如何减少Eclipse Ganymede的内存使用？ [英] How can I reduce Eclipse Ganymede's memory use?

问题描述

我使用最近的Ganymede版本的Eclipse，特别是Java EE和Web开发人员的发行版。我已经安装了一些额外的插件（例如Subclipse，Spring，FindBugs），并删除了所有的Mylyn插件。

我不会在Eclipse中做任何特别重的工作，例如启动应用服务器或连接到数据库，但由于某种原因，使用几个小时后，我看到Eclipse正在使用接近500MB的内存。

有没有人知道为什么Eclipse会使用这么多的内存（泄漏？），更重要的是，如果有什么可以改进的这个？

解决方案

我不了解Eclipse，我使用IntelliJ也会受到内存增长（无论你是积极使用或不使用！）。无论如何，在IntelliJ中，我无法消除这个问题，但是通过使用运行时VM选项来减慢内存增长。您可以尝试在Eclipse中重新设置这些内容，看看它们是否有所作为。

您可以在eclipse文件夹中的eclipse.ini文件中编辑VM选项。 >

我发现（在IntelliJ中）垃圾回收器设置对内存增长有多快的影响。我的设置是：

  -Xms128m 
  - Xmx512m 
 -XX：MaxPermSize = 120m 
 -XX：MaxGCPauseMillis = 10 
 -XX：MaxHeapFreeRatio = 70 
 -XX：+ UseConcMarkSweepGC 
 -XX：+ CMSIncrementalMode 
 -XX：+ CMSIncrementalPacing 
  

（见 http://piotrga.wordpress.com/2006/12/12/intellij-and-garbage-collection/ 用于各个设置的说明）。正如你所看到的，我更关心在编辑期间避免长时间停留，而不是使用内存使用，但是您可以将其作为开始。

I use the recent Ganymede release of Eclipse, specifically the distro for Java EE and web developers. I have installed a few additional plugins (e.g. Subclipse, Spring, FindBugs) and removed all the Mylyn plugins.

I don't do anything particularly heavy-duty within Eclipse such as starting an app server or connecting to databases, yet for some reason, after several hours use I see that Eclipse is using close to 500MB of memory.

Does anybody know why Eclipse uses so much memory (leaky?), and more importantly, if there's anything I can do to improve this?

解决方案

I don't know about Eclipse specifically, I use IntelliJ which also suffers from memory growth (whether you're actively using it or not!). Anyway, in IntelliJ, I couldn't eliminate the problem, but I did slow down the memory growth by playing with the runtime VM options. You could try resetting these in Eclipse and see if they make a difference.

You can edit the VM options in the eclipse.ini file in your eclipse folder.

I found that (in IntelliJ) the garbage collector settings had the most effect on how fast the memory grows.

My settings are:

-Xms128m
-Xmx512m
-XX:MaxPermSize=120m
-XX:MaxGCPauseMillis=10
-XX:MaxHeapFreeRatio=70
-XX:+UseConcMarkSweepGC
-XX:+CMSIncrementalMode
-XX:+CMSIncrementalPacing

(See http://piotrga.wordpress.com/2006/12/12/intellij-and-garbage-collection/ for an explanation of the individual settings). As you can see, I'm more concerned with avoiding long pauses during editting than actuial memory usage but you could use this as a start.

这篇关于如何减少Eclipse Ganymede的内存使用？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！