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症状:

  • 单击下拉列表,显示其下的所有选项列表大约需要 14 秒
  • 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 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"
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1 回答 1

3

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,它现在运行顺利。该解决方案基于这篇文章:Slow Java Swing Menus的解决方法。

于 2014-11-26T04:29:41.527 回答