proxy it's slow :(

java_console/io/src/main/java/com/opensr5/io/WriteStream.java

@@ -12,6 +12,8 @@ public interface WriteStream {
      */
     void write(byte[] bytes) throws IOException;
 
+    void flush() throws IOException;
+
     default void write(byte value) throws IOException {
         write(new byte[]{value});
     }

java_console/io/src/main/java/com/rusefi/io/serial/AbstractIoStream.java

@@ -2,6 +2,8 @@ package com.rusefi.io.serial;
 
 import com.rusefi.io.IoStream;
 
+import java.io.IOException;
+
 public abstract class AbstractIoStream implements IoStream {
     private boolean isClosed;
 
@@ -17,6 +19,10 @@ public abstract class AbstractIoStream implements IoStream {
         isClosed = true;
     }
 
+    @Override
+    public void flush() throws IOException {
+    }
+
     @Override
     public boolean isClosed() {
         return isClosed;

java_console/io/src/main/java/com/rusefi/io/tcp/TcpIoStream.java

@@ -65,6 +65,12 @@ public class TcpIoStream extends AbstractIoStream {
     @Override
     public void write(byte[] bytes) throws IOException {
         output.write(bytes);
+        flush();
+    }
+
+    @Override
+    public void flush() throws IOException {
+        super.flush();
         output.flush();
     }