PaperMC/Spigot-Server-Patches/0136-Auto-Save-Improvements.patch
Aikar 3aaba8c301
Use BigDecimal to improve accracy of TPS results - long live 20 TPS!
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.
2018-09-17 22:32:37 -04:00

234 lines
12 KiB
Diff

From 41c8d7f3f017c9bc08a29c044b8b8cb5ff87dc15 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Mon, 19 Sep 2016 23:16:39 -0400
Subject: [PATCH] Auto Save Improvements
Makes Auto Save Rate setting configurable per-world. If the auto save rate is left -1, the global bukkit.yml value will be used.
Process auto save every tick instead of once per auto tick interval, so that chunk saves will distribute over many ticks instead of all at once.
Re-introduce a cap per tick for auto save (Spigot disabled the vanilla cap) and make it configurable.
Adds incremental player auto saving too
diff --git a/src/main/java/com/destroystokyo/paper/PaperConfig.java b/src/main/java/com/destroystokyo/paper/PaperConfig.java
index aa0e3c757d..c1845d6811 100644
--- a/src/main/java/com/destroystokyo/paper/PaperConfig.java
+++ b/src/main/java/com/destroystokyo/paper/PaperConfig.java
@@ -255,4 +255,15 @@ public class PaperConfig {
flyingKickPlayerMessage = getString("messages.kick.flying-player", flyingKickPlayerMessage);
flyingKickVehicleMessage = getString("messages.kick.flying-vehicle", flyingKickVehicleMessage);
}
+
+ public static int playerAutoSaveRate = -1;
+ public static int maxPlayerAutoSavePerTick = 10;
+ private static void playerAutoSaveRate() {
+ playerAutoSaveRate = getInt("settings.player-auto-save-rate", -1);
+ maxPlayerAutoSavePerTick = getInt("settings.max-player-auto-save-per-tick", -1);
+ if (maxPlayerAutoSavePerTick == -1) { // -1 Automatic / "Recommended"
+ // 10 should be safe for everyone unless your mass spamming player auto save
+ maxPlayerAutoSavePerTick = (playerAutoSaveRate == -1 || playerAutoSaveRate > 100) ? 10 : 20;
+ }
+ }
}
diff --git a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
index 547ab09627..78a3188274 100644
--- a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
+++ b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
@@ -2,6 +2,7 @@ package com.destroystokyo.paper;
import java.util.List;
+import net.minecraft.server.MinecraftServer;
import org.bukkit.configuration.file.YamlConfiguration;
import org.spigotmc.SpigotWorldConfig;
@@ -302,4 +303,19 @@ public class PaperWorldConfig {
private void skipEntityTickingInChunksScheduledForUnload() {
skipEntityTickingInChunksScheduledForUnload = getBoolean("skip-entity-ticking-in-chunks-scheduled-for-unload", skipEntityTickingInChunksScheduledForUnload);
}
+
+ public int autoSavePeriod = -1;
+ private void autoSavePeriod() {
+ autoSavePeriod = getInt("auto-save-interval", -1);
+ if (autoSavePeriod > 0) {
+ log("Auto Save Interval: " +autoSavePeriod + " (" + (autoSavePeriod / 20) + "s)");
+ } else if (autoSavePeriod < 0) {
+ autoSavePeriod = MinecraftServer.getServer().autosavePeriod;
+ }
+ }
+
+ public int maxAutoSaveChunksPerTick = 24;
+ private void maxAutoSaveChunksPerTick() {
+ maxAutoSaveChunksPerTick = getInt("max-auto-save-chunks-per-tick", 24);
+ }
}
diff --git a/src/main/java/net/minecraft/server/Chunk.java b/src/main/java/net/minecraft/server/Chunk.java
index 3c9c3cd41d..8d1264879b 100644
--- a/src/main/java/net/minecraft/server/Chunk.java
+++ b/src/main/java/net/minecraft/server/Chunk.java
@@ -50,9 +50,9 @@ public class Chunk implements IChunkAccess {
private final TickList<Block> s;
private final TickList<FluidType> t;
private boolean u;
- private boolean v;
+ private boolean v;public boolean hasEntities() { return v; } // Paper - OBFHELPER
private long lastSaved;
- private boolean x;
+ private boolean x; public boolean isModified() { return x; } // Paper - OBFHELPER
private int y;
private long z;
private int A;
@@ -1028,11 +1028,11 @@ public class Chunk implements IChunkAccess {
if (this.v && this.world.getTime() != this.lastSaved || this.x) {
return true;
}
- } else if (this.v && this.world.getTime() >= this.lastSaved + MinecraftServer.getServer().autosavePeriod * 4) { // Spigot - Only save if we've passed 2 auto save intervals without modification
- return true;
}
-
- return this.x;
+ // Paper start - Make world configurable and incremental
+ // This !flag section should say if isModified or hasEntities, then check auto save
+ return ((isModified() || hasEntities()) && this.world.getTime() >= this.lastSaved + world.paperConfig.autoSavePeriod);
+ // Paper end
}
public boolean isEmpty() {
diff --git a/src/main/java/net/minecraft/server/ChunkProviderServer.java b/src/main/java/net/minecraft/server/ChunkProviderServer.java
index 9739288b53..a35eac043c 100644
--- a/src/main/java/net/minecraft/server/ChunkProviderServer.java
+++ b/src/main/java/net/minecraft/server/ChunkProviderServer.java
@@ -241,7 +241,7 @@ public class ChunkProviderServer implements IChunkProvider {
this.saveChunk(chunk, false); // Spigot
chunk.a(false);
++i;
- if (i == 24 && !flag && false) { // Spigot
+ if (!flag && i >= world.paperConfig.maxAutoSaveChunksPerTick) { // Spigot - // Paper - Incremental Auto Save - cap max
return false;
}
}
diff --git a/src/main/java/net/minecraft/server/EntityPlayer.java b/src/main/java/net/minecraft/server/EntityPlayer.java
index 3d83900298..690cff8828 100644
--- a/src/main/java/net/minecraft/server/EntityPlayer.java
+++ b/src/main/java/net/minecraft/server/EntityPlayer.java
@@ -37,6 +37,7 @@ public class EntityPlayer extends EntityHuman implements ICrafting {
private static final Logger cc = LogManager.getLogger();
public String locale = null; // CraftBukkit - lowercase // Paper - default to null
+ public long lastSave = MinecraftServer.currentTick; // Paper
public PlayerConnection playerConnection;
public final MinecraftServer server;
public final PlayerInteractManager playerInteractManager;
diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
index 04d8c108b4..a547ee5ca1 100644
--- a/src/main/java/net/minecraft/server/MinecraftServer.java
+++ b/src/main/java/net/minecraft/server/MinecraftServer.java
@@ -148,6 +148,7 @@ public abstract class MinecraftServer implements IAsyncTaskHandler, IMojangStati
public org.bukkit.command.RemoteConsoleCommandSender remoteConsole;
public ConsoleReader reader;
public static int currentTick = 0; // Paper - Further improve tick loop
+ public boolean serverAutoSave = false; // Paper
public final Thread primaryThread;
public java.util.Queue<Runnable> processQueue = new java.util.concurrent.ConcurrentLinkedQueue<Runnable>();
public int autosavePeriod;
@@ -942,22 +943,30 @@ public abstract class MinecraftServer implements IAsyncTaskHandler, IMojangStati
this.m.b().a(agameprofile);
}
- if (autosavePeriod > 0 && this.ticks % autosavePeriod == 0) { // CraftBukkit
this.methodProfiler.a("save");
- this.s.savePlayers();
+
+ serverAutoSave = (autosavePeriod > 0 && this.ticks % autosavePeriod == 0); // Paper
+ int playerSaveInterval = com.destroystokyo.paper.PaperConfig.playerAutoSaveRate;
+ if (playerSaveInterval < 0) {
+ playerSaveInterval = autosavePeriod;
+ }
+ if (playerSaveInterval > 0) { // CraftBukkit // Paper
+ this.s.savePlayers(playerSaveInterval);
// Spigot Start
+ } // Paper - Incremental Auto Saving
+
// We replace this with saving each individual world as this.saveChunks(...) is broken,
// and causes the main thread to sleep for random amounts of time depending on chunk activity
// Also pass flag to only save modified chunks
server.playerCommandState = true;
for (World world : getWorlds()) {
- world.getWorld().save(false);
+ if (world.paperConfig.autoSavePeriod > 0) world.getWorld().save(false); // Paper - Incremental / Configurable Auto Saving
}
server.playerCommandState = false;
// this.saveChunks(true);
// Spigot End
this.methodProfiler.e();
- }
+ //} // Paper - Incremental Auto Saving
this.methodProfiler.a("snooper");
if (getSnooperEnabled() && !this.i.d() && this.ticks > 100) { // Spigot
diff --git a/src/main/java/net/minecraft/server/PlayerList.java b/src/main/java/net/minecraft/server/PlayerList.java
index 02dbb8c6c3..73d72ef7e3 100644
--- a/src/main/java/net/minecraft/server/PlayerList.java
+++ b/src/main/java/net/minecraft/server/PlayerList.java
@@ -341,6 +341,7 @@ public abstract class PlayerList {
}
protected void savePlayerFile(EntityPlayer entityplayer) {
+ entityplayer.lastSave = MinecraftServer.currentTick; // Paper
this.playerFileData.save(entityplayer);
ServerStatisticManager serverstatisticmanager = (ServerStatisticManager) entityplayer.getStatisticManager(); // CraftBukkit
@@ -1207,13 +1208,25 @@ public abstract class PlayerList {
}
+ // Paper start
public void savePlayers() {
+ savePlayers(null);
+ }
+
+ public void savePlayers(Integer interval) {
+ long now = MinecraftServer.currentTick;
MinecraftTimings.savePlayers.startTiming(); // Paper
+ int numSaved = 0; // Paper
for (int i = 0; i < this.players.size(); ++i) {
- this.savePlayerFile((EntityPlayer) this.players.get(i));
+ EntityPlayer entityplayer = this.players.get(i);
+ if (interval == null || now - entityplayer.lastSave >= interval) {
+ this.savePlayerFile(entityplayer);
+ if (interval != null && ++numSaved <= com.destroystokyo.paper.PaperConfig.maxPlayerAutoSavePerTick) { break; } // Paper
+ }
}
MinecraftTimings.savePlayers.stopTiming(); // Paper
}
+ // Paper end
public WhiteList getWhitelist() {
return this.whitelist;
diff --git a/src/main/java/net/minecraft/server/WorldServer.java b/src/main/java/net/minecraft/server/WorldServer.java
index c5201697d5..ca2e027cda 100644
--- a/src/main/java/net/minecraft/server/WorldServer.java
+++ b/src/main/java/net/minecraft/server/WorldServer.java
@@ -872,8 +872,9 @@ public class WorldServer extends World implements IAsyncTaskHandler {
ChunkProviderServer chunkproviderserver = this.getChunkProviderServer();
if (chunkproviderserver.d()) {
- org.bukkit.Bukkit.getPluginManager().callEvent(new org.bukkit.event.world.WorldSaveEvent(getWorld())); // CraftBukkit
+ if (flag) org.bukkit.Bukkit.getPluginManager().callEvent(new org.bukkit.event.world.WorldSaveEvent(getWorld())); // CraftBukkit // Paper - Incremental Auto Saving - Only fire event on full save
timings.worldSave.startTiming(); // Paper
+ if (flag || server.serverAutoSave) { // Paper
if (iprogressupdate != null) {
iprogressupdate.a(new ChatMessage("menu.savingLevel", new Object[0]));
}
@@ -882,6 +883,7 @@ public class WorldServer extends World implements IAsyncTaskHandler {
if (iprogressupdate != null) {
iprogressupdate.c(new ChatMessage("menu.savingChunks", new Object[0]));
}
+ } // Paper
timings.worldSaveChunks.startTiming(); // Paper
chunkproviderserver.a(flag);
--
2.19.0