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Paper/Spigot-Server-Patches/0385-Use-ChunkStatus-cache-when-saving-protochunks.patch

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Drop Ignore-Missing-Recipes-in-RecipeBook-to-avoid-data-e.patch This patch appears to be no longer relevant, and is seemingly a leading cause of datapack performance being horrific
2020-03-15 21:03:36 +01:00
From ec3ea5e0e353c0e0da2ef3289d63048cff77b89d Mon Sep 17 00:00:00 2001
Optimize protochunk saving (#2218) Use a chunk status cache to check if we could potentially overwrite a levelchunk. The check could be entirely elided at the risk of overwriting chunk data, however most protochunks should have their corresponding regionfile loaded with their chunk status.
2019-06-22 22:17:40 +02:00
From: Spottedleaf <Spottedleaf@users.noreply.github.com>
Date: Sat, 22 Jun 2019 04:20:47 -0700
Subject: [PATCH] Use ChunkStatus cache when saving protochunks
The cache should contain the chunk status when saving. If not it
will load it.
diff --git a/src/main/java/net/minecraft/server/PlayerChunkMap.java b/src/main/java/net/minecraft/server/PlayerChunkMap.java
Drop Ignore-Missing-Recipes-in-RecipeBook-to-avoid-data-e.patch This patch appears to be no longer relevant, and is seemingly a leading cause of datapack performance being horrific
2020-03-15 21:03:36 +01:00
index 04728dca7..72ae46eab 100644
Optimize protochunk saving (#2218) Use a chunk status cache to check if we could potentially overwrite a levelchunk. The check could be entirely elided at the risk of overwriting chunk data, however most protochunks should have their corresponding regionfile loaded with their chunk status.
2019-06-22 22:17:40 +02:00
--- a/src/main/java/net/minecraft/server/PlayerChunkMap.java
+++ b/src/main/java/net/minecraft/server/PlayerChunkMap.java
Performance patches prerequisite (#2802) Prereq changes for the coming storm of performance patches. Includes optimising incremental saving
2020-01-28 01:16:53 +01:00
@@ -843,8 +843,10 @@ public class PlayerChunkMap extends IChunkLoader implements PlayerChunk.d {
Optimize protochunk saving (#2218) Use a chunk status cache to check if we could potentially overwrite a levelchunk. The check could be entirely elided at the risk of overwriting chunk data, however most protochunks should have their corresponding regionfile loaded with their chunk status.
2019-06-22 22:17:40 +02:00
NBTTagCompound nbttagcompound;
if (chunkstatus.getType() != ChunkStatus.Type.LEVELCHUNK) {
- nbttagcompound = this.readChunkData(chunkcoordintpair);
- if (nbttagcompound != null && ChunkRegionLoader.a(nbttagcompound) == ChunkStatus.Type.LEVELCHUNK) {
+ // Paper start - Optimize save by using status cache
Fix loadChunk(x, z, false) I was not correctly checking if the status was even cached. Actually fix it this time Do not forget about the async chunk placeholder Actually fix it this time I hope No plugin tickets for getChunkAtGen(x, z, boolean) Change ChunkStatus ABI This is required for asynchronous IO. async io will require calls to getChunkStatusIfCached to return the chunk status for a chunk currently queued to save - this cannot be reasonably done with current ABI
2019-07-08 08:52:08 +02:00
+ ChunkStatus statusOnDisk = this.getChunkStatusOnDisk(chunkcoordintpair);
Optimize protochunk saving (#2218) Use a chunk status cache to check if we could potentially overwrite a levelchunk. The check could be entirely elided at the risk of overwriting chunk data, however most protochunks should have their corresponding regionfile loaded with their chunk status.
2019-06-22 22:17:40 +02:00
+ if (statusOnDisk != null && statusOnDisk.getType() == ChunkStatus.Type.LEVELCHUNK) {
+ // Paper end
return false;
}
--
Drop Ignore-Missing-Recipes-in-RecipeBook-to-avoid-data-e.patch This patch appears to be no longer relevant, and is seemingly a leading cause of datapack performance being horrific
2020-03-15 21:03:36 +01:00
2.25.1
Optimize protochunk saving (#2218) Use a chunk status cache to check if we could potentially overwrite a levelchunk. The check could be entirely elided at the risk of overwriting chunk data, however most protochunks should have their corresponding regionfile loaded with their chunk status.
2019-06-22 22:17:40 +02:00
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