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Implement a new TPS command which will show the average TPS over the last 1,5 and 15 minutes, using the same algorithm as the linux kernel (exponentiallialy damped moving average).

This commit is contained in:
md_5 2014-01-25 14:09:21 +11:00
parent 9a280ecec9
commit a50a1d4c83
1 changed files with 89 additions and 69 deletions
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158
CraftBukkit-Patches/0100-Highly-Optimized-Tick-Loop.patch
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@ -1,11 +1,11 @@
From a6907b6a5936948036e02fdc6ce81f554bb787e9 Mon Sep 17 00:00:00 2001
From ad6ccb8e038d440644721c1d4e586875230ad444 Mon Sep 17 00:00:00 2001
From: md_5 <git@md-5.net>
Date: Wed, 22 Jan 2014 19:14:15 +1100
Date: Sat, 25 Jan 2014 14:08:35 +1100
Subject: [PATCH] Highly Optimized Tick Loop
diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
index 588ce0a..0ca1bb6 100644
index 588ce0a..a549a95 100644
--- a/src/main/java/net/minecraft/server/MinecraftServer.java
+++ b/src/main/java/net/minecraft/server/MinecraftServer.java
@@ -101,6 +101,11 @@ public abstract class MinecraftServer implements ICommandListener, Runnable, IMo
@ -15,12 +15,26 @@ index 588ce0a..0ca1bb6 100644
+ // Spigot start
+ private static final int TPS = 20;
+ private static final int TICK_TIME = 1000000000 / TPS;
+ public static double currentTPS = 0;
+ public final double[] recentTps = new double[ 3 ];
+ // Spigot end
public MinecraftServer(OptionSet options, Proxy proxy) { // CraftBukkit - signature file -> OptionSet
i = this;
@@ -429,38 +434,25 @@ public abstract class MinecraftServer implements ICommandListener, Runnable, IMo
@@ -419,6 +424,13 @@ public abstract class MinecraftServer implements ICommandListener, Runnable, IMo
this.isRunning = false;
}
+ // Spigot Start
+ private static double calcTps(double avg, double exp, double tps)
+ {
+ return ( avg * exp ) + ( tps * ( 1 - exp ) );
+ }
+ // Spigot End
+
public void run() {
try {
if (this.init()) {
@@ -429,38 +441,32 @@ public abstract class MinecraftServer implements ICommandListener, Runnable, IMo
this.p.setServerInfo(new ServerPingServerData("1.7.2", 4));
this.a(this.p);
@ -40,32 +54,37 @@ index 588ce0a..0ca1bb6 100644
- if (l < 0L) {
- h.warn("Time ran backwards! Did the system time change?");
- l = 0L;
- }
-
- j += l;
- i = k;
- if (this.worlds.get(0).everyoneDeeplySleeping()) { // CraftBukkit
- this.t();
- j = 0L;
+ curTime = System.nanoTime();
+ wait = TICK_TIME - (curTime - lastTick) - catchupTime;
+ if (wait > 0) {
+ Thread.sleep(wait / 1000000);
+ catchupTime = 0;
+ continue;
} else {
+ } else {
+ catchupTime = Math.min(1000000000, Math.abs(wait));
}
- j += l;
- i = k;
- if (this.worlds.get(0).everyoneDeeplySleeping()) { // CraftBukkit
- this.t();
- j = 0L;
- } else {
- while (j > 50L) {
- MinecraftServer.currentTick = (int) (System.currentTimeMillis() / 50); // CraftBukkit
- j -= 50L;
- this.t();
- }
+ catchupTime = Math.min(1000000000, Math.abs(wait));
+ if ( MinecraftServer.currentTick++ % 100 == 0 )
+ {
+ double currentTps = 1E9 / ( curTime - lastTick );
+ recentTps[0] = calcTps( recentTps[0], 0.92, currentTps ); // 1/exp(5sec/1min)
+ recentTps[1] = calcTps( recentTps[1], 0.9835, currentTps ); // 1/exp(5sec/5min)
+ recentTps[2] = calcTps( recentTps[2], 0.9945, currentTps ); // 1/exp(5sec/15min)
}
-
- Thread.sleep(1L);
+ currentTPS = (currentTPS * 0.95) + (1E9 / (curTime - lastTick) * 0.05);
+ lastTick = curTime;
+ MinecraftServer.currentTick++;
- Thread.sleep(1L);
+ this.t();
this.N = true;
}
@ -73,60 +92,11 @@ index 588ce0a..0ca1bb6 100644
} else {
this.a((CrashReport) null);
}
diff --git a/src/main/java/org/bukkit/craftbukkit/command/TicksPerSecondCommand.java b/src/main/java/org/bukkit/craftbukkit/command/TicksPerSecondCommand.java
new file mode 100644
index 0000000..f114a31
--- /dev/null
+++ b/src/main/java/org/bukkit/craftbukkit/command/TicksPerSecondCommand.java
@@ -0,0 +1,35 @@
+package org.bukkit.craftbukkit.command;
+
+import net.minecraft.server.MinecraftServer;
+import org.bukkit.ChatColor;
+import org.bukkit.command.Command;
+import org.bukkit.command.CommandSender;
+
+public class TicksPerSecondCommand extends Command {
+
+ public TicksPerSecondCommand(String name) {
+ super(name);
+ this.description = "Gets the current ticks per second for the server";
+ this.usageMessage = "/tps";
+ this.setPermission("bukkit.command.tps");
+ }
+
+ @Override
+ public boolean execute(CommandSender sender, String currentAlias, String[] args) {
+ if (!testPermission(sender)) return true;
+
+ double tps = Math.min(20, Math.round(MinecraftServer.currentTPS * 10) / 10.0);
+ ChatColor color;
+ if (tps > 19.2D) {
+ color = ChatColor.GREEN;
+ } else if (tps > 17.4D) {
+ color = ChatColor.YELLOW;
+ } else {
+ color = ChatColor.RED;
+ }
+
+ sender.sendMessage(ChatColor.GOLD + "[TPS] " + color + tps);
+
+ return true;
+ }
+}
diff --git a/src/main/java/org/spigotmc/SpigotConfig.java b/src/main/java/org/spigotmc/SpigotConfig.java
index 205249e..4319e9b 100755
index 205249e..6634292 100755
--- a/src/main/java/org/spigotmc/SpigotConfig.java
+++ b/src/main/java/org/spigotmc/SpigotConfig.java
@@ -20,6 +20,7 @@ import org.bukkit.command.Command;
import org.bukkit.command.SimpleCommandMap;
import org.bukkit.configuration.ConfigurationSection;
import org.bukkit.configuration.file.YamlConfiguration;
+import org.bukkit.craftbukkit.command.TicksPerSecondCommand;
public class SpigotConfig
{
@@ -248,4 +249,9 @@ public class SpigotConfig
@@ -248,4 +248,9 @@ public class SpigotConfig
"screen." );
}
}
@ -136,6 +106,56 @@ index 205249e..4319e9b 100755
+ commands.put( "tps", new TicksPerSecondCommand( "tps" ) );
+ }
}
diff --git a/src/main/java/org/spigotmc/TicksPerSecondCommand.java b/src/main/java/org/spigotmc/TicksPerSecondCommand.java
new file mode 100644
index 0000000..0f73608
--- /dev/null
+++ b/src/main/java/org/spigotmc/TicksPerSecondCommand.java
@@ -0,0 +1,44 @@
+package org.spigotmc;
+
+import com.google.common.base.Joiner;
+import net.minecraft.server.MinecraftServer;
+import net.minecraft.util.com.google.common.collect.Iterables;
+import org.bukkit.ChatColor;
+import org.bukkit.command.Command;
+import org.bukkit.command.CommandSender;
+
+public class TicksPerSecondCommand extends Command
+{
+
+ public TicksPerSecondCommand(String name)
+ {
+ super( name );
+ this.description = "Gets the current ticks per second for the server";
+ this.usageMessage = "/tps";
+ this.setPermission( "bukkit.command.tps" );
+ }
+
+ @Override
+ public boolean execute(CommandSender sender, String currentAlias, String[] args)
+ {
+ if ( !testPermission( sender ) )
+ {
+ return true;
+ }
+
+ StringBuilder sb = new StringBuilder( ChatColor.GOLD + "Tps from last 1m, 5m, 15m: " );
+ for ( double tps : MinecraftServer.getServer().recentTps )
+ {
+ sb.append( format( Math.max( tps, 20 ) ) );
+ sb.append( ", " );
+ }
+ sender.sendMessage( sb.substring( 0, sb.length() - 2 ) );
+
+ return true;
+ }
+
+ private String format(double tps)
+ {
+ return ( ( tps > 18 ) ? ChatColor.GREEN : ( tps > 16 ) ? ChatColor.YELLOW : ChatColor.RED ).toString() + tps;
+ }
+}
--
1.8.3.2