Folia/patches/server/0005-Add-chunk-system-throughput-counters-to-tps.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Spottedleaf <Spottedleaf@users.noreply.github.com>
Date: Fri, 10 Mar 2023 00:16:26 -0800
Subject: [PATCH] Add chunk system throughput counters to /tps


diff --git a/src/main/java/io/papermc/paper/chunk/system/scheduling/ChunkFullTask.java b/src/main/java/io/papermc/paper/chunk/system/scheduling/ChunkFullTask.java
index c307b084f59f7bb94dc02f25bbcd3e01e01d2306..b53d15a3979f42cb1b9a4cba24147c32f9a1a676 100644
--- a/src/main/java/io/papermc/paper/chunk/system/scheduling/ChunkFullTask.java
+++ b/src/main/java/io/papermc/paper/chunk/system/scheduling/ChunkFullTask.java
@@ -22,6 +22,9 @@ public final class ChunkFullTask extends ChunkProgressionTask implements Runnabl
     protected final ChunkAccess fromChunk;
     protected final PrioritisedExecutor.PrioritisedTask convertToFullTask;
 
+    public static final io.papermc.paper.util.IntervalledCounter chunkLoads = new io.papermc.paper.util.IntervalledCounter(java.util.concurrent.TimeUnit.SECONDS.toNanos(15L));
+    public static final io.papermc.paper.util.IntervalledCounter chunkGenerates = new io.papermc.paper.util.IntervalledCounter(java.util.concurrent.TimeUnit.SECONDS.toNanos(15L));
+
     public ChunkFullTask(final ChunkTaskScheduler scheduler, final ServerLevel world, final int chunkX, final int chunkZ,
                          final NewChunkHolder chunkHolder, final ChunkAccess fromChunk, final PrioritisedExecutor.Priority priority) {
         super(scheduler, world, chunkX, chunkZ);
@@ -35,6 +38,20 @@ public final class ChunkFullTask extends ChunkProgressionTask implements Runnabl
         return ChunkStatus.FULL;
     }
 
+    public static double genRate(final long time) {
+        synchronized (chunkGenerates) {
+            chunkGenerates.updateCurrentTime(time);
+            return chunkGenerates.getRate();
+        }
+    }
+
+    public static double loadRate(final long time) {
+        synchronized (chunkLoads) {
+            chunkLoads.updateCurrentTime(time);
+            return chunkLoads.getRate();
+        }
+    }
+
     @Override
     public void run() {
         // See Vanilla protoChunkToFullChunk for what this function should be doing
@@ -49,6 +66,17 @@ public final class ChunkFullTask extends ChunkProgressionTask implements Runnabl
                 this.world.getPoiManager().checkConsistency(this.fromChunk);
             }
 
+            final long time = System.nanoTime();
+            if (this.fromChunk instanceof ImposterProtoChunk wrappedFull) {
+                synchronized (chunkLoads) {
+                    chunkLoads.updateAndAdd(1L, time);
+                }
+            } else {
+                synchronized (chunkGenerates) {
+                    chunkGenerates.updateAndAdd(1L, time);
+                }
+            }
+
             if (this.fromChunk instanceof ImposterProtoChunk wrappedFull) {
                 chunk = wrappedFull.getWrapped();
             } else {
diff --git a/src/main/java/io/papermc/paper/threadedregions/commands/CommandServerHealth.java b/src/main/java/io/papermc/paper/threadedregions/commands/CommandServerHealth.java
index 3bcb1dc98c61e025874cc9e008faa722581a530c..0b48f45760829f1f4813b5f0f23e920dca7b1c45 100644
--- a/src/main/java/io/papermc/paper/threadedregions/commands/CommandServerHealth.java
+++ b/src/main/java/io/papermc/paper/threadedregions/commands/CommandServerHealth.java
@@ -170,6 +170,9 @@ public final class CommandServerHealth extends Command {
             totalUtil += (report == null ? 0.0 : report.utilisation());
         }
 
+        final double genRate = io.papermc.paper.chunk.system.scheduling.ChunkFullTask.genRate(currTime);
+        final double loadRate = io.papermc.paper.chunk.system.scheduling.ChunkFullTask.loadRate(currTime);
+
         totalUtil += globalTickReport.utilisation();
 
         tpsByRegion.sort(null);
@@ -284,6 +287,12 @@ public final class CommandServerHealth extends Command {
                 .append(Component.text(ONE_DECIMAL_PLACES.get().format(maxThreadCount * 100.0), INFORMATION))
                 .append(Component.text("%\n", PRIMARY))
 
+                .append(Component.text(" - ", LIST, TextDecoration.BOLD))
+                .append(Component.text("Load rate: ", PRIMARY))
+                .append(Component.text(TWO_DECIMAL_PLACES.get().format(loadRate) + ", ", INFORMATION))
+                .append(Component.text("Gen rate: ", PRIMARY))
+                .append(Component.text(TWO_DECIMAL_PLACES.get().format(genRate) + "\n", INFORMATION))
+
                 .append(Component.text(" - ", LIST, TextDecoration.BOLD))
                 .append(Component.text("Lowest Region TPS: ", PRIMARY))
                 .append(Component.text(TWO_DECIMAL_PLACES.get().format(minTps) + "\n", CommandUtil.getColourForTPS(minTps)))