4096 batch

Project/Assets/ML-Agents/Examples/Tennis/Prefabs/TennisArea.prefab

     VectorActionSize: 03000000
     VectorActionDescriptions: []
     VectorActionSpaceType: 1
-  m_Model: {fileID: 11400000, guid: 02efff6cde0914e34bcc06eac03de48a, type: 3}
+  m_Model: {fileID: 11400000, guid: efc1607ab4c1542689d1451983e7dc63, type: 3}
   m_InferenceDevice: 0
   m_BehaviorType: 0
   m_BehaviorName: Tennis
     VectorActionSize: 03000000
     VectorActionDescriptions: []
     VectorActionSpaceType: 1
-  m_Model: {fileID: 11400000, guid: 02efff6cde0914e34bcc06eac03de48a, type: 3}
+  m_Model: {fileID: 11400000, guid: efc1607ab4c1542689d1451983e7dc63, type: 3}
   m_InferenceDevice: 0
   m_BehaviorType: 0
   m_BehaviorName: Tennis

Project/Assets/ML-Agents/Examples/Tennis/Scripts/TennisAgent.cs

         Quaternion deltaRotation = Quaternion.Euler(zAxis * rotateZ);
         m_AgentRb.MoveRotation(m_AgentRb.rotation * deltaRotation);
 
-        if (invertX && transform.position.x - transform.parent.transform.position.x < -m_InvertMult * 3f ||
-            !invertX && transform.position.x - transform.parent.transform.position.x > -m_InvertMult * 3f)
+        if (invertX && transform.position.x - transform.parent.transform.position.x < -m_InvertMult ||
+            !invertX && transform.position.x - transform.parent.transform.position.x > -m_InvertMult )
-            transform.position = new Vector3(-m_InvertMult * 3f + transform.parent.transform.position.x,
+            transform.position = new Vector3(-m_InvertMult + transform.parent.transform.position.x,
                 transform.position.y,
                 transform.position.z);
         }
-        //timePenalty -= m_Existential;
+        timePenalty -= m_Existential;
         m_TextComponent.text = score.ToString();
     }
 

config/ppo/Tennis.yaml

 behaviors:
   Tennis:
     trainer: ppo
-    batch_size: 2048
-    buffer_size: 20480
+    batch_size: 4096
+    buffer_size: 40960
     beta: 0.02
     epsilon: 0.2
     hidden_units: 512