");
com.destroystokyo.paper.io.PaperFileIOThread.Holder.INSTANCE.close(true, true); // Paper
LOGGER.info("Closing Thread Pool");
+ MCUtil.flushAsyncTasks(); // JettPack
Util.shutdownExecutors(); // Paper
LOGGER.info("Closing Server");
try {
@@ -1472,6 +1473,7 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<Runnab
io.papermc.paper.util.CachedLists.reset(); // Paper
// Paper start - move executeAll() into full server tick timing
try (co.aikar.timings.Timing ignored = MinecraftTimings.processTasksTimer.startTiming()) {
+ MCUtil.flushAsyncTasks(); // JettPack
this.runAllTasks();
}
// Paper end
@@ -2762,6 +2764,7 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<Runnab
return;
}
+ MCUtil.flushAsyncTasksMidTick(); // JettPack
co.aikar.timings.MinecraftTimings.midTickChunkTasks.startTiming();
try {
for (;;) {
diff --git a/src/main/java/net/minecraft/server/network/ServerLoginPacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerLoginPacketListenerImpl.java
index 58556611709a953eee834fac56c9eb5218044f8d..03f17e568d41f5a4ac3c4bcb72e2fc39a02d7cd5 100644
--- a/src/main/java/net/minecraft/server/network/ServerLoginPacketListenerImpl.java
+++ b/src/main/java/net/minecraft/server/network/ServerLoginPacketListenerImpl.java
@@ -131,6 +131,7 @@ public class ServerLoginPacketListenerImpl implements TickablePacketListener, Se
}
// Paper start - Cache authenticator threads
+ /* // JettPack
private static final AtomicInteger threadId = new AtomicInteger(0);
private static final java.util.concurrent.ExecutorService authenticatorPool = java.util.concurrent.Executors.newCachedThreadPool(
r -> {
@@ -140,7 +141,7 @@ public class ServerLoginPacketListenerImpl implements TickablePacketListener, Se
return ret;
}
- );
+ );*/
// Paper end
// Spigot start
public void initUUID()
@@ -313,7 +314,8 @@ public class ServerLoginPacketListenerImpl implements TickablePacketListener, Se
// Paper end
// Spigot start
// Paper start - Cache authenticator threads
- authenticatorPool.execute(new Runnable() {
+ //authenticatorPool.execute(new Runnable() { // JettPack
+ net.minecraft.server.MCUtil.asyncExecutor.execute(new Runnable() { // JettPack
@Override
public void run() {
try {
@@ -371,7 +373,8 @@ public class ServerLoginPacketListenerImpl implements TickablePacketListener, Se
}
// Paper start - Cache authenticator threads
- authenticatorPool.execute(new Runnable() {
+ //authenticatorPool.execute(new Runnable() { // JettPack
+ net.minecraft.server.MCUtil.asyncExecutor.execute(new Runnable() { // JettPack
public void run() {
GameProfile gameprofile = ServerLoginPacketListenerImpl.this.gameProfile;
@@ -521,7 +524,8 @@ public class ServerLoginPacketListenerImpl implements TickablePacketListener, Se
}
// Proceed with login
- authenticatorPool.execute(() -> {
+ //authenticatorPool.execute(() -> { // JettPack
+ net.minecraft.server.MCUtil.asyncExecutor.execute(() -> { // JettPack
try {
new LoginHandler().fireEvents();
} catch (Exception ex) {
diff --git a/src/main/java/org/bukkit/craftbukkit/scheduler/CraftAsyncScheduler.java b/src/main/java/org/bukkit/craftbukkit/scheduler/CraftAsyncScheduler.java
index 9c1aff17aabd062640e3f451a2ef8c50a7c62f10..29eda0db104fe13fb268ebe0750e5e3e1600efcc 100644
--- a/src/main/java/org/bukkit/craftbukkit/scheduler/CraftAsyncScheduler.java
+++ b/src/main/java/org/bukkit/craftbukkit/scheduler/CraftAsyncScheduler.java
@@ -32,23 +32,29 @@ import java.util.Iterator;
import java.util.List;
import java.util.concurrent.Executor;
import java.util.concurrent.Executors;
+/* // JettPack
import java.util.concurrent.SynchronousQueue;
import java.util.concurrent.ThreadPoolExecutor;
import java.util.concurrent.TimeUnit;
+*/
public class CraftAsyncScheduler extends CraftScheduler {
+ /* // JettPack
private final ThreadPoolExecutor executor = new ThreadPoolExecutor(
4, Integer.MAX_VALUE,30L, TimeUnit.SECONDS, new SynchronousQueue<>(),
new ThreadFactoryBuilder().setNameFormat("Craft Scheduler Thread - %1$d").setUncaughtExceptionHandler(new net.minecraft.DefaultUncaughtExceptionHandlerWithName(net.minecraft.server.MinecraftServer.LOGGER)).build()); // Paper
+ */
private final Executor management = Executors.newSingleThreadExecutor(new ThreadFactoryBuilder()
.setNameFormat("Craft Async Scheduler Management Thread").setUncaughtExceptionHandler(new net.minecraft.DefaultUncaughtExceptionHandlerWithName(net.minecraft.server.MinecraftServer.LOGGER)).build()); // Paper
private final List<CraftTask> temp = new ArrayList<>();
CraftAsyncScheduler() {
super(true);
+ /* // JettPack
executor.allowCoreThreadTimeOut(true);
executor.prestartAllCoreThreads();
+ */
}
@Override
@@ -93,7 +99,8 @@ public class CraftAsyncScheduler extends CraftScheduler {
private boolean executeTask(CraftTask task) {
if (isValid(task)) {
this.runners.put(task.getTaskId(), task);
- this.executor.execute(new ServerSchedulerReportingWrapper(task));
+ //this.executor.execute(new ServerSchedulerReportingWrapper(task));
+ net.minecraft.server.MCUtil.asyncExecutor.execute(new ServerSchedulerReportingWrapper(task)); // JettPack
return true;
}
return false;
diff --git a/src/main/java/org/spigotmc/WatchdogThread.java b/src/main/java/org/spigotmc/WatchdogThread.java
index 413bcdb0389718a73047a114e6f5d05d96bdcf43..4e9ae34c690fed7f5d6c52e39a33a00e7943cedd 100644
--- a/src/main/java/org/spigotmc/WatchdogThread.java
+++ b/src/main/java/org/spigotmc/WatchdogThread.java
@@ -140,6 +140,7 @@ public class WatchdogThread extends Thread
{
while ( !this.stopping )
{
+ net.minecraft.server.MCUtil.flushAsyncTasks(); // JettPack
//
// Paper start
Logger log = Bukkit.getServer().getLogger();