关于MINA作网关，性能提升求帮助

Question

final String host =  "127.0.0.1";
final int port = 4108;
final InetSocketAddress isa = new InetSocketAddress(host, port);
IoAcceptor acceptor = new NioSocketAcceptor(Runtime.getRuntime().availableProcessors() + 1);
  
acceptor.getFilterChain().addLast("logging", new LoggingFilter()); 
Executor threadPool = Executors.newCachedThreadPool();//建立线程池   
acceptor.getFilterChain().addLast("exector", new ExecutorFilter(threadPool));
acceptor.getSessionConfig().setReadBufferSize(100);
acceptor.getSessionConfig().setIdleTime(IdleStatus.BOTH_IDLE, 60*60);
xxxxxHandler bmh = new xxxxxHandler();
acceptor.setHandler(bmh);
acceptor.bind(isa); 

这是我的代码，我压了4500个客户端，但只有4000个有效，大家帮我看看有哪些设置我没加，可以提高网关性能，非常感谢！！！

Answer 1

建议用mina自带的线程池

Answer 2

另外保持4500个线程，它的内在会一直增加，大概十分钟，内存从4G升到6G