分类: Java
2011-11-04 10:47:05
Eclipse startup is controlled by the options in $ECLIPSE_HOME/eclipse.ini. If $ECLIPSE_HOME is not defined, the defaulteclipse.ini in your Eclipse installation directory is used.
eclipse.ini is a text file containing command-line options that are added to the command line used when Eclipse is started up. There are many options available, please see here.
Important:
By default, eclipse.ini contains something like
which sets the heap space to 40MB initially and a maximum of 256MB, and also specifies a maximum PermGen size of 256MB.
Specifying the JVMOne of the most recommended options to use is to specify a specific JVM for Eclipse to run on. Doing this ensures that you are absolutely certain which JVM Eclipse will run in and insulates you from system changes that can alter the "default" JVM for your system. Many a user has been tripped up because they thought they knew what JVM would be used by default, but they thought wrong. eclipse.ini lets you be CERTAIN.
The following examples of eclipse.ini demonstrate correct usage of the -vm option.
Note the format of the -vm option - it is important to be exact:
On a Linux system, the file looks quite similar:
-showsplash org.eclipse.platform --launcher.XXMaxPermSize 256m -vm /opt/sun-jdk-1.6.0.02/bin/java -vmargs -Xms40m -Xmx512m Mac OS X ExampleOn a Mac OS X system, you can find eclipse.ini by right-clicking (or Ctrl+click) on the Eclipse executable in Finder, choose Show Package Contents, and then locate eclipse.ini in the MacOS folder under Contents.
To specify Java 6 for OS X:
-showsplash org.eclipse.platform --launcher.XXMaxPermSize 256m -vm /System/Library/Frameworks/JavaVM.framework/Versions/1.6.0/Home/bin/java -vmargs -Xms40m -Xmx512m See Also