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3aaba8c301
It's always been commonly said to 'ignore' that TPS was '19.X', that it was fine. I suspect that the inaccuracy of floating point math resulted in us losing precision over time, making it difficult to actually get back to 20, as you know the fun 0.1 + 0.1 ... 9 more times != 1 problem. BigDecimal supports working with doubles with higher precision. This change makes it so our RollingAverage class maintains all of the data using BigDecimal and using BigDecimal arithematic operations. This ensures we have extremely high precision, enabling us to actually be able print '20 TPS' when TPS is perfect.
306 lines
15 KiB
Diff
306 lines
15 KiB
Diff
From 961790f1215deed4f84868d2d0c9d42267f341cc Mon Sep 17 00:00:00 2001
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From: Aikar <aikar@aikar.co>
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Date: Wed, 27 Apr 2016 22:09:52 -0400
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Subject: [PATCH] Optimize Hoppers
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* Removes unnecessary extra calls to .update() that are very expensive
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* Lots of itemstack cloning removed. Only clone if the item is actually moved
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* Return true when a plugin cancels inventory move item event instead of false, as false causes pulls to cycle through all items.
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However, pushes do not exhibit the same behavior, so this is not something plugins could of been relying on.
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* Add option (Default on) to cooldown hoppers when they fail to move an item due to full inventory
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* Skip subsequent InventoryMoveItemEvents if a plugin does not use the item after first event fire for an iteration
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diff --git a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
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index 06c949ef06..19f4c61cdc 100644
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--- a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
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+++ b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
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@@ -407,6 +407,15 @@ public class PaperWorldConfig {
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squidMaxSpawnHeight = getDouble("squid-spawn-height.maximum", 0.0D);
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}
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+ public boolean cooldownHopperWhenFull = true;
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+ public boolean disableHopperMoveEvents = false;
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+ private void hopperOptimizations() {
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+ cooldownHopperWhenFull = getBoolean("hopper.cooldown-when-full", cooldownHopperWhenFull);
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+ log("Cooldown Hoppers when Full: " + (cooldownHopperWhenFull ? "enabled" : "disabled"));
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+ disableHopperMoveEvents = getBoolean("hopper.disable-move-event", disableHopperMoveEvents);
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+ log("Hopper Move Item Events: " + (disableHopperMoveEvents ? "disabled" : "enabled"));
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+ }
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+
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public boolean disableSprintInterruptionOnAttack;
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private void disableSprintInterruptionOnAttack() {
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disableSprintInterruptionOnAttack = getBoolean("game-mechanics.disable-sprint-interruption-on-attack", false);
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diff --git a/src/main/java/net/minecraft/server/ItemStack.java b/src/main/java/net/minecraft/server/ItemStack.java
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index 9326eaa2a9..4641113f9d 100644
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--- a/src/main/java/net/minecraft/server/ItemStack.java
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+++ b/src/main/java/net/minecraft/server/ItemStack.java
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@@ -459,8 +459,9 @@ public final class ItemStack {
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return this.getItem().a(this, entityhuman, entityliving, enumhand);
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}
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- public ItemStack cloneItemStack() {
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- ItemStack itemstack = new ItemStack(this.getItem(), this.count);
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+ public ItemStack cloneItemStack() { return cloneItemStack(false); } // Paper
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+ public ItemStack cloneItemStack(boolean origItem) { // Paper
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+ ItemStack itemstack = new ItemStack(origItem ? this.item : this.getItem(), this.count); // Paper
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itemstack.d(this.B());
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if (this.tag != null) {
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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 6fa54386e8..eb3fc836fb 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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@@ -1050,7 +1050,8 @@ public abstract class MinecraftServer implements IAsyncTaskHandler, IMojangStati
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// CraftBukkit - dropTickTime
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for (Iterator iterator = this.getWorlds().iterator(); iterator.hasNext();) {
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- WorldServer worldserver = (WorldServer) iterator.next();
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+ WorldServer worldserver = (WorldServer) iterator.next();
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+ TileEntityHopper.skipHopperEvents = worldserver.paperConfig.disableHopperMoveEvents || org.bukkit.event.inventory.InventoryMoveItemEvent.getHandlerList().getRegisteredListeners().length == 0; // Paper
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i = SystemUtils.c();
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if (true || worldserver.worldProvider.getDimensionManager() == DimensionManager.OVERWORLD || this.getAllowNether()) { // CraftBukkit
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this.methodProfiler.a(() -> {
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diff --git a/src/main/java/net/minecraft/server/TileEntity.java b/src/main/java/net/minecraft/server/TileEntity.java
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index 29fe031d85..d67fd92d9d 100644
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--- a/src/main/java/net/minecraft/server/TileEntity.java
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+++ b/src/main/java/net/minecraft/server/TileEntity.java
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@@ -52,6 +52,7 @@ public abstract class TileEntity implements KeyedObject { // Paper
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public void setCurrentChunk(Chunk chunk) {
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this.currentChunk = chunk != null ? new java.lang.ref.WeakReference<>(chunk) : null;
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}
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+ static boolean IGNORE_TILE_UPDATES = false;
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// Paper end
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@Nullable
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@@ -124,6 +125,7 @@ public abstract class TileEntity implements KeyedObject { // Paper
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public void update() {
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if (this.world != null) {
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+ if (IGNORE_TILE_UPDATES) return; // Paper
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this.f = this.world.getType(this.position);
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this.world.b(this.position, this);
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if (!this.f.isAir()) {
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diff --git a/src/main/java/net/minecraft/server/TileEntityHopper.java b/src/main/java/net/minecraft/server/TileEntityHopper.java
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index 5ba009c7cf..a8cf160fe4 100644
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--- a/src/main/java/net/minecraft/server/TileEntityHopper.java
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+++ b/src/main/java/net/minecraft/server/TileEntityHopper.java
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@@ -190,6 +190,154 @@ public class TileEntityHopper extends TileEntityLootable implements IHopper, ITi
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return false;
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}
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+ // Paper start - Optimize Hoppers
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+ private static boolean skipPullModeEventFire = false;
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+ private static boolean skipPushModeEventFire = false;
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+ static boolean skipHopperEvents = false;
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+
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+ private boolean hopperPush(IInventory iinventory, EnumDirection enumdirection) {
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+ skipPushModeEventFire = skipHopperEvents;
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+ boolean foundItem = false;
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+ for (int i = 0; i < this.getSize(); ++i) {
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+ if (!this.getItem(i).isEmpty()) {
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+ foundItem = true;
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+ ItemStack origItemStack = this.getItem(i);
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+ ItemStack itemstack = origItemStack;
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+
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+ final int origCount = origItemStack.getCount();
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+ final int moved = Math.min(world.spigotConfig.hopperAmount, origCount);
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+ origItemStack.setCount(moved);
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+
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+ // We only need to fire the event once to give protection plugins a chance to cancel this event
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+ // Because nothing uses getItem, every event call should end up the same result.
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+ if (!skipPushModeEventFire) {
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+ itemstack = callPushMoveEvent(iinventory, itemstack);
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+ if (itemstack == null) { // cancelled
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+ origItemStack.setCount(origCount);
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+ return false;
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+ }
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+ }
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+ final ItemStack itemstack2 = addItem(this, iinventory, itemstack, enumdirection);
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+ final int remaining = itemstack2.getCount();
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+ if (remaining != moved) {
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+ origItemStack = origItemStack.cloneItemStack(true);
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+ origItemStack.setCount(origCount - moved + remaining);
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+ this.setItem(i, origItemStack);
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+ iinventory.update();
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+ return true;
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+ }
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+ origItemStack.setCount(origCount);
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+ }
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+ }
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+ if (foundItem && world.paperConfig.cooldownHopperWhenFull) { // Inventory was full - cooldown
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+ this.setCooldown(world.spigotConfig.hopperTransfer);
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+ }
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+ return false;
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+ }
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+
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+ private static boolean hopperPull(IHopper ihopper, IInventory iinventory, int i) {
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+ ItemStack origItemStack = iinventory.getItem(i);
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+ ItemStack itemstack = origItemStack;
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+ final int origCount = origItemStack.getCount();
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+ final World world = ihopper.getWorld();
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+ final int moved = Math.min(world.spigotConfig.hopperAmount, origCount);
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+ itemstack.setCount(moved);
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+
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+ if (!skipPullModeEventFire) {
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+ itemstack = callPullMoveEvent(ihopper, iinventory, itemstack);
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+ if (itemstack == null) { // cancelled
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+ origItemStack.setCount(origCount);
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+ // Drastically improve performance by returning true.
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+ // No plugin could of relied on the behavior of false as the other call
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+ // site for IMIE did not exhibit the same behavior
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+ return true;
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+ }
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+ }
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+
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+ final ItemStack itemstack2 = addItem(iinventory, ihopper, itemstack, null);
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+ final int remaining = itemstack2.getCount();
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+ if (remaining != moved) {
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+ origItemStack = origItemStack.cloneItemStack(true);
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+ origItemStack.setCount(origCount - moved + remaining);
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+ IGNORE_TILE_UPDATES = true;
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+ iinventory.setItem(i, origItemStack);
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+ IGNORE_TILE_UPDATES = false;
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+ iinventory.update();
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+ return true;
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+ }
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+ origItemStack.setCount(origCount);
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+
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+ if (world.paperConfig.cooldownHopperWhenFull) {
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+ cooldownHopper(ihopper);
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+ }
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+
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+ return false;
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+ }
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+
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+ private ItemStack callPushMoveEvent(IInventory iinventory, ItemStack itemstack) {
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+ Inventory destinationInventory = getInventory(iinventory);
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+ InventoryMoveItemEvent event = new InventoryMoveItemEvent(this.getOwner(false).getInventory(),
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+ CraftItemStack.asCraftMirror(itemstack), destinationInventory, true);
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+ boolean result = event.callEvent();
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+ if (!event.calledGetItem && !event.calledSetItem) {
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+ skipPushModeEventFire = true;
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+ }
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+ if (!result) {
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+ cooldownHopper(this);
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+ return null;
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+ }
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+
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+ if (event.calledSetItem) {
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+ return CraftItemStack.asNMSCopy(event.getItem());
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+ } else {
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+ return itemstack;
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+ }
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+ }
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+
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+ private static ItemStack callPullMoveEvent(IHopper hopper, IInventory iinventory, ItemStack itemstack) {
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+ Inventory sourceInventory = getInventory(iinventory);
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+ Inventory destination = getInventory(hopper);
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+
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+ InventoryMoveItemEvent event = new InventoryMoveItemEvent(sourceInventory,
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+ // Mirror is safe as we no plugins ever use this item
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+ CraftItemStack.asCraftMirror(itemstack), destination, false);
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+ boolean result = event.callEvent();
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+ if (!event.calledGetItem && !event.calledSetItem) {
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+ skipPullModeEventFire = true;
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+ }
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+ if (!result) {
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+ cooldownHopper(hopper);
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+ return null;
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+ }
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+
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+ if (event.calledSetItem) {
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+ return CraftItemStack.asNMSCopy(event.getItem());
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+ } else {
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+ return itemstack;
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+ }
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+ }
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+
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+ private static Inventory getInventory(IInventory iinventory) {
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+ Inventory sourceInventory;// Have to special case large chests as they work oddly
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+ if (iinventory instanceof InventoryLargeChest) {
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+ sourceInventory = new org.bukkit.craftbukkit.inventory.CraftInventoryDoubleChest((InventoryLargeChest) iinventory);
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+ } else if (iinventory instanceof TileEntity) {
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+ sourceInventory = ((TileEntity) iinventory).getOwner(false).getInventory();
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+ } else {
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+ sourceInventory = iinventory.getOwner().getInventory();
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+ }
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+ return sourceInventory;
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+ }
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+
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+ private static void cooldownHopper(IHopper hopper) {
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+ if (hopper instanceof TileEntityHopper) {
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+ ((TileEntityHopper) hopper).setCooldown(hopper.getWorld().spigotConfig.hopperTransfer);
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+ } else if (hopper instanceof EntityMinecartHopper) {
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+ ((EntityMinecartHopper) hopper).setCooldown(hopper.getWorld().spigotConfig.hopperTransfer / 2);
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+ }
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+ }
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+
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+ // Paper end
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private boolean s() {
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IInventory iinventory = this.D();
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@@ -201,6 +349,7 @@ public class TileEntityHopper extends TileEntityLootable implements IHopper, ITi
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if (this.a(iinventory, enumdirection)) {
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return false;
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} else {
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+ return hopperPush(iinventory, enumdirection); /* // Paper - disable rest
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for (int i = 0; i < this.getSize(); ++i) {
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if (!this.getItem(i).isEmpty()) {
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ItemStack itemstack = this.getItem(i).cloneItemStack();
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@@ -242,7 +391,7 @@ public class TileEntityHopper extends TileEntityLootable implements IHopper, ITi
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}
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}
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- return false;
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+ return false;*/ // Paper - end commenting out replaced block for Hopper Optimizations
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}
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}
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}
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@@ -313,6 +462,7 @@ public class TileEntityHopper extends TileEntityLootable implements IHopper, ITi
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if (b(iinventory, enumdirection)) {
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return false;
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}
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+ skipPullModeEventFire = skipHopperEvents; // Paper
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if (iinventory instanceof IWorldInventory) {
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IWorldInventory iworldinventory = (IWorldInventory) iinventory;
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@@ -355,6 +505,7 @@ public class TileEntityHopper extends TileEntityLootable implements IHopper, ITi
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ItemStack itemstack = iinventory.getItem(i);
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if (!itemstack.isEmpty() && b(iinventory, itemstack, i, enumdirection)) {
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+ return hopperPull(ihopper, iinventory, i); /* // Paper - disable rest
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ItemStack itemstack1 = itemstack.cloneItemStack();
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// ItemStack itemstack2 = addItem(iinventory, ihopper, iinventory.splitStack(i, 1), (EnumDirection) null);
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// CraftBukkit start - Call event on collection of items from inventories into the hopper
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@@ -395,7 +546,7 @@ public class TileEntityHopper extends TileEntityLootable implements IHopper, ITi
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}
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itemstack1.subtract(origCount - itemstack2.getCount()); // Spigot
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- iinventory.setItem(i, itemstack1);
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+ iinventory.setItem(i, itemstack1);*/ // Paper - end commenting out replaced block for Hopper Optimizations
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}
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return false;
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@@ -404,7 +555,7 @@ public class TileEntityHopper extends TileEntityLootable implements IHopper, ITi
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public static boolean a(IInventory iinventory, EntityItem entityitem) {
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boolean flag = false;
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// CraftBukkit start
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- InventoryPickupItemEvent event = new InventoryPickupItemEvent(iinventory.getOwner().getInventory(), (org.bukkit.entity.Item) entityitem.getBukkitEntity());
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+ InventoryPickupItemEvent event = new InventoryPickupItemEvent(getInventory(iinventory), (org.bukkit.entity.Item) entityitem.getBukkitEntity()); // Paper - use getInventory() to avoid snapshot creation
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entityitem.world.getServer().getPluginManager().callEvent(event);
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if (event.isCancelled()) {
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return false;
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@@ -458,7 +609,9 @@ public class TileEntityHopper extends TileEntityLootable implements IHopper, ITi
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boolean flag1 = iinventory1.P_();
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if (itemstack1.isEmpty()) {
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+ IGNORE_TILE_UPDATES = true; // Paper
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iinventory1.setItem(i, itemstack);
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+ IGNORE_TILE_UPDATES = false; // Paper
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itemstack = ItemStack.a;
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flag = true;
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} else if (a(itemstack1, itemstack)) {
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--
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2.19.0
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