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0f1a8717e8
Patch documentation to come Issues with the old system that are fixed now: - World generation does not scale with cpu cores effectively. - Relies on the main thread for scheduling and maintaining chunk state, dropping chunk load/generate rates at lower tps. - Unreliable prioritisation of chunk gen/load calls that block the main thread. - Shutdown logic is utterly unreliable, as it has to wait for all chunks to unload - is it guaranteed that the chunk system is in a state on shutdown that it can reliably do this? Watchdog shutdown also typically failed due to thread checks, which is now resolved. - Saving of data is not unified (i.e can save chunk data without saving entity data, poses problems for desync if shutdown is really abnormal. - Entities are not loaded with chunks. This caused quite a bit of headache for Chunk#getEntities API, but now the new chunk system loads entities with chunks so that they are ready whenever the chunk loads in. Effectively brings the behavior back to 1.16 era, but still storing entities in their own separate regionfiles. The above list is not complete. The patch documentation will complete it. New chunk system hard relies on starlight and dataconverter, and most importantly the new concurrent utilities in ConcurrentUtil. Some of the old async chunk i/o interface (i.e the old file io thread reroutes _some_ calls to the new file io thread) is kept for plugin compat reasons. It will be removed in the next major version of minecraft. The old legacy chunk system patches have been moved to the removed folder in case we need them again.
94 lines
5.1 KiB
Diff
94 lines
5.1 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: Wed, 3 Jun 2020 11:37:13 -0700
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Subject: [PATCH] Optimise getType calls
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Remove the map lookup for converting from Block->Bukkit Material
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diff --git a/src/main/java/net/minecraft/world/level/block/state/BlockState.java b/src/main/java/net/minecraft/world/level/block/state/BlockState.java
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index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
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--- a/src/main/java/net/minecraft/world/level/block/state/BlockState.java
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+++ b/src/main/java/net/minecraft/world/level/block/state/BlockState.java
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@@ -0,0 +0,0 @@ import net.minecraft.world.level.block.state.properties.Property;
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public class BlockState extends BlockBehaviour.BlockStateBase {
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public static final Codec<BlockState> CODEC = codec(Registry.BLOCK.byNameCodec(), Block::defaultBlockState).stable();
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+ // Paper start - optimise getType calls
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+ org.bukkit.Material cachedMaterial;
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+
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+ public final org.bukkit.Material getBukkitMaterial() {
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+ if (this.cachedMaterial == null) {
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+ this.cachedMaterial = org.bukkit.craftbukkit.util.CraftMagicNumbers.getMaterial(this.getBlock());
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+ }
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+
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+ return this.cachedMaterial;
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+ }
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+ // Paper end - optimise getType calls
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public BlockState(Block block, ImmutableMap<Property<?>, Comparable<?>> propertyMap, MapCodec<BlockState> codec) {
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super(block, propertyMap, codec);
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}
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diff --git a/src/main/java/org/bukkit/craftbukkit/CraftChunkSnapshot.java b/src/main/java/org/bukkit/craftbukkit/CraftChunkSnapshot.java
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index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
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--- a/src/main/java/org/bukkit/craftbukkit/CraftChunkSnapshot.java
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+++ b/src/main/java/org/bukkit/craftbukkit/CraftChunkSnapshot.java
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@@ -0,0 +0,0 @@ public class CraftChunkSnapshot implements ChunkSnapshot {
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public Material getBlockType(int x, int y, int z) {
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this.validateChunkCoordinates(x, y, z);
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- return CraftMagicNumbers.getMaterial(this.blockids[this.getSectionIndex(y)].get(x, y & 0xF, z).getBlock());
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+ return this.blockids[this.getSectionIndex(y)].get(x, y & 0xF, z).getBukkitMaterial(); // Paper - optimise getType calls
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}
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@Override
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diff --git a/src/main/java/org/bukkit/craftbukkit/block/CraftBlock.java b/src/main/java/org/bukkit/craftbukkit/block/CraftBlock.java
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index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
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--- a/src/main/java/org/bukkit/craftbukkit/block/CraftBlock.java
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+++ b/src/main/java/org/bukkit/craftbukkit/block/CraftBlock.java
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@@ -0,0 +0,0 @@ public class CraftBlock implements Block {
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@Override
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public Material getType() {
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- return CraftMagicNumbers.getMaterial(this.world.getBlockState(position).getBlock());
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+ return this.world.getBlockState(this.position).getBukkitMaterial(); // Paper - optimise getType calls
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}
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@Override
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diff --git a/src/main/java/org/bukkit/craftbukkit/block/CraftBlockState.java b/src/main/java/org/bukkit/craftbukkit/block/CraftBlockState.java
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index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
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--- a/src/main/java/org/bukkit/craftbukkit/block/CraftBlockState.java
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+++ b/src/main/java/org/bukkit/craftbukkit/block/CraftBlockState.java
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@@ -0,0 +0,0 @@ public class CraftBlockState implements BlockState {
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@Override
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public Material getType() {
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- return CraftMagicNumbers.getMaterial(this.data.getBlock());
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+ return this.data.getBukkitMaterial(); // Paper - optimise getType calls
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}
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public void setFlag(int flag) {
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diff --git a/src/main/java/org/bukkit/craftbukkit/block/data/CraftBlockData.java b/src/main/java/org/bukkit/craftbukkit/block/data/CraftBlockData.java
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index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
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--- a/src/main/java/org/bukkit/craftbukkit/block/data/CraftBlockData.java
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+++ b/src/main/java/org/bukkit/craftbukkit/block/data/CraftBlockData.java
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@@ -0,0 +0,0 @@ public class CraftBlockData implements BlockData {
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@Override
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public Material getMaterial() {
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- return CraftMagicNumbers.getMaterial(this.state.getBlock());
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+ return this.state.getBukkitMaterial(); // Paper - optimise getType calls
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}
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public BlockState getState() {
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diff --git a/src/main/java/org/bukkit/craftbukkit/generator/CraftChunkData.java b/src/main/java/org/bukkit/craftbukkit/generator/CraftChunkData.java
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index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
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--- a/src/main/java/org/bukkit/craftbukkit/generator/CraftChunkData.java
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+++ b/src/main/java/org/bukkit/craftbukkit/generator/CraftChunkData.java
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@@ -0,0 +0,0 @@ public final class CraftChunkData implements ChunkGenerator.ChunkData {
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@Override
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public Material getType(int x, int y, int z) {
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- return CraftMagicNumbers.getMaterial(this.getTypeId(x, y, z).getBlock());
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+ return this.getTypeId(x, y, z).getBukkitMaterial(); // Paper - optimise getType calls
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}
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@Override
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