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f44d237de9
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 CraftBukkit Changes: 5be41fb8 SPIGOT-6720: Fix bed explosion checks 09b99daf SPIGOT-6722: Close entity manager when unloading world 3a9561bf SPIGOT-6686: Changes in MaximumRepairCost for Anvil Rename cause inconsistency
65 lines
4.3 KiB
Diff
65 lines
4.3 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Spottedleaf <Spottedleaf@users.noreply.github.com>
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Date: Sun, 8 Aug 2021 16:26:46 -0700
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Subject: [PATCH] Do not submit profile lookups to worldgen threads
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They block. On network I/O.
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If enough tasks are submitted the server will eventually stall
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out due to a sync load, as the worldgen threads will be
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stalling on profile lookups.
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diff --git a/src/main/java/net/minecraft/Util.java b/src/main/java/net/minecraft/Util.java
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index 59437f04911662f06596ef61b91017caa6427eec..69faebb95924946f648cf9f86ff777d3274e3f28 100644
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--- a/src/main/java/net/minecraft/Util.java
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+++ b/src/main/java/net/minecraft/Util.java
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@@ -67,6 +67,22 @@ public class Util {
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private static final AtomicInteger WORKER_COUNT = new AtomicInteger(1);
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private static final ExecutorService BOOTSTRAP_EXECUTOR = makeExecutor("Bootstrap", -2); // Paper - add -2 priority
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private static final ExecutorService BACKGROUND_EXECUTOR = makeExecutor("Main", -1); // Paper - add -1 priority
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+ // Paper start - don't submit BLOCKING PROFILE LOOKUPS to the world gen thread
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+ public static final ExecutorService PROFILE_EXECUTOR = Executors.newFixedThreadPool(2, new java.util.concurrent.ThreadFactory() {
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+
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+ private final AtomicInteger count = new AtomicInteger();
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+
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+ @Override
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+ public Thread newThread(Runnable run) {
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+ Thread ret = new Thread(run);
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+ ret.setName("Profile Lookup Executor #" + this.count.getAndIncrement());
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+ ret.setUncaughtExceptionHandler((Thread thread, Throwable throwable) -> {
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+ LOGGER.fatal("Uncaught exception in thread " + thread.getName(), throwable);
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+ });
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+ return ret;
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+ }
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+ });
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+ // Paper end - don't submit BLOCKING PROFILE LOOKUPS to the world gen thread
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private static final ExecutorService IO_POOL = makeIoExecutor();
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public static LongSupplier timeSource = System::nanoTime;
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public static final UUID NIL_UUID = new UUID(0L, 0L);
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diff --git a/src/main/java/net/minecraft/server/players/GameProfileCache.java b/src/main/java/net/minecraft/server/players/GameProfileCache.java
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index 66dfa8c844963091b63e1f2f85d0da6dd2cd083c..f5b8ff3032e46173c0e8920efb336b9901331259 100644
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--- a/src/main/java/net/minecraft/server/players/GameProfileCache.java
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+++ b/src/main/java/net/minecraft/server/players/GameProfileCache.java
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@@ -200,7 +200,7 @@ public class GameProfileCache {
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} else {
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this.requests.put(username, CompletableFuture.supplyAsync(() -> {
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return this.get(username);
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- }, Util.backgroundExecutor()).whenCompleteAsync((optional, throwable) -> {
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+ }, Util.PROFILE_EXECUTOR).whenCompleteAsync((optional, throwable) -> { // Paper - not a good idea to use BLOCKING OPERATIONS on the worldgen executor
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this.requests.remove(username);
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}, this.executor).whenCompleteAsync((optional, throwable) -> {
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consumer.accept(optional);
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diff --git a/src/main/java/net/minecraft/world/level/block/entity/SkullBlockEntity.java b/src/main/java/net/minecraft/world/level/block/entity/SkullBlockEntity.java
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index 6381544b0038de9a09c01238638e4e127e4eddc6..f61c313195c3d16d996721b2f8cd0d9a10ce1aaf 100644
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--- a/src/main/java/net/minecraft/world/level/block/entity/SkullBlockEntity.java
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+++ b/src/main/java/net/minecraft/world/level/block/entity/SkullBlockEntity.java
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@@ -150,7 +150,7 @@ public class SkullBlockEntity extends BlockEntity {
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public static void updateGameprofile(@Nullable GameProfile owner, Consumer<GameProfile> callback) {
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if (owner != null && !StringUtil.isNullOrEmpty(owner.getName()) && (!owner.isComplete() || !owner.getProperties().containsKey("textures")) && profileCache != null && sessionService != null) {
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profileCache.getAsync(owner.getName(), (profile) -> {
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- Util.backgroundExecutor().execute(() -> {
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+ Util.PROFILE_EXECUTOR.execute(() -> { // Paper - not a good idea to use BLOCKING OPERATIONS on the worldgen executor
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Util.ifElse(profile, (profilex) -> {
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Property property = Iterables.getFirst(profilex.getProperties().get("textures"), (Property)null);
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if (property == null) {
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