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Paper/Spigot-Server-Patches/0364-Optimize-Light-Recalculations.patch

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Numerous fixes to entity related changes While it wasn't really "broken" before, if plugins use NMS (which they really should't be) and mess with entity management themselves, and get it wrong, they could ultimately corrupt our state expectations. I've been unable to reproduce any issues locally, but these changes are the result of me analyzing the code pretty deeply and seeing about how to make it more durable to abnormal usage. Any servers seeing oddities, please run with -Ddebug.entities=true and send me any logs triggered.
2019-04-06 05:08:45 +02:00
From 722c4b837cfcb6db6ac546e4d3952b9552d7a56d Mon Sep 17 00:00:00 2001
Optimize Light Recalculations The server triggers light recalculations even if the new block is the same as the old block. At this time, BlockData Properties do not impact light calculations. So the only way light should change, is if the block itself changes from 1 block to another. Additionally, as of 1.13, water now only blocks 1 light level instead of 3, meaning that light level decreasing is the same as air. This means, transitions between water and air also do not need to recalculate light, which saves a TON of updates caused by fluids flowing.
2018-09-29 03:30:03 +02:00
From: Aikar <aikar@aikar.co>
Date: Fri, 28 Sep 2018 20:46:29 -0400
Subject: [PATCH] Optimize Light Recalculations
Remove light optimization getting lots of bug reports on light. just going to drop this even though I really don't see how it could be the source due to my understanding of the games light engine... Fixes #1920
2019-03-28 01:46:46 +01:00
Optimizes to not repeatedly look up the same chunk for
Optimize some light chunk access light calculations repeatedly looks up the same chunk while going down on the Y access. Pass the chunk to it to skip many round trips to the map lookup process. while the gains arent as big since we have last access cache, it should hopefully avoid many callstacks of depth and improve inlining, as well as avoids entering a synchronized code block. The avoiding of entering synchronized section is the main goal here.
2018-10-03 03:55:30 +02:00
light lookups.
Optimize Light Recalculations The server triggers light recalculations even if the new block is the same as the old block. At this time, BlockData Properties do not impact light calculations. So the only way light should change, is if the block itself changes from 1 block to another. Additionally, as of 1.13, water now only blocks 1 light level instead of 3, meaning that light level decreasing is the same as air. This means, transitions between water and air also do not need to recalculate light, which saves a TON of updates caused by fluids flowing.
2018-09-29 03:30:03 +02:00
diff --git a/src/main/java/net/minecraft/server/Chunk.java b/src/main/java/net/minecraft/server/Chunk.java
Numerous fixes to entity related changes While it wasn't really "broken" before, if plugins use NMS (which they really should't be) and mess with entity management themselves, and get it wrong, they could ultimately corrupt our state expectations. I've been unable to reproduce any issues locally, but these changes are the result of me analyzing the code pretty deeply and seeing about how to make it more durable to abnormal usage. Any servers seeing oddities, please run with -Ddebug.entities=true and send me any logs triggered.
2019-04-06 05:08:45 +02:00
index 4f64072a7b..966879a894 100644
Optimize Light Recalculations The server triggers light recalculations even if the new block is the same as the old block. At this time, BlockData Properties do not impact light calculations. So the only way light should change, is if the block itself changes from 1 block to another. Additionally, as of 1.13, water now only blocks 1 light level instead of 3, meaning that light level decreasing is the same as air. This means, transitions between water and air also do not need to recalculate light, which saves a TON of updates caused by fluids flowing.
2018-09-29 03:30:03 +02:00
--- a/src/main/java/net/minecraft/server/Chunk.java
+++ b/src/main/java/net/minecraft/server/Chunk.java
Updated Upstream (Bukkit/CraftBukkit/Spigot) Upstream has released updates that appears to apply and compile correctly. This update has not been tested by PaperMC and as with ANY update, please do your own testing Warning: this commit contains more mapping changes from upstream, As always, ensure that you have working backups and test this build before deployment; Developers working on paper will, yet again, need to delete their work/Minecraft/1.13.2 folder Bukkit Changes: 7fca5fd4 SPIGOT-4558: Preserve user order in the face of copied defaults in configurations 15c9b1eb Ignore spurious slot IDs sent by client, e.g. in enchanting tables 5d2a10c5 SPIGOT-3747: Add API for force loaded chunks d6dd2bb3 SPIGOT-3538: Add getHitBlockFace for ProjectileHitEvent 771db4aa SPIGOT-794: Call EntityPlaceEvent for Minecart placement 55462509 Add InventoryView#getSlotType 2f3ce5b6 Remove EntityTransformEvent and CustomItemTagContainer from draft API f04ad7b6 Make ProjectileLaunchEvent extend EntitySpawnEvent ccb85808 Define EntitySpawnEvent b8cc3ebe Add PlayerItemDamageEvent 184a495d Ease ClassLoader Deadlocks Where Possible 11ac4728 Expand Boolean Prompt Values in Conversation API aae62d51 Added getAllSessionData() to the Conversation API. 9290ff91 Add InventoryView#getInventory API 995e530f Add API to get / set base arrow damage CraftBukkit Changes: c4a67eed SPIGOT-4556: Fix plugins closing inventory during drop events 5be2ddcb Replace version constants with methods to prevent compiler inlining a5b9c7b3 Use API method to create offset command completions 2bc7d1df SPIGOT-3747: Add API for force loaded chunks a408f375 SPIGOT-3538: Add getHitBlockFace for ProjectileHitEvent b54b9409 SPIGOT-2864: Make Arrow / Item setTicksLived behave like FallingBlock 79ded7a8 SPIGOT-1811: Death message not shown on respawn screen b4a4f15d SPIGOT-943: InventoryCloseEvent called on death regardless of open inventory 0afed592 SPIGOT-794: Call EntityPlaceEvent for Minecart placement 2b2d084a Add InventoryView#getSlotType 01a9959a Do not use deprecated ItemSpawnEvent constructor 9642498d SPIGOT-4547: Call EntitySpawnEvent as general spawn fallback event 963f4a5f Add PlayerItemDamageEvent 63db0445 Add API to get / set base arrow damage 531c25d7 Add CraftMagicNumbers.MAPPINGS_VERSION for use by NMS plugins d05c8b14 Mappings Update bd36e200 SPIGOT-4551: Ignore invalid attribute modifier slots Spigot Changes: 518206a1 Remove redundant trove depend 1959ad21 MC-11211,SPIGOT-4552: Fix placing double slabs at y = 255 29ab5e43 SPIGOT-3661: Allow arguments in restart-script 7cc46316 SPIGOT-852: Growth modifiers for beetroots, potatoes, carrots 82e117e1 Squelch "fatal: Resolve operation not in progress" message 0a1a68e7 Mappings Update & Patch Rebuild
2019-01-01 04:15:55 +01:00
@@ -353,7 +353,7 @@ public class Chunk implements IChunkAccess {
Optimize some light chunk access light calculations repeatedly looks up the same chunk while going down on the Y access. Pass the chunk to it to skip many round trips to the map lookup process. while the gains arent as big since we have last access cache, it should hopefully avoid many callstacks of depth and improve inlining, as well as avoids entering a synchronized code block. The avoiding of entering synchronized section is the main goal here.
2018-10-03 03:55:30 +02:00
private void a(int i, int j, int k, int l) {
if (l > k && this.areNeighborsLoaded(1)) { // Paper
for (int i1 = k; i1 < l; ++i1) {
- this.world.c(EnumSkyBlock.SKY, new BlockPosition(i, i1, j));
+ this.world.updateBrightness(EnumSkyBlock.SKY, new BlockPosition(i, i1, j), this); // Paper
}
this.x = true;
Optimize Light Recalculations The server triggers light recalculations even if the new block is the same as the old block. At this time, BlockData Properties do not impact light calculations. So the only way light should change, is if the block itself changes from 1 block to another. Additionally, as of 1.13, water now only blocks 1 light level instead of 3, meaning that light level decreasing is the same as air. This means, transitions between water and air also do not need to recalculate light, which saves a TON of updates caused by fluids flowing.
2018-09-29 03:30:03 +02:00
diff --git a/src/main/java/net/minecraft/server/World.java b/src/main/java/net/minecraft/server/World.java
Numerous fixes to entity related changes While it wasn't really "broken" before, if plugins use NMS (which they really should't be) and mess with entity management themselves, and get it wrong, they could ultimately corrupt our state expectations. I've been unable to reproduce any issues locally, but these changes are the result of me analyzing the code pretty deeply and seeing about how to make it more durable to abnormal usage. Any servers seeing oddities, please run with -Ddebug.entities=true and send me any logs triggered.
2019-04-06 05:08:45 +02:00
index 97a0fbd55c..fb71879ac0 100644
Optimize Light Recalculations The server triggers light recalculations even if the new block is the same as the old block. At this time, BlockData Properties do not impact light calculations. So the only way light should change, is if the block itself changes from 1 block to another. Additionally, as of 1.13, water now only blocks 1 light level instead of 3, meaning that light level decreasing is the same as air. This means, transitions between water and air also do not need to recalculate light, which saves a TON of updates caused by fluids flowing.
2018-09-29 03:30:03 +02:00
--- a/src/main/java/net/minecraft/server/World.java
+++ b/src/main/java/net/minecraft/server/World.java
Updated Upstream (Bukkit/CraftBukkit/Spigot) Upstream has released updates that appears to apply and compile correctly. This update has not been tested by PaperMC and as with ANY update, please do your own testing Bukkit Changes: bb813f6f SPIGOT-4605: Warn against hacking physics CraftBukkit Changes: 2ced0233 Don't handle sync packets for kicked players d5e96882 SPIGOT-4602: Cache reflection in decompile error workaround Spigot Changes: b0f4c22b SPIGOT-4605: Catch more physics problems
2019-02-03 16:34:04 +01:00
@@ -591,8 +591,9 @@ public abstract class World implements IEntityAccess, GeneratorAccess, IIBlockAc
Optimize some light chunk access light calculations repeatedly looks up the same chunk while going down on the Y access. Pass the chunk to it to skip many round trips to the map lookup process. while the gains arent as big since we have last access cache, it should hopefully avoid many callstacks of depth and improve inlining, as well as avoids entering a synchronized code block. The avoiding of entering synchronized section is the main goal here.
2018-10-03 03:55:30 +02:00
}
if (this.worldProvider.g()) {
- for (i1 = k; i1 <= l; ++i1) {
- this.c(EnumSkyBlock.SKY, new BlockPosition(i, i1, j));
+ Chunk chunk = getChunkIfLoaded(i >> 4, j >> 4); // Paper
+ for (i1 = k; chunk != null && i1 <= l; ++i1) { // Paper
+ this.updateBrightness(EnumSkyBlock.SKY, new BlockPosition(i, i1, j), chunk); // Paper
}
}
Numerous fixes to entity related changes While it wasn't really "broken" before, if plugins use NMS (which they really should't be) and mess with entity management themselves, and get it wrong, they could ultimately corrupt our state expectations. I've been unable to reproduce any issues locally, but these changes are the result of me analyzing the code pretty deeply and seeing about how to make it more durable to abnormal usage. Any servers seeing oddities, please run with -Ddebug.entities=true and send me any logs triggered.
2019-04-06 05:08:45 +02:00
@@ -2220,6 +2221,11 @@ public abstract class World implements IEntityAccess, GeneratorAccess, IIBlockAc
Optimize some light chunk access light calculations repeatedly looks up the same chunk while going down on the Y access. Pass the chunk to it to skip many round trips to the map lookup process. while the gains arent as big since we have last access cache, it should hopefully avoid many callstacks of depth and improve inlining, as well as avoids entering a synchronized code block. The avoiding of entering synchronized section is the main goal here.
2018-10-03 03:55:30 +02:00
public boolean c(EnumSkyBlock enumskyblock, BlockPosition blockposition) {
// CraftBukkit start - Use neighbor cache instead of looking up
Chunk chunk = this.getChunkIfLoaded(blockposition.getX() >> 4, blockposition.getZ() >> 4);
+ // Paper start - optimize light updates where chunk is known
+ return updateBrightness(enumskyblock, blockposition, chunk);
+ }
+ public boolean updateBrightness(EnumSkyBlock enumskyblock, BlockPosition blockposition, Chunk chunk) {
+ // Paper end
if (chunk == null || !chunk.areNeighborsLoaded(1) /*!this.areChunksLoaded(blockposition, 17, false)*/) {
// CraftBukkit end
return false;
Optimize Light Recalculations The server triggers light recalculations even if the new block is the same as the old block. At this time, BlockData Properties do not impact light calculations. So the only way light should change, is if the block itself changes from 1 block to another. Additionally, as of 1.13, water now only blocks 1 light level instead of 3, meaning that light level decreasing is the same as air. This means, transitions between water and air also do not need to recalculate light, which saves a TON of updates caused by fluids flowing.
2018-09-29 03:30:03 +02:00
--
Updated Upstream (Bukkit/CraftBukkit/Spigot) Upstream has released updates that appears to apply and compile correctly. This update has not been tested by PaperMC and as with ANY update, please do your own testing Please note that this build includes changes to meet upstreams requirements for nullability annotations. While we aim for a level of accuracy, these might not be 100% correct, if there are any issues, please speak to us on discord, or open an issue on the tracker to discuss. Bukkit Changes: 9a6a1de3 Remove nullability annotations from enum constructors 3f0591ea SPIGOT-2540: Add nullability annotations to entire Bukkit API CraftBukkit Changes: 8d8475fc SPIGOT-4666: Force parameter in HumanEntity#sleep 8b1588e2 Fix ExplosionPrimeEvent#setFire not working with EnderCrystals 39a287b7 Don't ignore newlines in PlayerListHeader/Footer Spigot Changes: cf694d87 Add nullability annotations
2019-03-20 01:28:15 +01:00
2.21.0
Optimize Light Recalculations The server triggers light recalculations even if the new block is the same as the old block. At this time, BlockData Properties do not impact light calculations. So the only way light should change, is if the block itself changes from 1 block to another. Additionally, as of 1.13, water now only blocks 1 light level instead of 3, meaning that light level decreasing is the same as air. This means, transitions between water and air also do not need to recalculate light, which saves a TON of updates caused by fluids flowing.
2018-09-29 03:30:03 +02:00
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