java - ssh -X(X11 转发)java swing 应用程序有缓慢的下拉列表

Question

症状:

• 点击下拉列表，大约需要 14 秒才能显示其下的所有选项列表
• 所有其他 UI 元素都是交互式的；没有明显的延迟
• 只需 14 毫秒即可 ping 通我正在连接的主机

如何加快下拉列表的响应速度？

我运行的命令:

ping <destination host>
PING <destination host> (<destination ip>) 56(84) bytes of data.
64 bytes from <destination host> (<destination ip>): icmp_seq=1 ttl=50 time=16.4 ms


ssh -X <destination host>
java -cp <class path stuff> <class with main method that initializes the UI>

客户端机器信息:

ssh -V
OpenSSH_6.6.1p1 Ubuntu-2ubuntu2, OpenSSL 1.0.1f 6 Jan 2014
cat /etc/*-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=14.04
DISTRIB_CODENAME=trusty
DISTRIB_DESCRIPTION="Ubuntu 14.04.1 LTS"

服务器机器信息:

sshd -V
sshd: illegal option -- V
OpenSSH_5.9p1 Debian-5ubuntu1, OpenSSL 1.0.1 14 Mar 2012
usage: sshd [-46DdeiqTt] [-b bits] [-C connection_spec] [-c host_cert_file]
        [-f config_file] [-g login_grace_time] [-h host_key_file]
        [-k key_gen_time] [-o option] [-p port] [-u len]

java -version
java version "1.8.0_25"
Java(TM) SE Runtime Environment (build 1.8.0_25-b17)
Java HotSpot(TM) 64-Bit Server VM (build 25.25-b02, mixed mode)
cat /etc/*-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=12.04
DISTRIB_CODENAME=precise
DISTRIB_DESCRIPTION="Ubuntu 12.04 LTS"

Answer 1

我找到了一个临时解决方案。我有两台显示器(笔记本电脑和外接显示器)。我禁用了笔记本电脑显示器，现在它运行流畅。此解决方案基于这篇文章:Workaround for Slow Java Swing Menus .