resource optimization work

.vscode/launch.json

@@ -6,7 +6,7 @@
             "name": "Launch Current File",
             "request": "launch",
             "mainClass": "${file}",
-            "vmArgs": "-Xmx6G -Xms1024m -Djava.library.path=./shared-folder -XX:+UseZGC -XX:SoftMaxHeapSize=5G -XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=\"./tmp/heap.hprof\"",
+            "vmArgs": "-Xmx8G -Xms1024m -Djava.library.path=./shared-folder -XX:+UseZGC -XX:SoftMaxHeapSize=7G -XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=\"./tmp/heap.hprof\"",
             "preLaunchTask": "Install Native Lib"
         },
         {
@@ -14,7 +14,7 @@
             "name": "Launch Main",
             "request": "launch",
             "mainClass": "electrosphere.engine.Main",
-            "vmArgs": "-Xmx6G -Xms1024m -Djava.library.path=./shared-folder -XX:+UseZGC -XX:SoftMaxHeapSize=5G -XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=\"./tmp/heap.hprof\"",
+            "vmArgs": "-Xmx8G -Xms1024m -Djava.library.path=./shared-folder -XX:+UseZGC -XX:SoftMaxHeapSize=7G -XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=\"./tmp/heap.hprof\"",
             "projectName": "Renderer",
             "preLaunchTask": "Install Native Lib"
         },
@@ -23,7 +23,7 @@
             "name": "Launch Main (Debug Memory)",
             "request": "launch",
             "mainClass": "electrosphere.engine.Main",
-            "vmArgs": "-Xmx6G -Xms1024m -Djava.library.path=./shared-folder -XX:+UseZGC -XX:SoftMaxHeapSize=5G -XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=\"./tmp/heap.hprof\" -javaagent:./lwjglx-debug-1.0.0.jar=t;o=trace.log",
+            "vmArgs": "-Xmx8G -Xms1024m -Djava.library.path=./shared-folder -XX:+UseZGC -XX:SoftMaxHeapSize=7G -XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=\"./tmp/heap.hprof\" -javaagent:./lwjglx-debug-1.0.0.jar=t;o=trace.log",
             "projectName": "Renderer",
             "preLaunchTask": "Install Native Lib"
         },
@@ -35,7 +35,7 @@
             "env": {
                 "ALSOFT_LOGLEVEL": 4
             },
-            "vmArgs": "-Xmx6G -Xms1024m -Djava.library.path=./shared-folder -XX:+UseZGC -XX:SoftMaxHeapSize=5G -XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=\"./tmp/heap.hprof\"",
+            "vmArgs": "-Xmx8G -Xms1024m -Djava.library.path=./shared-folder -XX:+UseZGC -XX:SoftMaxHeapSize=7G -XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=\"./tmp/heap.hprof\"",
             "projectName": "Renderer"
         },
         {

docs/src/progress/renderertodo.md

@@ -1994,6 +1994,8 @@ Performance improvements
  - Client leverages block chunk short pool
  - Client doesn't load physics on entities by default
  - Block chunk disk map writes files without allocating a buffer
+ - Increase memory limit 6GB->8GB
+ - Server block chunk disk map writes directly to output stream instead of inbetween buffer
 Increase human move speed
 LOD components re-attach physics
 VectorPool->JomlPool

src/main/java/electrosphere/server/physics/block/diskmap/ServerBlockChunkDiskMap.java

@@ -3,6 +3,7 @@ package electrosphere.server.physics.block.diskmap;
 import java.io.ByteArrayOutputStream;
 import java.io.DataOutputStream;
 import java.io.IOException;
+import java.io.OutputStream;
 import java.nio.ByteBuffer;
 import java.nio.ShortBuffer;
 import java.util.HashMap;
@@ -216,11 +217,10 @@ public class ServerBlockChunkDiskMap {
             fileName = BLOCK_DATA_DIR + chunkKey + "b.dat";
         }
         //compress
-        ByteArrayOutputStream out = new ByteArrayOutputStream();
+        try {
+            OutputStream out = FileUtils.getBinarySavePathOutputStream(Globals.serverState.currentSave.getName(), fileName);
             DeflaterOutputStream deflaterOutStream = new DeflaterOutputStream(out);
             DataOutputStream dataOut = new DataOutputStream(deflaterOutStream);
-        try {
-
 
             //generate binary for the file
             short[] type = chunkData.getType();
@@ -244,11 +244,10 @@ public class ServerBlockChunkDiskMap {
                 dataOut.writeShort(chunkData.getHomogenousValue());
             }
 
-
+            //flush and close
             dataOut.flush();
             dataOut.close();
-            //write to disk
-            FileUtils.saveBinaryToSavePath(Globals.serverState.currentSave.getName(), fileName, out.toByteArray());
+
             //save to the map of filenames
             worldPosFileMap.put(chunkKey,fileName);
         } catch (IOException e) {

src/main/java/electrosphere/util/FileUtils.java

@@ -22,6 +22,7 @@ import java.io.IOException;
 import java.io.InputStream;
 import java.io.InputStreamReader;
 import java.io.ObjectOutputStream;
+import java.io.OutputStream;
 import java.io.Serializable;
 import java.nio.ByteBuffer;
 import java.nio.channels.SeekableByteChannel;
@@ -401,6 +402,19 @@ public class FileUtils {
         }
     }
 
+    /**
+     * Opens an output straem to a binary file in a save directory
+     * @param saveName The save name
+     * @param pathName The path name to the file
+     * @return The output stream
+     */
+    public static OutputStream getBinarySavePathOutputStream(String saveName, String pathName) throws IOException {
+        String sanitizedFilePath = FileUtils.sanitizeFilePath(pathName);
+        File file = FileUtils.getSaveFile(saveName,sanitizedFilePath);
+        Files.createDirectories(file.getParentFile().toPath());
+        return Files.newOutputStream(file.toPath());
+    }
+
     /**
      * Checks if a given file exists in a given save
      * @param saveName the name of the save