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 678a31fb85947ee8807d02d0fe4e11a73d2dafaa..0fc4feb00940079c4eb9554a3a48d19cbbeeb7bc 100644 --- a/src/main/java/co/aikar/timings/MinecraftTimings.java +++ b/src/main/java/co/aikar/timings/MinecraftTimings.java @@ -49,6 +49,8 @@ public final class MinecraftTimings { 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 d74313b58b660f3c03b8a6db4f80b6b073b6b795..f7c1d07c95f7b67e32bd6679af88612aec74f54f 100644 --- a/src/main/java/net/minecraft/server/MinecraftServer.java +++ b/src/main/java/net/minecraft/server/MinecraftServer.java @@ -1285,6 +1285,7 @@ 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 } diff --git a/src/main/java/net/minecraft/server/level/ServerChunkCache.java b/src/main/java/net/minecraft/server/level/ServerChunkCache.java index 4e58f31e4852a0811f85596653f6db630a75b069..8907396dc21dbfb31ff15286a7daa2110f6e34c0 100644 --- a/src/main/java/net/minecraft/server/level/ServerChunkCache.java +++ b/src/main/java/net/minecraft/server/level/ServerChunkCache.java @@ -571,6 +571,7 @@ public class ServerChunkCache extends ChunkSource { // Paper end Iterator iterator1 = list.iterator(); + int chunksTicked = 0; // Paper while (iterator1.hasNext()) { ServerChunkCache.ChunkAndHolder chunkproviderserver_a = (ServerChunkCache.ChunkAndHolder) iterator1.next(); LevelChunk chunk1 = chunkproviderserver_a.chunk; @@ -584,6 +585,7 @@ public class ServerChunkCache extends ChunkSource { if (this.level.shouldTickBlocksAt(chunkcoordintpair.toLong())) { this.level.tickChunk(chunk1, k); + 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 48513493d92ea0fe5e2cb4f021c843b10caab062..82867a6d6e2277355269712e9e45602fc7afac45 100644 --- a/src/main/java/net/minecraft/server/level/ServerLevel.java +++ b/src/main/java/net/minecraft/server/level/ServerLevel.java @@ -215,6 +215,7 @@ 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; @@ -1187,6 +1188,7 @@ 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 } @@ -1196,6 +1198,7 @@ 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 6bd9b680fa1e84d058ada2354fa6a5b876185dc4..795be71432c4d834004bcfb70a8d1927cf22bfda 100644 --- a/src/main/java/net/minecraft/world/level/Level.java +++ b/src/main/java/net/minecraft/world/level/Level.java @@ -918,6 +918,11 @@ public abstract class Level implements LevelAccessor, AutoCloseable { // Spigot end } else if (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); @@ -932,6 +937,7 @@ 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