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DivineMC/divinemc-server/minecraft-patches/features/0051-C2ME-Limit-NBT-cache.patch
wiyba 6e0570e215 Updated Upstream (Purpur)
Upstream has released updates that appear to apply and compile correctly

Purpur Changes:
2025-10-31 15:33:03 +03:00

55 lines
2.9 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: NONPLAYT <76615486+NONPLAYT@users.noreply.github.com>
Date: Wed, 9 Jul 2025 04:37:59 +0300
Subject: [PATCH] C2ME: Limit NBT cache
This patch is based on the following mixins:
* "com/ishland/c2me/opts/chunkio/mixin/limit_nbt_cache/MixinStorageIoWorker.java"
By: ishland <ishlandmc@yeah.net>
As part of: C2ME (https://github.com/RelativityMC/C2ME-fabric)
Licensed under: MIT (https://opensource.org/licenses/MIT)
diff --git a/net/minecraft/world/level/chunk/storage/IOWorker.java b/net/minecraft/world/level/chunk/storage/IOWorker.java
index 27e1edbd8d8ffd80c1a3df17bc47f4a6936619f7..c3326e753ecf8a0ba1930d8c7573ebd2c594cf45 100644
--- a/net/minecraft/world/level/chunk/storage/IOWorker.java
+++ b/net/minecraft/world/level/chunk/storage/IOWorker.java
@@ -212,7 +212,38 @@ public class IOWorker implements ChunkScanAccess, AutoCloseable {
});
}
+ // DivineMC start - C2ME: Limit NBT cache
+ private void checkHardLimit() {
+ if (this.pendingWrites.size() >= org.bxteam.divinemc.config.DivineConfig.PerformanceCategory.chunkDataCacheLimit) {
+ LOGGER.warn("Chunk data cache size exceeded hard limit ({} >= {}), forcing writes to disk (you can increase chunkDataCacheLimit in divinemc.yml)", this.pendingWrites.size(), org.bxteam.divinemc.config.DivineConfig.PerformanceCategory.chunkDataCacheLimit);
+ while (this.pendingWrites.size() >= org.bxteam.divinemc.config.DivineConfig.PerformanceCategory.chunkDataCacheSoftLimit * 0.75) {
+ writeResult0();
+ }
+ }
+ }
+
+ private void writeResult0() {
+ java.util.Iterator<java.util.Map.Entry<net.minecraft.world.level.ChunkPos, net.minecraft.world.level.chunk.storage.IOWorker.PendingStore>> iterator = this.pendingWrites.entrySet().iterator();
+ if (iterator.hasNext()) {
+ java.util.Map.Entry<ChunkPos, IOWorker.PendingStore> entry = iterator.next();
+ iterator.remove();
+ this.runStore(entry.getKey(), entry.getValue());
+ }
+ }
+ // DivineMC end - C2ME: Limit NBT cache
+
private void storePendingChunk() {
+ // DivineMC start - C2ME: Limit NBT cache
+ if (!this.pendingWrites.isEmpty()) {
+ checkHardLimit();
+ if (this.pendingWrites.size() >= org.bxteam.divinemc.config.DivineConfig.PerformanceCategory.chunkDataCacheSoftLimit) {
+ int writeFrequency = Math.min(1, (this.pendingWrites.size() - (int) org.bxteam.divinemc.config.DivineConfig.PerformanceCategory.chunkDataCacheSoftLimit) / 16);
+ for (int i = 0; i < writeFrequency; i++) {
+ writeResult0();
+ }
+ }
+ }
+ // DivineMC end - C2ME: Limit NBT cache
Entry<ChunkPos, IOWorker.PendingStore> entry = this.pendingWrites.pollFirstEntry();
if (entry != null) {
this.runStore(entry.getKey(), entry.getValue());