mirror of
https://github.com/PaperMC/Paper.git
synced 2024-11-30 04:02:50 +01:00
2609a118e8
Upstream has released updates that appears to apply and compile correctly. This update has not been tested by PaperMC and as with ANY update, please do your own testing Bukkit Changes: f4f2ef4c SPIGOT-6222: Correct javadoc for Entity#setPassenger 1871ca9d #559: Add wait time modification for FishHook CraftBukkit Changes: bc6a175e #767: Add wait time modification for FishHook 2fc37bcc SPIGOT-6197: Prevent world loading from updating spawn settings of all worlds
208 lines
11 KiB
Diff
208 lines
11 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
|
|
From: Aikar <aikar@aikar.co>
|
|
Date: Tue, 1 Mar 2016 23:09:29 -0600
|
|
Subject: [PATCH] Further improve server tick loop
|
|
|
|
Improves how the catchup buffer is handled, allowing it to roll both ways
|
|
increasing the effeciency of the thread sleep so it only will sleep once.
|
|
|
|
Also increases the buffer of the catchup to ensure server stays at 20 TPS unless extreme conditions
|
|
|
|
Previous implementation did not calculate TPS correctly.
|
|
Switch to a realistic rolling average and factor in std deviation as an extra reporting variable
|
|
|
|
diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
|
|
index 42942635c69752fe2f5091759f07ed4a892f7b74..775306d7e59ff135004e54d2d055bd05edba7e61 100644
|
|
--- a/src/main/java/net/minecraft/server/MinecraftServer.java
|
|
+++ b/src/main/java/net/minecraft/server/MinecraftServer.java
|
|
@@ -144,7 +144,7 @@ public abstract class MinecraftServer extends IAsyncTaskHandlerReentrant<TickTas
|
|
public org.bukkit.command.ConsoleCommandSender console;
|
|
public org.bukkit.command.RemoteConsoleCommandSender remoteConsole;
|
|
public ConsoleReader reader;
|
|
- public static int currentTick = (int) (System.currentTimeMillis() / 50);
|
|
+ public static int currentTick = 0; // Paper - Further improve tick loop
|
|
public java.util.Queue<Runnable> processQueue = new java.util.concurrent.ConcurrentLinkedQueue<Runnable>();
|
|
public int autosavePeriod;
|
|
public CommandDispatcher vanillaCommandDispatcher;
|
|
@@ -153,7 +153,7 @@ public abstract class MinecraftServer extends IAsyncTaskHandlerReentrant<TickTas
|
|
// Spigot start
|
|
public static final int TPS = 20;
|
|
public static final int TICK_TIME = 1000000000 / TPS;
|
|
- private static final int SAMPLE_INTERVAL = 100;
|
|
+ private static final int SAMPLE_INTERVAL = 20; // Paper
|
|
public final double[] recentTps = new double[ 3 ];
|
|
public final SlackActivityAccountant slackActivityAccountant = new SlackActivityAccountant();
|
|
// Spigot end
|
|
@@ -806,6 +806,57 @@ public abstract class MinecraftServer extends IAsyncTaskHandlerReentrant<TickTas
|
|
{
|
|
return ( avg * exp ) + ( tps * ( 1 - exp ) );
|
|
}
|
|
+
|
|
+ // Paper start - Further improve server tick loop
|
|
+ private static final long SEC_IN_NANO = 1000000000;
|
|
+ private static final long MAX_CATCHUP_BUFFER = TICK_TIME * TPS * 60L;
|
|
+ private long lastTick = 0;
|
|
+ private long catchupTime = 0;
|
|
+ public final RollingAverage tps1 = new RollingAverage(60);
|
|
+ public final RollingAverage tps5 = new RollingAverage(60 * 5);
|
|
+ public final RollingAverage tps15 = new RollingAverage(60 * 15);
|
|
+
|
|
+ public static class RollingAverage {
|
|
+ private final int size;
|
|
+ private long time;
|
|
+ private java.math.BigDecimal total;
|
|
+ private int index = 0;
|
|
+ private final java.math.BigDecimal[] samples;
|
|
+ private final long[] times;
|
|
+
|
|
+ RollingAverage(int size) {
|
|
+ this.size = size;
|
|
+ this.time = size * SEC_IN_NANO;
|
|
+ this.total = dec(TPS).multiply(dec(SEC_IN_NANO)).multiply(dec(size));
|
|
+ this.samples = new java.math.BigDecimal[size];
|
|
+ this.times = new long[size];
|
|
+ for (int i = 0; i < size; i++) {
|
|
+ this.samples[i] = dec(TPS);
|
|
+ this.times[i] = SEC_IN_NANO;
|
|
+ }
|
|
+ }
|
|
+
|
|
+ private static java.math.BigDecimal dec(long t) {
|
|
+ return new java.math.BigDecimal(t);
|
|
+ }
|
|
+ public void add(java.math.BigDecimal x, long t) {
|
|
+ time -= times[index];
|
|
+ total = total.subtract(samples[index].multiply(dec(times[index])));
|
|
+ samples[index] = x;
|
|
+ times[index] = t;
|
|
+ time += t;
|
|
+ total = total.add(x.multiply(dec(t)));
|
|
+ if (++index == size) {
|
|
+ index = 0;
|
|
+ }
|
|
+ }
|
|
+
|
|
+ public double getAverage() {
|
|
+ return total.divide(dec(time), 30, java.math.RoundingMode.HALF_UP).doubleValue();
|
|
+ }
|
|
+ }
|
|
+ private static final java.math.BigDecimal TPS_BASE = new java.math.BigDecimal(1E9).multiply(new java.math.BigDecimal(SAMPLE_INTERVAL));
|
|
+ // Paper End
|
|
// Spigot End
|
|
|
|
protected void w() {
|
|
@@ -818,30 +869,38 @@ public abstract class MinecraftServer extends IAsyncTaskHandlerReentrant<TickTas
|
|
|
|
// Spigot start
|
|
Arrays.fill( recentTps, 20 );
|
|
- long curTime, tickSection = SystemUtils.getMonotonicMillis(), tickCount = 1;
|
|
+ long start = System.nanoTime(), curTime, tickSection = start; // Paper - Further improve server tick loop
|
|
+ lastTick = start - TICK_TIME; // Paper
|
|
while (this.isRunning) {
|
|
- long i = (curTime = SystemUtils.getMonotonicMillis()) - this.nextTick;
|
|
+ long i = ((curTime = System.nanoTime()) / (1000L * 1000L)) - this.nextTick; // Paper
|
|
|
|
if (i > 5000L && this.nextTick - this.lastOverloadTime >= 30000L) { // CraftBukkit
|
|
long j = i / 50L;
|
|
|
|
if (server.getWarnOnOverload()) // CraftBukkit
|
|
- MinecraftServer.LOGGER.warn("Can't keep up! Is the server overloaded? Running {}ms or {} ticks behind", i, j);
|
|
+ MinecraftServer.LOGGER.warn("Can't keep up! Is the server overloaded? Running {}ms or {} ticks behind", i, j);
|
|
this.nextTick += j * 50L;
|
|
this.lastOverloadTime = this.nextTick;
|
|
}
|
|
|
|
- if ( tickCount++ % SAMPLE_INTERVAL == 0 )
|
|
+ if ( ++MinecraftServer.currentTick % SAMPLE_INTERVAL == 0 )
|
|
{
|
|
- double currentTps = 1E3 / ( curTime - tickSection ) * SAMPLE_INTERVAL;
|
|
- 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)
|
|
+ final long diff = curTime - tickSection;
|
|
+ java.math.BigDecimal currentTps = TPS_BASE.divide(new java.math.BigDecimal(diff), 30, java.math.RoundingMode.HALF_UP);
|
|
+ tps1.add(currentTps, diff);
|
|
+ tps5.add(currentTps, diff);
|
|
+ tps15.add(currentTps, diff);
|
|
+ // Backwards compat with bad plugins
|
|
+ recentTps[0] = tps1.getAverage();
|
|
+ recentTps[1] = tps5.getAverage();
|
|
+ recentTps[2] = tps15.getAverage();
|
|
+ // Paper end
|
|
tickSection = curTime;
|
|
}
|
|
// Spigot end
|
|
|
|
- MinecraftServer.currentTick = (int) (System.currentTimeMillis() / 50); // CraftBukkit
|
|
+ //MinecraftServer.currentTick = (int) (System.currentTimeMillis() / 50); // CraftBukkit // Paper - don't overwrite current tick time
|
|
+ lastTick = curTime;
|
|
this.nextTick += 50L;
|
|
GameProfilerTick gameprofilertick = GameProfilerTick.a("Server");
|
|
|
|
diff --git a/src/main/java/org/bukkit/craftbukkit/CraftServer.java b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
|
|
index ac177cd391e220af7584463e35f1f11e0393cde8..d815d1078249f5c849d501835b2d747c52f20af6 100644
|
|
--- a/src/main/java/org/bukkit/craftbukkit/CraftServer.java
|
|
+++ b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
|
|
@@ -2061,6 +2061,17 @@ public final class CraftServer implements Server {
|
|
return CraftMagicNumbers.INSTANCE;
|
|
}
|
|
|
|
+ // Paper - Add getTPS API - Further improve tick loop
|
|
+ @Override
|
|
+ public double[] getTPS() {
|
|
+ return new double[] {
|
|
+ net.minecraft.server.MinecraftServer.getServer().tps1.getAverage(),
|
|
+ net.minecraft.server.MinecraftServer.getServer().tps5.getAverage(),
|
|
+ net.minecraft.server.MinecraftServer.getServer().tps15.getAverage()
|
|
+ };
|
|
+ }
|
|
+ // Paper end
|
|
+
|
|
private final Spigot spigot = new Spigot()
|
|
{
|
|
|
|
diff --git a/src/main/java/org/spigotmc/TicksPerSecondCommand.java b/src/main/java/org/spigotmc/TicksPerSecondCommand.java
|
|
index 9cd57c9d5fe59ceb2cd307e4e1a2052c9ac428fe..7218f23df4d06ff1ca612286e4a404246389ab18 100644
|
|
--- a/src/main/java/org/spigotmc/TicksPerSecondCommand.java
|
|
+++ b/src/main/java/org/spigotmc/TicksPerSecondCommand.java
|
|
@@ -26,22 +26,30 @@ public class TicksPerSecondCommand extends Command
|
|
return true;
|
|
}
|
|
|
|
- StringBuilder sb = new StringBuilder( ChatColor.GOLD + "TPS from last 1m, 5m, 15m: " );
|
|
- for ( double tps : MinecraftServer.getServer().recentTps )
|
|
- {
|
|
- sb.append( format( tps ) );
|
|
- sb.append( ", " );
|
|
+ // Paper start - Further improve tick handling
|
|
+ double[] tps = org.bukkit.Bukkit.getTPS();
|
|
+ String[] tpsAvg = new String[tps.length];
|
|
+
|
|
+ for ( int i = 0; i < tps.length; i++) {
|
|
+ tpsAvg[i] = format( tps[i] );
|
|
+ }
|
|
+ sender.sendMessage(ChatColor.GOLD + "TPS from last 1m, 5m, 15m: " + org.apache.commons.lang.StringUtils.join(tpsAvg, ", "));
|
|
+ if (args.length > 0 && args[0].equals("mem") && sender.hasPermission("bukkit.command.tpsmemory")) {
|
|
+ sender.sendMessage(ChatColor.GOLD + "Current Memory Usage: " + ChatColor.GREEN + ((Runtime.getRuntime().totalMemory() - Runtime.getRuntime().freeMemory()) / (1024 * 1024)) + "/" + (Runtime.getRuntime().totalMemory() / (1024 * 1024)) + " mb (Max: " + (Runtime.getRuntime().maxMemory() / (1024 * 1024)) + " mb)");
|
|
+ if (!hasShownMemoryWarning) {
|
|
+ sender.sendMessage(ChatColor.RED + "Warning: " + ChatColor.GOLD + " Memory usage on modern garbage collectors is not a stable value and it is perfectly normal to see it reach max. Please do not pay it much attention.");
|
|
+ hasShownMemoryWarning = true;
|
|
+ }
|
|
}
|
|
- sender.sendMessage( sb.substring( 0, sb.length() - 2 ) );
|
|
- sender.sendMessage(ChatColor.GOLD + "Current Memory Usage: " + ChatColor.GREEN + ((Runtime.getRuntime().totalMemory() - Runtime.getRuntime().freeMemory()) / (1024 * 1024)) + "/" + (Runtime.getRuntime().totalMemory() / (1024 * 1024)) + " mb (Max: "
|
|
- + (Runtime.getRuntime().maxMemory() / (1024 * 1024)) + " mb)");
|
|
+ // Paper end
|
|
|
|
return true;
|
|
}
|
|
|
|
- private String format(double tps)
|
|
+ private boolean hasShownMemoryWarning; // Paper
|
|
+ private static String format(double tps) // Paper - Made static
|
|
{
|
|
return ( ( tps > 18.0 ) ? ChatColor.GREEN : ( tps > 16.0 ) ? ChatColor.YELLOW : ChatColor.RED ).toString()
|
|
- + ( ( tps > 20.0 ) ? "*" : "" ) + Math.min( Math.round( tps * 100.0 ) / 100.0, 20.0 );
|
|
+ + ( ( tps > 21.0 ) ? "*" : "" ) + Math.min( Math.round( tps * 100.0 ) / 100.0, 20.0 ); // Paper - only print * at 21, we commonly peak to 20.02 as the tick sleep is not accurate enough, stop the noise
|
|
}
|
|
}
|