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789bc79280
Upstream has released updates that appear 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: c9a46ebf #653: Add World#spawn with randomizeData parameter e49c2e3a Damageable should extend ItemMeta 01ff04f4 SPIGOT-5880, SPIGOT-5567: New ChunkGenerator API ca5b4b1a SPIGOT-6697: Deprecate generateTree with BlockChangeDelegate as it does not handle tiles CraftBukkit Changes: 7c8bbcbe SPIGOT-6716: Preserve the order of stored enchantments of enchanted books. 18027d02 #914: Add World#spawn with randomizeData parameter 3cad0316 SPIGOT-6714: Don't fire PlayerBucketEvent when empty 8c6d60cf Fix server crash with BlockPopulator when entities are at a negative chunk border 4f6bcc84 SPIGOT-5880, SPIGOT-5567: New ChunkGenerator API 78d5b35b SPIGOT-6697: Restore generateTree with BlockChangeDelegate behaviour 15792f0d Rebuild patch c949675e SPIGOT-6713: Cancelling EntityTransformEvent Causes Deceased Slimes To Not Despawn a955f15c Fix issues with new ChunkGenerator API a0a37f41 SPIGOT-6630: Replacing an enchantment on an item creates a conflict error Spigot Changes: b166a49b Rebuild patches 3c1fc60a SPIGOT-6693: Composters only take in one item at custom hopper speeds
269 lines
14 KiB
Diff
269 lines
14 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Aikar <aikar@aikar.co>
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Date: Thu, 9 Apr 2020 00:09:26 -0400
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Subject: [PATCH] Mid Tick Chunk Tasks - Speed up processing of chunk loads and
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generation
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Credit to Spotted for the idea
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A lot of the new chunk system requires constant back and forth the main thread
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to handle priority scheduling and ensuring conflicting tasks do not run at the
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same time.
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The issue is, these queues are only checked at either:
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A) Sync Chunk Loads
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B) End of Tick while sleeping
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This results in generating chunks sitting waiting for a full tick to
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complete before it will even start the next unit of work to do.
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Additionally, this also delays loading of chunks until this same timing.
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We will now periodically poll the chunk task queues throughout the tick,
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looking for work to do.
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We do this in a fair method that considers all worlds, not just the one being
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ticked, so that each world can get 1 task procesed each before the next pass.
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In a view distance of 15, chunk loading performance was visually faster on the client.
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Flying at high speed in spectator mode was able to keep up with chunk loading (as long as they are already generated)
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diff --git a/src/main/java/co/aikar/timings/MinecraftTimings.java b/src/main/java/co/aikar/timings/MinecraftTimings.java
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index b47b7dce26805badd422c1867733ff4bfd00e9f4..b9cdbf8acccfd6b207a0116f068168f3b8c8e17d 100644
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--- a/src/main/java/co/aikar/timings/MinecraftTimings.java
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+++ b/src/main/java/co/aikar/timings/MinecraftTimings.java
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@@ -16,6 +16,7 @@ import java.util.Map;
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public final class MinecraftTimings {
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public static final Timing serverOversleep = Timings.ofSafe("Server Oversleep");
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+ public static final Timing midTickChunkTasks = Timings.ofSafe("Mid Tick Chunk Tasks");
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public static final Timing playerListTimer = Timings.ofSafe("Player List");
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public static final Timing commandFunctionsTimer = Timings.ofSafe("Command Functions");
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public static final Timing connectionTimer = Timings.ofSafe("Connection Handler");
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diff --git a/src/main/java/com/destroystokyo/paper/PaperConfig.java b/src/main/java/com/destroystokyo/paper/PaperConfig.java
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index 2fcb923b8aa0e891de9f86c4c55a4af8969c04cd..04b402084d847ba75b8282b25054d7df8a705faa 100644
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--- a/src/main/java/com/destroystokyo/paper/PaperConfig.java
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+++ b/src/main/java/com/destroystokyo/paper/PaperConfig.java
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@@ -428,4 +428,9 @@ public class PaperConfig {
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log("Async Chunks: Enabled - Chunks will be loaded much faster, without lag.");
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}
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}
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+
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+ public static int midTickChunkTasks = 1000;
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+ private static void midTickChunkTasks() {
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+ midTickChunkTasks = getInt("settings.chunk-tasks-per-tick", midTickChunkTasks);
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+ }
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}
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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 ce5cb696dfa2ff9a07ab9e7547ba54920e58f53a..3c299bae9095ddc3732f1817c2d52f8d8a6987db 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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@@ -1135,6 +1135,7 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
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// Paper end
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tickSection = curTime;
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}
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+ midTickChunksTasksRan = 0; // Paper
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// Spigot end
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if (this.debugCommandProfilerDelayStart) {
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@@ -1209,7 +1210,7 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
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}
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- private boolean haveTime() {
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+ public boolean haveTime() { // Paper
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// CraftBukkit start
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if (isOversleep) return canOversleep();// Paper - because of our changes, this logic is broken
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return this.forceTicks || this.runningTask() || Util.getMillis() < (this.mayHaveDelayedTasks ? this.delayedTasksMaxNextTickTime : this.nextTickTime);
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@@ -1239,6 +1240,23 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
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});
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}
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+ // Paper start
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+ public int midTickChunksTasksRan = 0;
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+ private long midTickLastRan = 0;
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+ public void midTickLoadChunks() {
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+ if (!isSameThread() || System.nanoTime() - midTickLastRan < 1000000) {
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+ // only check once per 0.25ms incase this code is called in a hot method
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+ return;
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+ }
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+ try (co.aikar.timings.Timing ignored = co.aikar.timings.MinecraftTimings.midTickChunkTasks.startTiming()) {
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+ for (ServerLevel value : this.getAllLevels()) {
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+ value.getChunkSource().mainThreadProcessor.midTickLoadChunks();
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+ }
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+ midTickLastRan = System.nanoTime();
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+ }
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+ }
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+ // Paper end
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+
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@Override
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public TickTask wrapRunnable(Runnable runnable) {
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return new TickTask(this.tickCount, runnable);
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@@ -1328,6 +1346,7 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
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// Paper start - move oversleep into full server tick
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isOversleep = true;MinecraftTimings.serverOversleep.startTiming();
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this.managedBlock(() -> {
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+ midTickLoadChunks(); // will only do loads since we are still considered !canSleepForTick
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return !this.canOversleep();
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});
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isOversleep = false;MinecraftTimings.serverOversleep.stopTiming();
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@@ -1396,13 +1415,16 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
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}
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public void tickChildren(BooleanSupplier shouldKeepTicking) {
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+ midTickLoadChunks(); // Paper
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MinecraftTimings.bukkitSchedulerTimer.startTiming(); // Spigot // Paper
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this.server.getScheduler().mainThreadHeartbeat(this.tickCount); // CraftBukkit
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MinecraftTimings.bukkitSchedulerTimer.stopTiming(); // Spigot // Paper
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+ midTickLoadChunks(); // Paper
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this.profiler.push("commandFunctions");
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MinecraftTimings.commandFunctionsTimer.startTiming(); // Spigot // Paper
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this.getFunctions().tick();
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MinecraftTimings.commandFunctionsTimer.stopTiming(); // Spigot // Paper
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+ midTickLoadChunks(); // Paper
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this.profiler.popPush("levels");
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Iterator iterator = this.getAllLevels().iterator();
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@@ -1413,7 +1435,7 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
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this.processQueue.remove().run();
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}
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MinecraftTimings.processQueueTimer.stopTiming(); // Spigot
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-
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+ midTickLoadChunks(); // Paper
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MinecraftTimings.timeUpdateTimer.startTiming(); // Spigot // Paper
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// Send time updates to everyone, it will get the right time from the world the player is in.
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// Paper start - optimize time updates
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@@ -1455,9 +1477,11 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
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this.profiler.push("tick");
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try {
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+ midTickLoadChunks(); // Paper
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worldserver.timings.doTick.startTiming(); // Spigot
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worldserver.tick(shouldKeepTicking);
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worldserver.timings.doTick.stopTiming(); // Spigot
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+ midTickLoadChunks(); // Paper
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} catch (Throwable throwable) {
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// Spigot Start
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CrashReport crashreport;
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diff --git a/src/main/java/net/minecraft/server/level/ServerChunkCache.java b/src/main/java/net/minecraft/server/level/ServerChunkCache.java
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index 228ff4b52a017e8af987f60d84b7906c9be098f0..c9e4802251dd1582e467112d45a3bd5f31ac1be2 100644
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--- a/src/main/java/net/minecraft/server/level/ServerChunkCache.java
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+++ b/src/main/java/net/minecraft/server/level/ServerChunkCache.java
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@@ -709,6 +709,7 @@ public class ServerChunkCache extends ChunkSource {
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this.level.getProfiler().push("purge");
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this.level.timings.doChunkMap.startTiming(); // Spigot
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this.distanceManager.purgeStaleTickets();
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+ this.level.getServer().midTickLoadChunks(); // Paper
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this.runDistanceManagerUpdates();
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this.level.timings.doChunkMap.stopTiming(); // Spigot
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this.level.getProfiler().popPush("chunks");
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@@ -718,6 +719,7 @@ public class ServerChunkCache extends ChunkSource {
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this.level.timings.doChunkUnload.startTiming(); // Spigot
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this.level.getProfiler().popPush("unload");
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this.chunkMap.tick(booleansupplier);
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+ this.level.getServer().midTickLoadChunks(); // Paper
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this.level.timings.doChunkUnload.stopTiming(); // Spigot
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this.level.getProfiler().pop();
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this.clearCache();
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@@ -773,6 +775,7 @@ public class ServerChunkCache extends ChunkSource {
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};
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// Paper end
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this.level.timings.chunkTicks.startTiming(); // Paper
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+ final int[] chunksTicked = {0}; // Paper
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list.forEach((playerchunk) -> {
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Optional<LevelChunk> optional = ((Either) playerchunk.getTickingChunkFuture().getNow(ChunkHolder.UNLOADED_LEVEL_CHUNK)).left();
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@@ -784,6 +787,7 @@ public class ServerChunkCache extends ChunkSource {
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chunk.setInhabitedTime(chunk.getInhabitedTime() + j);
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if (flag1 && (this.spawnEnemies || this.spawnFriendlies) && this.level.getWorldBorder().isWithinBounds(chunk.getPos()) && !this.chunkMap.isOutsideOfRange(chunkcoordintpair, true)) { // Spigot
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NaturalSpawner.spawnForChunk(this.level, chunk, spawnercreature_d, this.spawnFriendlies, this.spawnEnemies, flag2);
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+ if (chunksTicked[0]++ % 10 == 0) this.level.getServer().midTickLoadChunks(); // Paper
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}
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// this.level.timings.doTickTiles.startTiming(); // Spigot // Paper
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@@ -801,7 +805,7 @@ public class ServerChunkCache extends ChunkSource {
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}
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this.level.getProfiler().popPush("broadcast");
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- this.chunkMap.getChunks().forEach((playerchunk) -> { // Paper - no... just no...
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+ this.chunkMap.forEachVisibleChunk((playerchunk) -> { // Paper - safe iterator incase chunk loads, also no wrapping
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Optional<LevelChunk> optional = ((Either) playerchunk.getTickingChunkFuture().getNow(ChunkHolder.UNLOADED_LEVEL_CHUNK)).left(); // CraftBukkit - decompile error
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Objects.requireNonNull(playerchunk);
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@@ -965,6 +969,41 @@ public class ServerChunkCache extends ChunkSource {
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super.doRunTask(task);
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}
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+ // Paper start
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+ private long lastMidTickChunkTask = 0;
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+ public boolean pollChunkLoadTasks() {
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+ if (com.destroystokyo.paper.io.chunk.ChunkTaskManager.pollChunkWaitQueue() || ServerChunkCache.this.level.asyncChunkTaskManager.pollNextChunkTask()) {
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+ try {
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+ ServerChunkCache.this.runDistanceManagerUpdates();
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+ } finally {
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+ // from below: process pending Chunk loadCallback() and unloadCallback() after each run task
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+ chunkMap.callbackExecutor.run();
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+ }
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+ return true;
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+ }
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+ return false;
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+ }
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+ public void midTickLoadChunks() {
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+ net.minecraft.server.MinecraftServer server = ServerChunkCache.this.level.getServer();
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+ // always try to load chunks, restrain generation/other updates only. don't count these towards tick count
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+ //noinspection StatementWithEmptyBody
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+ while (pollChunkLoadTasks()) {}
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+
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+ if (System.nanoTime() - lastMidTickChunkTask < 200000) {
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+ return;
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+ }
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+
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+ for (;server.midTickChunksTasksRan < com.destroystokyo.paper.PaperConfig.midTickChunkTasks && server.haveTime();) {
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+ if (this.pollTask()) {
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+ server.midTickChunksTasksRan++;
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+ lastMidTickChunkTask = System.nanoTime();
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+ } else {
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+ break;
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+ }
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+ }
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+ }
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+ // Paper end
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+
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@Override
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// CraftBukkit start - process pending Chunk loadCallback() and unloadCallback() after each run task
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public boolean pollTask() {
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diff --git a/src/main/java/net/minecraft/server/level/ServerLevel.java b/src/main/java/net/minecraft/server/level/ServerLevel.java
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index 428d03aff76b8e62fb9daa02442b7ea829bc9b14..021915680f6aa054585527dc0caf18b65795a1b7 100644
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--- a/src/main/java/net/minecraft/server/level/ServerLevel.java
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+++ b/src/main/java/net/minecraft/server/level/ServerLevel.java
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@@ -544,6 +544,7 @@ public class ServerLevel extends Level implements WorldGenLevel {
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}
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timings.scheduledBlocks.stopTiming(); // Paper
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+ this.getServer().midTickLoadChunks(); // Paper
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gameprofilerfiller.popPush("raid");
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this.timings.raids.startTiming(); // Paper - timings
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this.raids.tick();
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@@ -556,6 +557,7 @@ public class ServerLevel extends Level implements WorldGenLevel {
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timings.doSounds.startTiming(); // Spigot
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this.runBlockEvents();
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timings.doSounds.stopTiming(); // Spigot
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+ this.getServer().midTickLoadChunks(); // Paper
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this.handlingTick = false;
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gameprofilerfiller.pop();
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boolean flag3 = true || !this.players.isEmpty() || !this.getForcedChunks().isEmpty(); // CraftBukkit - this prevents entity cleanup, other issues on servers with no players
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@@ -602,10 +604,12 @@ public class ServerLevel extends Level implements WorldGenLevel {
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timings.entityTick.stopTiming(); // Spigot
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timings.tickEntities.stopTiming(); // Spigot
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gameprofilerfiller.pop();
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+ this.getServer().midTickLoadChunks(); // Paper
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this.tickBlockEntities();
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}
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gameprofilerfiller.push("entityManagement");
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+ this.getServer().midTickLoadChunks(); // Paper
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this.entityManager.tick();
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gameprofilerfiller.pop();
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}
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