Paper/Spigot-Server-Patches/0148-Chunk-Save-Stats-Debug-Option.patch

95 lines
4.5 KiB
Diff

From 2180b64ba27758854a3d43a078e959ae159b8a8d 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 9145401bc..ef35eb7ec 100644
--- a/src/main/java/net/minecraft/server/ChunkProviderServer.java
+++ b/src/main/java/net/minecraft/server/ChunkProviderServer.java
@@ -36,6 +36,11 @@ public class ChunkProviderServer implements IChunkProvider {
public final Long2ObjectMap<Chunk> chunks = Long2ObjectMaps.synchronize(new ChunkMap(8192));
private final ChunkTaskScheduler f;
private final SchedulerBatch<ChunkCoordIntPair, ChunkStatus, ProtoChunk> g;
+ // Paper start - chunk save stats
+ private long lastQueuedSaves = 0L; // Paper
+ private long lastProcessedSaves = 0L; // Paper
+ private long lastSaveStatPrinted = System.currentTimeMillis();
+ // Paper end
public final WorldServer world;
public ChunkProviderServer(WorldServer worldserver, IChunkLoader ichunkloader, ChunkGenerator<?> chunkgenerator, IAsyncTaskHandler iasynctaskhandler) {
@@ -253,6 +258,30 @@ 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 20aa20a98..de2231bb0 100644
--- a/src/main/java/net/minecraft/server/ChunkRegionLoader.java
+++ b/src/main/java/net/minecraft/server/ChunkRegionLoader.java
@@ -137,7 +137,13 @@ public class ChunkRegionLoader implements IChunkLoader, IAsyncChunkSaver {
}
}
- 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
@@ -329,6 +335,7 @@ public class ChunkRegionLoader implements IChunkLoader, IAsyncChunkSaver {
protected synchronized void a(ChunkCoordIntPair chunkcoordintpair, Supplier<NBTTagCompound> nbttagcompound) { // Spigot
queue.add(new QueuedChunk(chunkcoordintpair, nbttagcompound)); // Paper - Chunk queue improvements
+ queuedSaves++; // Paper
this.b.put(chunkcoordintpair, nbttagcompound);
FileIOThread.a().a(this);
}
@@ -352,6 +359,7 @@ public class ChunkRegionLoader implements IChunkLoader, IAsyncChunkSaver {
return false;
} else {
ChunkCoordIntPair chunkcoordintpair = chunk.coords; // Paper - Chunk queue improvements
+ processedSaves.incrementAndGet(); // Paper
boolean flag;
--
2.18.0