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Optimize network queue by making size() constant-time
Idea from @AlfieC
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46
Spigot-API-Patches/0042-Misc-Utils.patch
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46
Spigot-API-Patches/0042-Misc-Utils.patch
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From 37bc40ae29d91e8f1f7ffc1ad83b6f3987c16515 Mon Sep 17 00:00:00 2001
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From: vemacs <d@nkmem.es>
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Date: Wed, 23 Nov 2016 12:53:43 -0500
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Subject: [PATCH] Misc Utils
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diff --git a/src/main/java/com/destroystokyo/paper/utils/CachedSizeConcurrentLinkedQueue.java b/src/main/java/com/destroystokyo/paper/utils/CachedSizeConcurrentLinkedQueue.java
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new file mode 100644
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index 0000000..d60ecbb
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--- /dev/null
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+++ b/src/main/java/com/destroystokyo/paper/utils/CachedSizeConcurrentLinkedQueue.java
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@@ -0,0 +1,31 @@
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+package com.destroystokyo.paper.utils;
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+
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+import java.util.concurrent.ConcurrentLinkedQueue;
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+import java.util.concurrent.atomic.LongAdder;
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+
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+public class CachedSizeConcurrentLinkedQueue<E> extends ConcurrentLinkedQueue<E> {
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+ private final LongAdder cachedSize = new LongAdder();
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+
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+ @Override
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+ public boolean add(E e) {
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+ boolean result = super.add(e);
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+ if (result) {
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+ cachedSize.increment();
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+ }
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+ return result;
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+ }
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+
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+ @Override
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+ public E poll() {
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+ E result = super.poll();
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+ if (result != null) {
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+ cachedSize.decrement();
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+ }
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+ return result;
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+ }
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+
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+ @Override
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+ public int size() {
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+ return cachedSize.intValue();
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+ }
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+}
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--
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2.8.3.windows.1
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22
Spigot-Server-Patches/0181-Optimize-Network-Queue.patch
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22
Spigot-Server-Patches/0181-Optimize-Network-Queue.patch
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From 43efcd35598c5cfcfec9845b843c7a3ce1380b20 Mon Sep 17 00:00:00 2001
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From: vemacs <d@nkmem.es>
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Date: Wed, 23 Nov 2016 12:54:56 -0500
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Subject: [PATCH] Optimize Network Queue
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diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
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index 683ace3..b4adf7e 100644
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--- a/src/main/java/net/minecraft/server/MinecraftServer.java
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+++ b/src/main/java/net/minecraft/server/MinecraftServer.java
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@@ -102,7 +102,7 @@ public abstract class MinecraftServer implements Runnable, ICommandListener, IAs
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private final GameProfileRepository X;
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private final UserCache Y;
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private long Z;
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- protected final Queue<FutureTask<?>> j = new java.util.concurrent.ConcurrentLinkedQueue<FutureTask<?>>(); // Spigot, PAIL: Rename
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+ protected final Queue<FutureTask<?>> j = new com.destroystokyo.paper.utils.CachedSizeConcurrentLinkedQueue<>(); // Spigot, PAIL: Rename // Paper - Make size() constant-time
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private Thread serverThread;
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private long ab = aw();
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--
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2.8.3.windows.1
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