geforkt von Mirrors/Paper
92 Zeilen
4.8 KiB
Diff
92 Zeilen
4.8 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/io/papermc/paper/util/ServerWorkerThread.java b/src/main/java/io/papermc/paper/util/ServerWorkerThread.java
|
|
new file mode 100644
|
|
index 0000000000000000000000000000000000000000..b60f59cf5cc8eb84a6055b7861857dece7f2501b
|
|
--- /dev/null
|
|
+++ b/src/main/java/io/papermc/paper/util/ServerWorkerThread.java
|
|
@@ -0,0 +1,14 @@
|
|
+package io.papermc.paper.util;
|
|
+
|
|
+import java.util.concurrent.atomic.AtomicInteger;
|
|
+import net.minecraft.Util;
|
|
+
|
|
+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(Util::onThreadException);
|
|
+ }
|
|
+}
|
|
diff --git a/src/main/java/net/minecraft/Util.java b/src/main/java/net/minecraft/Util.java
|
|
index 336a26733b5bf73455f8ec10347c1e08b8e866f7..0773447354542925826369625f21e26aa30ebff4 100644
|
|
--- a/src/main/java/net/minecraft/Util.java
|
|
+++ b/src/main/java/net/minecraft/Util.java
|
|
@@ -79,8 +79,8 @@ public class Util {
|
|
private static final int DEFAULT_MAX_THREADS = 255;
|
|
private static final String MAX_THREADS_SYSTEM_PROPERTY = "max.bg.threads";
|
|
private static final AtomicInteger WORKER_COUNT = new AtomicInteger(1);
|
|
- private static final ExecutorService BOOTSTRAP_EXECUTOR = makeExecutor("Bootstrap");
|
|
- private static final ExecutorService BACKGROUND_EXECUTOR = makeExecutor("Main");
|
|
+ private static final ExecutorService BOOTSTRAP_EXECUTOR = makeExecutor("Bootstrap", -2); // Paper - add -2 priority
|
|
+ private static final ExecutorService BACKGROUND_EXECUTOR = makeExecutor("Main", -1); // Paper - add -1 priority
|
|
// Paper start - don't submit BLOCKING PROFILE LOOKUPS to the world gen thread
|
|
public static final ExecutorService PROFILE_EXECUTOR = Executors.newFixedThreadPool(2, new java.util.concurrent.ThreadFactory() {
|
|
|
|
@@ -143,14 +143,18 @@ public class Util {
|
|
return FILENAME_DATE_TIME_FORMATTER.format(ZonedDateTime.now());
|
|
}
|
|
|
|
- private static ExecutorService makeExecutor(String name) {
|
|
- int i = Mth.clamp(Runtime.getRuntime().availableProcessors() - 1, 1, getMaxThreads());
|
|
+ private static ExecutorService makeExecutor(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 executorService;
|
|
+
|
|
if (i <= 0) {
|
|
executorService = MoreExecutors.newDirectExecutorService();
|
|
} else {
|
|
- executorService = new ForkJoinPool(i, (forkJoinPool) -> {
|
|
- ForkJoinWorkerThread forkJoinWorkerThread = new ForkJoinWorkerThread(forkJoinPool) {
|
|
+ executorService = new java.util.concurrent.ThreadPoolExecutor(i, i,0L, TimeUnit.MILLISECONDS, new java.util.concurrent.LinkedBlockingQueue<Runnable>(), target -> new io.papermc.paper.util.ServerWorkerThread(target, s, priorityModifier));
|
|
+ }
|
|
+ /*
|
|
@Override
|
|
protected void onTermination(Throwable throwable) {
|
|
if (throwable != null) {
|
|
@@ -166,6 +170,7 @@ public class Util {
|
|
return forkJoinWorkerThread;
|
|
}, Util::onThreadException, true);
|
|
}
|
|
+ }*/ // Paper end
|
|
|
|
return executorService;
|
|
}
|
|
diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
|
|
index 25aac194eb486a5b8707aa0a655fd8259ad7409c..6afa9ab5cb864ff286341582d6d70648d8a86efb 100644
|
|
--- a/src/main/java/net/minecraft/server/MinecraftServer.java
|
|
+++ b/src/main/java/net/minecraft/server/MinecraftServer.java
|
|
@@ -306,6 +306,7 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
|
|
S s0 = serverFactory.apply(thread); // CraftBukkit - decompile error
|
|
|
|
atomicreference.set(s0);
|
|
+ thread.setPriority(Thread.NORM_PRIORITY+2); // Paper - boost priority
|
|
thread.start();
|
|
return s0;
|
|
}
|