Eclipse Configurations

Eclipse startup is controlled by the options in $ECLIPSE_HOME/eclipse.ini. If $ECLIPSE_HOME is not defined, the default eclipse.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

All lines after -vmargs are passed as arguments to the JVM, so all arguments and options for eclipse must be specified before -vmargs (just like when you use arguments on the command-line)

 

-vm (Executable, Main)	locate the Java VM to use to run Eclipse. It should be the full file system path to an appropriate: Java jre/bin directory, Java Executable, Java shared library (jvm.dll or libjvm.so), or a Java VM Execution Environment description file.
-startup (Executable)	The location of jar used to startup eclipse. The jar referred to should have the Main-Class attribute set to org.eclipse.equinox.launcher.Main.
--launcher.library (Executable)	the location of the eclipse executable's companion shared library.
-showSplash (Executable, Main)	specifies the bitmap to use in the splash screen.
--launcher.XXMaxPermSize (Executable)	If specified, and the executable detects that the VM being used is a Sun VM, then the launcher will automatically add the -XX:MaxPermSize= vm argument. The executable is not capable of detecting Sun VMs on all platforms.
--launcher.defaultAction (Executable)	specifies the default action to take when the launcher is started without any "-" arguments on the command line.
-vmargs [vmargs*] (Executable, Main)	Used to customize the operation of the Java VM to use to run Eclipse.

For more infor: http://wiki.eclipse.org/Eclipse.ini

More Options: http://help.eclipse.org/indigo/index.jsp?topic=/org.eclipse.platform.doc.isv/reference/misc/runtime-options.html

Optimal Settings: http://stackoverflow.com/questions/142357/what-are-the-best-jvm-settings-for-eclipse


My current settings (Eclipse Helios running in CentOS)

-vm
/opt/jdk1.5.0_15/bin/java
-startup
plugins/org.eclipse.equinox.launcher_1.1.0.v20100507.jar
--launcher.library
plugins/org.eclipse.equinox.launcher.gtk.linux.x86_1.1.1.R36x_v20100810
-showsplash
org.eclipse.platform
--launcher.XXMaxPermSize
256m
--launcher.defaultAction
openFile
-vmargs
-Xms1024m
-Xmx2096m
-XX:MaxPermSize=256m
-Dorg.eclipse.swt.browser.UseWebKitGTK=true