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b31089a929
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: d264e972 #591: Add option for a consumer before spawning an item 1c537fce #590: Add spawn and transform reasons for piglin zombification. CraftBukkit Changes: ee5006d1 #810: Add option for a consumer before spawning an item f6a39d3c #809: Add spawn and transform reasons for piglin zombification. 0c24068a Organise imports Spigot Changes: bff52619 Organise imports
100 lines
4.9 KiB
Diff
100 lines
4.9 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Aikar <aikar@aikar.co>
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Date: Tue, 23 Oct 2018 23:14:38 -0400
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Subject: [PATCH] Improve Server Thread Pool and Thread Priorities
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Use a simple executor since Fork join is a much more complex pool
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type and we are not using its capabilities.
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Set thread priorities so main thread has above normal priority over
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server threads
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Allow usage of a single thread executor by not using ForkJoin so single core CPU's.
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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 c24397d2ded7d3ea6f7440035ed64d29602900a6..518e15e6a4b7750e90a958686bcd930c351f5e1c 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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@@ -177,6 +177,7 @@ public abstract class MinecraftServer extends IAsyncTaskHandlerReentrant<TickTas
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S s0 = function.apply(thread); // CraftBukkit - decompile error
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atomicreference.set(s0);
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+ thread.setPriority(Thread.NORM_PRIORITY+2); // Paper - boost priority
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thread.start();
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return s0;
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}
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diff --git a/src/main/java/net/minecraft/server/ServerWorkerThread.java b/src/main/java/net/minecraft/server/ServerWorkerThread.java
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new file mode 100644
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index 0000000000000000000000000000000000000000..6c4c4171baf18a58667e3882e47fc23293d4fc1c
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--- /dev/null
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+++ b/src/main/java/net/minecraft/server/ServerWorkerThread.java
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@@ -0,0 +1,13 @@
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+package net.minecraft.server;
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+
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+import java.util.concurrent.atomic.AtomicInteger;
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+
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+public class ServerWorkerThread extends Thread {
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+ private static final AtomicInteger threadId = new AtomicInteger(1);
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+ public ServerWorkerThread(Runnable target, String poolName, int prioritityModifier) {
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+ super(target, "Worker-" + poolName + "-" + threadId.getAndIncrement());
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+ setPriority(Thread.NORM_PRIORITY+prioritityModifier); // Deprioritize over main
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+ this.setDaemon(true);
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+ this.setUncaughtExceptionHandler(SystemUtils::onThreadError);
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+ }
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+}
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diff --git a/src/main/java/net/minecraft/server/SystemUtils.java b/src/main/java/net/minecraft/server/SystemUtils.java
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index cc14e4b4609fa7013df666181c0e02a53970c123..1fe1df445ba56b2f176ee25502a774aa0a7bd00b 100644
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--- a/src/main/java/net/minecraft/server/SystemUtils.java
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+++ b/src/main/java/net/minecraft/server/SystemUtils.java
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@@ -48,8 +48,8 @@ import org.apache.logging.log4j.Logger;
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public class SystemUtils {
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private static final AtomicInteger c = new AtomicInteger(1);
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- private static final ExecutorService d = a("Bootstrap");
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- private static final ExecutorService e = a("Main");
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+ private static final ExecutorService d = a("Bootstrap", -2); // Paper - add -2 priority
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+ private static final ExecutorService e = a("Main", -1); // Paper - add -1 priority
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private static final ExecutorService f = n();
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public static LongSupplier a = System::nanoTime;
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public static final UUID b = new UUID(0L, 0L); public static final UUID getNullUUID() {return b;} // Paper OBFHELPER
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@@ -79,15 +79,18 @@ public class SystemUtils {
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return Instant.now().toEpochMilli();
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}
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- private static ExecutorService a(String s) {
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- int i = MathHelper.clamp(Runtime.getRuntime().availableProcessors() - 1, 1, 7);
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- Object object;
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+ private static ExecutorService a(String s, int priorityModifier) { // Paper - add priority
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+ // Paper start - use simpler thread pool that allows 1 thread
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+ int i = Math.min(8, Math.max(Runtime.getRuntime().availableProcessors() - 2, 1));
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+ i = Integer.getInteger("Paper.WorkerThreadCount", i);
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+ ExecutorService object;
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if (i <= 0) {
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object = MoreExecutors.newDirectExecutorService();
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} else {
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- object = new ForkJoinPool(i, (forkjoinpool) -> {
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- ForkJoinWorkerThread forkjoinworkerthread = new ForkJoinWorkerThread(forkjoinpool) {
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+ object = new java.util.concurrent.ThreadPoolExecutor(i, i,0L, TimeUnit.MILLISECONDS, new java.util.concurrent.LinkedBlockingQueue<Runnable>(), target -> new ServerWorkerThread(target, s, priorityModifier));
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+ }
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+ /*
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protected void onTermination(Throwable throwable) {
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if (throwable != null) {
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SystemUtils.LOGGER.warn("{} died", this.getName(), throwable);
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@@ -103,6 +106,7 @@ public class SystemUtils {
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return forkjoinworkerthread;
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}, SystemUtils::a, true);
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}
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+ }*/ // Paper end
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return (ExecutorService) object;
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}
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@@ -151,6 +155,7 @@ public class SystemUtils {
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});
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}
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+ public static void onThreadError(Thread thread, Throwable throwable) { a(thread, throwable); } // Paper - OBFHELPER
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private static void a(Thread thread, Throwable throwable) {
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c(throwable);
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if (throwable instanceof CompletionException) {
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