Paper/Spigot-Server-Patches/0163-Chunk-Save-Stats-Debug-Option.patch
Aikar 094bb03a37
Optimize Hoppers
- Lots of itemstack cloning removed. Only clone if the item is actually moved
- Return true when a plugin cancels inventory move item event instead of false, as false causes pulls to cycle through all items.
  However, pushes do not exhibit the same behavior, so this is not something plugins could of been relying on.
- Add option (Default on) to cooldown hoppers when they fail to move an item due to full inventory
- Skip subsequent InventoryMoveItemEvents if a plugin does not use the item after first event fire for an iteration
2018-02-12 23:26:02 -05:00

95 lines
4.4 KiB
Diff

From deb93a88dc54ae8e37230bcdd14ba69d941ff82e Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Fri, 4 Nov 2016 02:12:10 -0400
Subject: [PATCH] Chunk Save Stats Debug Option
Adds a command line flag to enable stats on how chunk saves are processing.
Stats on current queue, how many was processed and how many were queued.
diff --git a/src/main/java/net/minecraft/server/ChunkProviderServer.java b/src/main/java/net/minecraft/server/ChunkProviderServer.java
index 2b87329f4..73554a518 100644
--- a/src/main/java/net/minecraft/server/ChunkProviderServer.java
+++ b/src/main/java/net/minecraft/server/ChunkProviderServer.java
@@ -28,6 +28,11 @@ public class ChunkProviderServer implements IChunkProvider {
public final Set<Long> unloadQueue = Sets.newHashSet();
public final ChunkGenerator chunkGenerator;
private final IChunkLoader chunkLoader;
+ // Paper start - chunk save stats
+ private long lastQueuedSaves = 0L; // Paper
+ private long lastProcessedSaves = 0L; // Paper
+ private long lastSaveStatPrinted = System.currentTimeMillis();
+ // Paper end
// Paper start
protected Chunk lastChunkByPos = null;
public Long2ObjectOpenHashMap<Chunk> chunks = new Long2ObjectOpenHashMap<Chunk>(8192) {
@@ -257,6 +262,30 @@ public class ChunkProviderServer implements IChunkProvider {
// Paper start
final ChunkRegionLoader chunkLoader = (ChunkRegionLoader) world.getChunkProviderServer().chunkLoader;
final int queueSize = chunkLoader.getQueueSize();
+
+ final long now = System.currentTimeMillis();
+ final long timeSince = (now - lastSaveStatPrinted) / 1000;
+ final Integer printRateSecs = Integer.getInteger("printSaveStats");
+ if (printRateSecs != null && timeSince >= printRateSecs) {
+ final String timeStr = "/" + timeSince +"s";
+ final long queuedSaves = chunkLoader.getQueuedSaves();
+ long queuedDiff = queuedSaves - lastQueuedSaves;
+ lastQueuedSaves = queuedSaves;
+
+ final long processedSaves = chunkLoader.getProcessedSaves();
+ long processedDiff = processedSaves - lastProcessedSaves;
+ lastProcessedSaves = processedSaves;
+
+ lastSaveStatPrinted = now;
+ if (processedDiff > 0 || queueSize > 0 || queuedDiff > 0) {
+ System.out.println("[Chunk Save Stats] " + world.worldData.getName() +
+ " - Current: " + queueSize +
+ " - Queued: " + queuedDiff + timeStr +
+ " - Processed: " +processedDiff + timeStr
+ );
+ }
+ }
+
if (queueSize > world.paperConfig.queueSizeAutoSaveThreshold){
return false;
}
diff --git a/src/main/java/net/minecraft/server/ChunkRegionLoader.java b/src/main/java/net/minecraft/server/ChunkRegionLoader.java
index 77943821e..14f88e91d 100644
--- a/src/main/java/net/minecraft/server/ChunkRegionLoader.java
+++ b/src/main/java/net/minecraft/server/ChunkRegionLoader.java
@@ -39,7 +39,13 @@ public class ChunkRegionLoader implements IChunkLoader, IAsyncChunkSaver {
this.e = dataconvertermanager;
}
- public int getQueueSize() { return queue.size(); } // Paper
+ // Paper start
+ private long queuedSaves = 0;
+ private final java.util.concurrent.atomic.AtomicLong processedSaves = new java.util.concurrent.atomic.AtomicLong(0L);
+ public int getQueueSize() { return queue.size(); }
+ public long getQueuedSaves() { return queuedSaves; }
+ public long getProcessedSaves() { return processedSaves.longValue(); }
+ // Paper end
// CraftBukkit start - Add async variant, provide compatibility
@Nullable
@@ -163,6 +169,7 @@ public class ChunkRegionLoader implements IChunkLoader, IAsyncChunkSaver {
synchronized (lock) { // Paper - Chunk queue improvements
this.b.put(chunkcoordintpair, nbttagcompound);
}
+ queuedSaves++; // Paper
queue.add(new QueuedChunk(chunkcoordintpair, nbttagcompound)); // Paper - Chunk queue improvements
FileIOThread.a().a(this);
@@ -187,6 +194,7 @@ public class ChunkRegionLoader implements IChunkLoader, IAsyncChunkSaver {
return false;
} else {
ChunkCoordIntPair chunkcoordintpair = chunk.coords; // Paper - Chunk queue improvements
+ processedSaves.incrementAndGet(); // Paper
boolean flag;
--
2.16.1