100 lines
4.9 KiB
Diff
100 lines
4.9 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
|
|
From: Aikar <aikar@aikar.co>
|
|
Date: Tue, 23 Oct 2018 23:14:38 -0400
|
|
Subject: [PATCH] Improve Server Thread Pool and Thread Priorities
|
|
|
|
Use a simple executor since Fork join is a much more complex pool
|
|
type and we are not using its capabilities.
|
|
|
|
Set thread priorities so main thread has above normal priority over
|
|
server threads
|
|
|
|
Allow usage of a single thread executor by not using ForkJoin so single core CPU's.
|
|
|
|
diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
|
|
index c24397d2ded7d3ea6f7440035ed64d29602900a6..518e15e6a4b7750e90a958686bcd930c351f5e1c 100644
|
|
--- a/src/main/java/net/minecraft/server/MinecraftServer.java
|
|
+++ b/src/main/java/net/minecraft/server/MinecraftServer.java
|
|
@@ -177,6 +177,7 @@ public abstract class MinecraftServer extends IAsyncTaskHandlerReentrant<TickTas
|
|
S s0 = function.apply(thread); // CraftBukkit - decompile error
|
|
|
|
atomicreference.set(s0);
|
|
+ thread.setPriority(Thread.NORM_PRIORITY+2); // Paper - boost priority
|
|
thread.start();
|
|
return s0;
|
|
}
|
|
diff --git a/src/main/java/net/minecraft/server/ServerWorkerThread.java b/src/main/java/net/minecraft/server/ServerWorkerThread.java
|
|
new file mode 100644
|
|
index 0000000000000000000000000000000000000000..6c4c4171baf18a58667e3882e47fc23293d4fc1c
|
|
--- /dev/null
|
|
+++ b/src/main/java/net/minecraft/server/ServerWorkerThread.java
|
|
@@ -0,0 +1,13 @@
|
|
+package net.minecraft.server;
|
|
+
|
|
+import java.util.concurrent.atomic.AtomicInteger;
|
|
+
|
|
+public class ServerWorkerThread extends Thread {
|
|
+ private static final AtomicInteger threadId = new AtomicInteger(1);
|
|
+ public ServerWorkerThread(Runnable target, String poolName, int prioritityModifier) {
|
|
+ super(target, "Worker-" + poolName + "-" + threadId.getAndIncrement());
|
|
+ setPriority(Thread.NORM_PRIORITY+prioritityModifier); // Deprioritize over main
|
|
+ this.setDaemon(true);
|
|
+ this.setUncaughtExceptionHandler(SystemUtils::onThreadError);
|
|
+ }
|
|
+}
|
|
diff --git a/src/main/java/net/minecraft/server/SystemUtils.java b/src/main/java/net/minecraft/server/SystemUtils.java
|
|
index cc14e4b4609fa7013df666181c0e02a53970c123..1fe1df445ba56b2f176ee25502a774aa0a7bd00b 100644
|
|
--- a/src/main/java/net/minecraft/server/SystemUtils.java
|
|
+++ b/src/main/java/net/minecraft/server/SystemUtils.java
|
|
@@ -48,8 +48,8 @@ import org.apache.logging.log4j.Logger;
|
|
public class SystemUtils {
|
|
|
|
private static final AtomicInteger c = new AtomicInteger(1);
|
|
- private static final ExecutorService d = a("Bootstrap");
|
|
- private static final ExecutorService e = a("Main");
|
|
+ private static final ExecutorService d = a("Bootstrap", -2); // Paper - add -2 priority
|
|
+ private static final ExecutorService e = a("Main", -1); // Paper - add -1 priority
|
|
private static final ExecutorService f = n();
|
|
public static LongSupplier a = System::nanoTime;
|
|
public static final UUID b = new UUID(0L, 0L); public static final UUID getNullUUID() {return b;} // Paper OBFHELPER
|
|
@@ -79,15 +79,18 @@ public class SystemUtils {
|
|
return Instant.now().toEpochMilli();
|
|
}
|
|
|
|
- private static ExecutorService a(String s) {
|
|
- int i = MathHelper.clamp(Runtime.getRuntime().availableProcessors() - 1, 1, 7);
|
|
- Object object;
|
|
+ private static ExecutorService a(String s, int priorityModifier) { // Paper - add priority
|
|
+ // Paper start - use simpler thread pool that allows 1 thread
|
|
+ int i = Math.min(8, Math.max(Runtime.getRuntime().availableProcessors() - 2, 1));
|
|
+ i = Integer.getInteger("Paper.WorkerThreadCount", i);
|
|
+ ExecutorService object;
|
|
|
|
if (i <= 0) {
|
|
object = MoreExecutors.newDirectExecutorService();
|
|
} else {
|
|
- object = new ForkJoinPool(i, (forkjoinpool) -> {
|
|
- ForkJoinWorkerThread forkjoinworkerthread = new ForkJoinWorkerThread(forkjoinpool) {
|
|
+ object = new java.util.concurrent.ThreadPoolExecutor(i, i,0L, TimeUnit.MILLISECONDS, new java.util.concurrent.LinkedBlockingQueue<Runnable>(), target -> new ServerWorkerThread(target, s, priorityModifier));
|
|
+ }
|
|
+ /*
|
|
protected void onTermination(Throwable throwable) {
|
|
if (throwable != null) {
|
|
SystemUtils.LOGGER.warn("{} died", this.getName(), throwable);
|
|
@@ -103,6 +106,7 @@ public class SystemUtils {
|
|
return forkjoinworkerthread;
|
|
}, SystemUtils::a, true);
|
|
}
|
|
+ }*/ // Paper end
|
|
|
|
return (ExecutorService) object;
|
|
}
|
|
@@ -151,6 +155,7 @@ public class SystemUtils {
|
|
});
|
|
}
|
|
|
|
+ public static void onThreadError(Thread thread, Throwable throwable) { a(thread, throwable); } // Paper - OBFHELPER
|
|
private static void a(Thread thread, Throwable throwable) {
|
|
c(throwable);
|
|
if (throwable instanceof CompletionException) {
|