From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 From: Spottedleaf Date: Mon, 6 Apr 2020 04:20:44 -0700 Subject: [PATCH] Execute chunk tasks mid-tick This will help the server load chunks if tick times are high. diff --git a/src/main/java/co/aikar/timings/MinecraftTimings.java b/src/main/java/co/aikar/timings/MinecraftTimings.java index 6b3cde6d4d1e63bec01f502f2027ee9fddac08aa..46449728f69ee7d4f78470f8da23c055acd53a3b 100644 --- a/src/main/java/co/aikar/timings/MinecraftTimings.java +++ b/src/main/java/co/aikar/timings/MinecraftTimings.java @@ -48,6 +48,8 @@ public final class MinecraftTimings { public static final Timing antiXrayObfuscateTimer = Timings.ofSafe("anti-xray - obfuscate"); public static final Timing scoreboardScoreSearch = Timings.ofSafe("Scoreboard score search"); // Paper - add timings for scoreboard search + public static final Timing midTickChunkTasks = Timings.ofSafe("Mid Tick Chunk Tasks"); + private static final Map, String> taskNameCache = new MapMaker().weakKeys().makeMap(); private MinecraftTimings() {} diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java index 6f17e5631aace53f75e6badf514dbb77c50065b9..0a23cfeaba071c2179de1931caa86bc46462c338 100644 --- a/src/main/java/net/minecraft/server/MinecraftServer.java +++ b/src/main/java/net/minecraft/server/MinecraftServer.java @@ -1347,8 +1347,79 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop= MAX_CHUNK_EXEC_TIME) { + if (!moreTasks) { + lastMidTickExecuteFailure = currTime; + } + + // note: negative values reduce the time + long overuse = diff - MAX_CHUNK_EXEC_TIME; + if (overuse >= (10L * 1000L * 1000L)) { // 10ms + // make sure something like a GC or dumb plugin doesn't screw us over... + overuse = 10L * 1000L * 1000L; // 10ms + } + + double overuseCount = (double)overuse/(double)MAX_CHUNK_EXEC_TIME; + long extraSleep = (long)Math.round(overuseCount*CHUNK_TASK_QUEUE_BACKOFF_MIN_TIME); + + lastMidTickExecute = currTime + extraSleep; + return; + } + } + } finally { + co.aikar.timings.MinecraftTimings.midTickChunkTasks.stopTiming(); + } + } + // Paper end - execute chunk tasks mid tick + private boolean pollTaskInternal() { if (super.pollTask()) { + this.executeMidTickTasks(); // Paper - execute chunk tasks mid tick return true; } else { if (this.tickRateManager.isSprinting() || this.haveTime()) { diff --git a/src/main/java/net/minecraft/server/level/ServerChunkCache.java b/src/main/java/net/minecraft/server/level/ServerChunkCache.java index 63fad53a9184d7ab97f143b7d85ae9ef2ca9f8bc..1483007b79e18107e41037c279e048f04f666d1d 100644 --- a/src/main/java/net/minecraft/server/level/ServerChunkCache.java +++ b/src/main/java/net/minecraft/server/level/ServerChunkCache.java @@ -566,6 +566,7 @@ public class ServerChunkCache extends ChunkSource { boolean flag1 = this.level.ticksPerSpawnCategory.getLong(org.bukkit.entity.SpawnCategory.ANIMAL) != 0L && this.level.getLevelData().getGameTime() % this.level.ticksPerSpawnCategory.getLong(org.bukkit.entity.SpawnCategory.ANIMAL) == 0L; // CraftBukkit Iterator iterator1 = list.iterator(); + int chunksTicked = 0; // Paper while (iterator1.hasNext()) { ServerChunkCache.ChunkAndHolder chunkproviderserver_a = (ServerChunkCache.ChunkAndHolder) iterator1.next(); LevelChunk chunk1 = chunkproviderserver_a.chunk; @@ -579,6 +580,7 @@ public class ServerChunkCache extends ChunkSource { if (this.level.shouldTickBlocksAt(chunkcoordintpair.toLong())) { this.level.tickChunk(chunk1, l); + if ((chunksTicked++ & 1) == 0) net.minecraft.server.MinecraftServer.getServer().executeMidTickTasks(); // Paper } } } diff --git a/src/main/java/net/minecraft/server/level/ServerLevel.java b/src/main/java/net/minecraft/server/level/ServerLevel.java index e2b22b51a8c6d668eaa6572de16bb7a76351d0d3..716420eb3dea5a9b6d8e72d0bdf388dc37677032 100644 --- a/src/main/java/net/minecraft/server/level/ServerLevel.java +++ b/src/main/java/net/minecraft/server/level/ServerLevel.java @@ -217,6 +217,7 @@ public class ServerLevel extends Level implements WorldGenLevel { private final StructureCheck structureCheck; private final boolean tickTime; private final RandomSequences randomSequences; + public long lastMidTickExecuteFailure; // Paper - execute chunk tasks mid tick // CraftBukkit start public final LevelStorageSource.LevelStorageAccess convertable; @@ -1206,6 +1207,7 @@ public class ServerLevel extends Level implements WorldGenLevel { if (fluid1.is(fluid)) { fluid1.tick(this, pos); } + MinecraftServer.getServer().executeMidTickTasks(); // Paper - exec chunk tasks during world tick } @@ -1215,6 +1217,7 @@ public class ServerLevel extends Level implements WorldGenLevel { if (iblockdata.is(block)) { iblockdata.tick(this, pos, this.random); } + MinecraftServer.getServer().executeMidTickTasks(); // Paper - exec chunk tasks during world tick } diff --git a/src/main/java/net/minecraft/world/level/Level.java b/src/main/java/net/minecraft/world/level/Level.java index 18e26a5fd8843618710403b3fa4818287e90376c..705f31f54bf7d24aa57700044b65845da532d4eb 100644 --- a/src/main/java/net/minecraft/world/level/Level.java +++ b/src/main/java/net/minecraft/world/level/Level.java @@ -923,6 +923,11 @@ public abstract class Level implements LevelAccessor, AutoCloseable { // Spigot end } else if (flag && this.shouldTickBlocksAt(tickingblockentity.getPos())) { tickingblockentity.tick(); + // Paper start - execute chunk tasks during tick + if ((this.tileTickPosition & 7) == 0) { + MinecraftServer.getServer().executeMidTickTasks(); + } + // Paper end - execute chunk tasks during tick } } this.blockEntityTickers.removeAll(toRemove); @@ -937,6 +942,7 @@ public abstract class Level implements LevelAccessor, AutoCloseable { public void guardEntityTick(Consumer tickConsumer, T entity) { try { tickConsumer.accept(entity); + MinecraftServer.getServer().executeMidTickTasks(); // Paper - execute chunk tasks mid tick } catch (Throwable throwable) { if (throwable instanceof ThreadDeath) throw throwable; // Paper // Paper start - Prevent tile entity and entity crashes