Paper/patches/server/0355-Add-tick-times-API-and-mspt-command.patch

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: William Blake Galbreath <Blake.Galbreath@GMail.com>
Date: Sun, 5 Apr 2020 22:23:14 -0500
Subject: [PATCH] Add tick times API and /mspt command
diff --git a/src/main/java/io/papermc/paper/command/MSPTCommand.java b/src/main/java/io/papermc/paper/command/MSPTCommand.java
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new file mode 100644
index 0000000000000000000000000000000000000000..8b5293b0c696ef21d0101493ffa41b60bf0bc86b
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--- /dev/null
+++ b/src/main/java/io/papermc/paper/command/MSPTCommand.java
@@ -0,0 +1,102 @@
+package io.papermc.paper.command;
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+
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+import net.kyori.adventure.text.Component;
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+import net.minecraft.server.MinecraftServer;
+import org.bukkit.Location;
+import org.bukkit.command.Command;
+import org.bukkit.command.CommandSender;
+
+import java.text.DecimalFormat;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.List;
+import org.checkerframework.checker.nullness.qual.NonNull;
+import org.checkerframework.framework.qual.DefaultQualifier;
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+
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+import static net.kyori.adventure.text.Component.text;
+import static net.kyori.adventure.text.format.NamedTextColor.GOLD;
+import static net.kyori.adventure.text.format.NamedTextColor.GRAY;
+import static net.kyori.adventure.text.format.NamedTextColor.GREEN;
+import static net.kyori.adventure.text.format.NamedTextColor.RED;
+import static net.kyori.adventure.text.format.NamedTextColor.YELLOW;
+
+@DefaultQualifier(NonNull.class)
+public final class MSPTCommand extends Command {
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+ private static final DecimalFormat DF = new DecimalFormat("########0.0");
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+ private static final Component SLASH = text("/");
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+
+ public MSPTCommand(final String name) {
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+ super(name);
+ this.description = "View server tick times";
+ this.usageMessage = "/mspt";
+ this.setPermission("bukkit.command.mspt");
+ }
+
+ @Override
+ public List<String> tabComplete(CommandSender sender, String alias, String[] args, Location location) throws IllegalArgumentException {
+ return Collections.emptyList();
+ }
+
+ @Override
+ public boolean execute(CommandSender sender, String commandLabel, String[] args) {
+ if (!testPermission(sender)) return true;
+
+ MinecraftServer server = MinecraftServer.getServer();
+
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+ List<Component> times = new ArrayList<>();
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+ times.addAll(eval(server.tickTimes5s.getTimes()));
+ times.addAll(eval(server.tickTimes10s.getTimes()));
+ times.addAll(eval(server.tickTimes60s.getTimes()));
+
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+ sender.sendMessage(text().content("Server tick times ").color(GOLD)
+ .append(text().color(YELLOW)
+ .append(
+ text("("),
+ text("avg", GRAY),
+ text("/"),
+ text("min", GRAY),
+ text("/"),
+ text("max", GRAY),
+ text(")")
+ )
+ ).append(
+ text(" from last 5s"),
+ text(",", GRAY),
+ text(" 10s"),
+ text(",", GRAY),
+ text(" 1m"),
+ text(":", YELLOW)
+ )
+ );
+ sender.sendMessage(text().content("◴ ").color(GOLD)
+ .append(text().color(GRAY)
+ .append(
+ times.get(0), SLASH, times.get(1), SLASH, times.get(2), text(", ", YELLOW),
+ times.get(3), SLASH, times.get(4), SLASH, times.get(5), text(", ", YELLOW),
+ times.get(6), SLASH, times.get(7), SLASH, times.get(8)
+ )
+ )
+ );
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+ return true;
+ }
+
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+ private static List<Component> eval(long[] times) {
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+ long min = Integer.MAX_VALUE;
+ long max = 0L;
+ long total = 0L;
+ for (long value : times) {
+ if (value > 0L && value < min) min = value;
+ if (value > max) max = value;
+ total += value;
+ }
+ double avgD = ((double) total / (double) times.length) * 1.0E-6D;
+ double minD = ((double) min) * 1.0E-6D;
+ double maxD = ((double) max) * 1.0E-6D;
+ return Arrays.asList(getColor(avgD), getColor(minD), getColor(maxD));
+ }
+
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+ private static Component getColor(double avg) {
+ return text(DF.format(avg), avg >= 50 ? RED : avg >= 40 ? YELLOW : GREEN);
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+ }
+}
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diff --git a/src/main/java/io/papermc/paper/command/PaperCommands.java b/src/main/java/io/papermc/paper/command/PaperCommands.java
index 72f2e81b9905a0d57ed8e2a88578f62d5235c456..7b58b2d6297800c2dcdbf7539e5ab8e7703f39f1 100644
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--- a/src/main/java/io/papermc/paper/command/PaperCommands.java
+++ b/src/main/java/io/papermc/paper/command/PaperCommands.java
@@ -18,6 +18,7 @@ public final class PaperCommands {
static {
COMMANDS.put("paper", new PaperCommand("paper"));
COMMANDS.put("callback", new CallbackCommand("callback"));
+ COMMANDS.put("mspt", new MSPTCommand("mspt"));
}
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public static void registerCommands(final MinecraftServer server) {
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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 5b274f766e8cf55151ac6499fa1a68b9a0816b57..0fa1d9f299194ff660130a1cf33d9a405d56a842 100644
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--- a/src/main/java/net/minecraft/server/MinecraftServer.java
+++ b/src/main/java/net/minecraft/server/MinecraftServer.java
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@@ -247,6 +247,11 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
private net.kyori.adventure.text.Component motd; // Paper - Adventure
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private int playerIdleTimeout;
public final long[] tickTimes;
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+ // Paper start
+ public final TickTimes tickTimes5s = new TickTimes(100);
+ public final TickTimes tickTimes10s = new TickTimes(200);
+ public final TickTimes tickTimes60s = new TickTimes(1200);
+ // Paper end
@Nullable
private KeyPair keyPair;
@Nullable
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@@ -1328,6 +1333,11 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
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this.averageTickTime = this.averageTickTime * 0.8F + (float) j / 1000000.0F * 0.19999999F;
long k = Util.getNanos();
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+ // Paper start
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+ tickTimes5s.add(this.tickCount, j);
+ tickTimes10s.add(this.tickCount, j);
+ tickTimes60s.add(this.tickCount, j);
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+ // Paper end
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this.logTickTime(k - i);
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this.profiler.pop();
org.spigotmc.WatchdogThread.tick(); // Spigot
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@@ -2574,4 +2584,30 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
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public static record ServerResourcePackInfo(String url, String hash, boolean isRequired, @Nullable Component prompt) {
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}
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+
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+ // Paper start
+ public static class TickTimes {
+ private final long[] times;
+
+ public TickTimes(int length) {
+ times = new long[length];
+ }
+
+ void add(int index, long time) {
+ times[index % times.length] = time;
+ }
+
+ public long[] getTimes() {
+ return times.clone();
+ }
+
+ public double getAverage() {
+ long total = 0L;
+ for (long value : times) {
+ total += value;
+ }
+ return ((double) total / (double) times.length) * 1.0E-6D;
+ }
+ }
+ // Paper end
}
diff --git a/src/main/java/org/bukkit/craftbukkit/CraftServer.java b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
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index da2c850b1625758c0bb387930788b6e9f03555d9..7ac0cdf96740887b97616290b27eb63665294546 100644
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--- a/src/main/java/org/bukkit/craftbukkit/CraftServer.java
+++ b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
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@@ -2533,6 +2533,16 @@ public final class CraftServer implements Server {
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net.minecraft.server.MinecraftServer.getServer().tps15.getAverage()
};
}
+
+ @Override
+ public long[] getTickTimes() {
+ return getServer().tickTimes5s.getTimes();
+ }
+
+ @Override
+ public double getAverageTickTime() {
+ return getServer().tickTimes5s.getAverage();
+ }
// Paper end
// Spigot start