Use lock free cache in the byte buffer pool.

Author: js-labs

src/main/java/org/jsl/collider/ColliderImpl.java

@@ -269,7 +269,8 @@ else if (sessionEmitter.useDirectBuffers == 0)
                     final int joinPoolChunkSize = socketSendBufferSize * 2;
 
                     /* For the join pool byte order does not matter */
-                    m_joinPool = new RetainableByteBufferPool( joinPoolChunkSize, useDirectBuffers, ByteOrder.nativeOrder() );
+                    m_joinPool = new RetainableByteBufferPool(joinPoolChunkSize,
+                            useDirectBuffers, ByteOrder.nativeOrder(), 16, 2);
                 }
                 joinPool = m_joinPool;
             }
@@ -495,6 +496,9 @@ public void run()
             me.getValue().clear( s_logger );
         m_dataBlockCache.clear();
 
+        if (m_joinPool != null)
+            m_joinPool.release( s_logger );
+
         if (s_logger.isLoggable(Level.FINE))
             s_logger.fine( "finish (" + statLoopIt + ", " + statLoopReadersG0 + ")." );
     }