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fd5c98a9ef
Removes synchronization from sending packets
Makes normal packet sends no longer need to be wrapped and queued like it use to work.
Adds more packet queue immunities on top of keep alive to let the following scenarios go out
without delay:
- Keep Alive
- Chat
- Kick
- All of the packets during the Player Joined World event
Hoping that latter one helps join timeout issues more too for slow connections.
Removes processing packet queue off of main thread
- for the few cases where it is allowed, order is not necessary nor
should it even be happening concurrently in first place (handshaking/login/status)
Ensures packets sent asynchronously are dispatched on main thread
This helps ensure safety for ProtocolLib as packet listeners
are commonly accessing world state. This will allow you to schedule
a packet to be sent async, but itll be dispatched sync for packet
listeners to process.
This should solve some deadlock risks
This may provide a decent performance improvement because thread synchronization incurs a cache reset
so by avoiding ever entering a synchronized block, we get to avoid that, and packet sending is a really
hot activity.
36 lines
No EOL
1.6 KiB
Diff
36 lines
No EOL
1.6 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: wea_ondara <wea_ondara@alpenblock.net>
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Date: Thu, 10 Oct 2019 11:29:42 +0200
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Subject: [PATCH] Performance improvement for Chunk.getEntities
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This patch aims to reduce performance cost used by collecting the
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entities of a chunk. Previously the entitySlices were copied into an
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extra array with List.toArray() with is a costly and unneccessary
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operation. This patch will reduce the load of plugins which for example
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implement custom moblimits and depend on Chunk.getEntities().
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diff --git a/src/main/java/org/bukkit/craftbukkit/CraftChunk.java b/src/main/java/org/bukkit/craftbukkit/CraftChunk.java
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index 47f1b970b9b..39ef95cbbb1 100644
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--- a/src/main/java/org/bukkit/craftbukkit/CraftChunk.java
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+++ b/src/main/java/org/bukkit/craftbukkit/CraftChunk.java
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@@ -0,0 +0,0 @@ public class CraftChunk implements Chunk {
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Entity[] entities = new Entity[count];
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for (int i = 0; i < 16; i++) {
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-
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- for (Object obj : chunk.entitySlices[i].toArray()) {
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- if (!(obj instanceof net.minecraft.server.Entity)) {
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+ // Paper start - speed up (was with chunk.entitySlices[i].toArray() and cast checks which costs a lot of performance if called often)
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+ for (net.minecraft.server.Entity entity : chunk.entitySlices[i]) {
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+ if (entity == null) {
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continue;
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}
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-
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- entities[index++] = ((net.minecraft.server.Entity) obj).getBukkitEntity();
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+ entities[index++] = entity.getBukkitEntity();
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}
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+ // Paper end
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}
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return entities;
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--
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