PaperMC/patches/server/0133-Do-not-submit-profile-lookups-to-worldgen-threads.patch
Jake Potrebic 526795bacd
Update patches to handle vineflower decompiler (#10406)
* Update patches to handle vineflower decompiler

* update patches again to handle inlined simple lambdas

* update vf again and re-apply/rebuild patches

* update patches after removal of verify-merges flag

* fix compile issue

* remove maven local

* fix some issues

* address more issues

* fix collision patch

* use paperweight release

* more fixes

* update fineflower and fix patches again

* add missing comment descriptor

---------

Co-authored-by: Jason Penilla <11360596+jpenilla@users.noreply.github.com>
2024-04-12 12:14:06 -07:00

77 lines
4.5 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Spottedleaf <Spottedleaf@users.noreply.github.com>
Date: Sun, 8 Aug 2021 16:26:46 -0700
Subject: [PATCH] Do not submit profile lookups to worldgen threads
They block. On network I/O.
If enough tasks are submitted the server will eventually stall
out due to a sync load, as the worldgen threads will be
stalling on profile lookups.
diff --git a/src/main/java/net/minecraft/Util.java b/src/main/java/net/minecraft/Util.java
index 9a12feebbae4a9fdfd24214c2ffa61e717d6e358..1f1422a000eb9a0fb819f26d42b3f39ed683a8da 100644
--- a/src/main/java/net/minecraft/Util.java
+++ b/src/main/java/net/minecraft/Util.java
@@ -91,6 +91,22 @@ public class Util {
private static final ExecutorService BACKGROUND_EXECUTOR = makeExecutor("Main");
private static final ExecutorService IO_POOL = makeIoExecutor("IO-Worker-", false);
private static final ExecutorService DOWNLOAD_POOL = makeIoExecutor("Download-", true);
+ // 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() {
+
+ private final AtomicInteger count = new AtomicInteger();
+
+ @Override
+ public Thread newThread(Runnable run) {
+ Thread ret = new Thread(run);
+ ret.setName("Profile Lookup Executor #" + this.count.getAndIncrement());
+ ret.setUncaughtExceptionHandler((Thread thread, Throwable throwable) -> {
+ LOGGER.error("Uncaught exception in thread " + thread.getName(), throwable);
+ });
+ return ret;
+ }
+ });
+ // Paper end - don't submit BLOCKING PROFILE LOOKUPS to the world gen thread
private static final DateTimeFormatter FILENAME_DATE_TIME_FORMATTER = DateTimeFormatter.ofPattern("yyyy-MM-dd_HH.mm.ss", Locale.ROOT);
private static final int LINEAR_LOOKUP_THRESHOLD = 8;
public static final long NANOS_PER_MILLI = 1000000L;
diff --git a/src/main/java/net/minecraft/server/players/GameProfileCache.java b/src/main/java/net/minecraft/server/players/GameProfileCache.java
index 92c22dc10e385f1942f2ec375bbce9faf257462b..adb472c175cc6f6ced7075a37423d6c898fd5ccb 100644
--- a/src/main/java/net/minecraft/server/players/GameProfileCache.java
+++ b/src/main/java/net/minecraft/server/players/GameProfileCache.java
@@ -169,7 +169,7 @@ public class GameProfileCache {
} else {
CompletableFuture<Optional<GameProfile>> completablefuture1 = CompletableFuture.supplyAsync(() -> {
return this.get(username);
- }, Util.backgroundExecutor()).whenCompleteAsync((optional, throwable) -> {
+ }, Util.PROFILE_EXECUTOR).whenCompleteAsync((optional, throwable) -> { // Paper - don't submit BLOCKING PROFILE LOOKUPS to the world gen thread
this.requests.remove(username);
}, this.executor);
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
index bffc770105800ba78c6d9bfb56ad9ad425f19910..d0b3a836de9830a4da534bedd9f94a16a82ef9c6 100644
--- a/src/main/java/net/minecraft/world/level/block/entity/SkullBlockEntity.java
+++ b/src/main/java/net/minecraft/world/level/block/entity/SkullBlockEntity.java
@@ -80,7 +80,7 @@ public class SkullBlockEntity extends BlockEntity {
} else {
return Optional.empty();
}
- }, Util.backgroundExecutor());
+ }, Util.PROFILE_EXECUTOR); // Paper - don't submit BLOCKING PROFILE LOOKUPS to the world gen thread
}
@Override
diff --git a/src/main/java/org/bukkit/craftbukkit/profile/CraftPlayerProfile.java b/src/main/java/org/bukkit/craftbukkit/profile/CraftPlayerProfile.java
index 358af0121ce3d87a9f51da2bae0699034c1560b4..edd340c66ea8cec1c76ba29f1deab14c4784a7e5 100644
--- a/src/main/java/org/bukkit/craftbukkit/profile/CraftPlayerProfile.java
+++ b/src/main/java/org/bukkit/craftbukkit/profile/CraftPlayerProfile.java
@@ -122,7 +122,7 @@ public final class CraftPlayerProfile implements PlayerProfile {
@Override
public CompletableFuture<PlayerProfile> update() {
- return CompletableFuture.supplyAsync(this::getUpdatedProfile, Util.backgroundExecutor());
+ return CompletableFuture.supplyAsync(this::getUpdatedProfile, Util.PROFILE_EXECUTOR); // Paper - don't submit BLOCKING PROFILE LOOKUPS to the world gen thread
}
private CraftPlayerProfile getUpdatedProfile() {