Eclipse里编辑代码，进度条出现“Remote System Explorer Operation”，导致Eclipse有卡顿。
解决方法：
Eclipse -> Preferences -> General -> Startup and Shutdown.
- RSE UI √去掉
Eclipse -> Preferences -> Remote Systems.
- Uncheck Re-open Remote Systems view to previous state.
Update your Eclipse to 4.3.1 (at least) due to a bug on previous version.
Restart Eclipse and its done.