增加你的内存到8 GB以上，并禁用自动构建项目。这对我很管用。

Eclipse会延迟加载插件，大多数常见的插件， 比如Subclipse，如果你不使用它们，就不要做任何事情。 它们在运行时完全不会降低Eclipse的速度，而且它 不能帮你让他们失效。事实上，Mylyn被展示过 在正确使用Eclipse时减少内存占用。

我运行Eclipse时使用了大量的插件，但没有任何性能 罚点球。

Try disabling compiler settings that you perhaps don't need (e.g. the sub-options under "parameter is never read). Which version of Eclipse are you using? Older versions were known to be slow if you upgraded them over and over again, because they got their plug-ins folder inflated with duplicate plug-ins (with different versions). This is not a problem in version 3.4. Use working-sets. They work better than closing projects, particularly if you need to switch between sets of projects all the time.

使用-Xmx不仅需要增加内存 开关，这也是烫发的大小。我认为 在Eclipse 3.4中解决了这个问题。

虽然与Eclipse没有直接关系:

如果你运行的是Windows 7(可能还有Windows Vista)，如果你的东西在默认的位置——你的主文件夹里，一定要禁用工作空间文件夹的文件索引。Windows默认会索引你主文件夹中的所有内容，这对你的工作空间来说是一种浪费。(右键单击资源管理器中的工作区文件夹，属性->高级。)

关闭当前未使用的任何打开的项目。

尝试在开发过程中关闭自动发布模式。

禁用病毒扫描程序，或至少将任何病毒扫描程序配置为在读访问时不扫描JAR文件。

                       **Tips for making Eclipse IDE Faster**

Eclipse在处理小型项目时运行得更快。但是当你不得不处理一个大项目时，你会对它的速度感到恼火。即使有一个巨大的RAM，你也不会满意它 速度。以下步骤将帮助eclipse提高其速度

Remove unwanted activation of some of the plugins at start-up by going to windows–>preference–>General–>Startup and shutdown also make sure you don’t use those plugins in any of your views Disabling label decorations which is of less use for you, will also help you to gain some performance . Go to Windows–>Preference–>General–>Appearance–>Label -> Decorations Close unwanted projects and use working set option to move from one group of project to another smoothly. Configure eclipse.ini which will be available in the eclipse installed location.

   Configuring eclipse.ini should be based on your RAM
   -Xms256m
   -Xmx512m
   -XX:PermSize=512m
   -XX:MaxPermSize=512M

也可以访问http://wiki.eclipse.org/Eclipse.ini获取更多选择 配置eclipse.ini。

Do not keep lot of tabs opened in the editor. Better to have around 20 tabs . Regularly close the unused tabs. To open resource we can always use ctrl+shift+R and ctrl+shift+T (java resource) instead of opening lot of tabs I experienced a considerable improvement in performance when limiting the number of open tabs (In the past I frequently had 30+ tabs open). You can let eclipse handle this for you automatically: Window->Preferences->Editors-> close editors automatically 8 open tabs is the amount before the >> sign appears, so I set 14 as my default value. When opening more tabs, the ones the least recently accessed will be closed. When all editors are dirty or pinned. If it has unsaved modifications you can prompt to save & reuse (tab will be closed, a new one will be opened in its place). Or you can open a new editor end thus increase the amount of open tabs (the unobtrusive choice). If you want to ensure some tabs never get closed autmatically, you can pin them. This by clicking on the pin icon (the rightmost icon in the toolbar, with “pin editor” as tooltiptext). Go to Windows -> Preferences -> Validation and uncheck any validators you don’t want or need. Go to Windows -> Preferences -> General -> Appearance -> and uncheck any animation you don’t want or need. Go to Windows -> Preferences -> Maven and check 'do not automatically update dependencies'.