Is this Juno CDT eclipse.ini file correct? - eclipse-cdt

Question

I recently changed my eclipse.ini file for Eclipse Juno CDT. Eclipse then started going into a 'Not responding' mode for several seconds, especially after builds and searches. Lots of disk activity.
I think I put the eclipse.ini file back to valid values.
Does the eclipse.ini have reasonable, consistent values?
The 'Not responding' problem may be elsewhere, but I want to make sure my Eclipse configuration is not the problem.
-startup
plugins/org.eclipse.equinox.launcher_1.3.0.v20120522-1813.jar
--launcher.library
plugins/org.eclipse.equinox.launcher.win32.win32.x86_1.1.200.v20120913-144807
-product
org.eclipse.epp.package.cpp.product
--launcher.defaultAction
openFile
--launcher.XXMaxPermSize
256M
-showsplash
org.eclipse.platform
--launcher.XXMaxPermSize
256m
--launcher.defaultAction
openFile
-vmargs
-Dosgi.requiredJavaVersion=1.5
-Dhelp.lucene.tokenizer=standard
-Xms40m
-Xmx512m
-XX:MaxPermSize=512m

Answer 1

That looks fine as long as you're using it for the c++ product, not the Java one.
This is denoted by
org.eclipse.epp.package.cpp.product
Everything else you have is very similar to mine. Pasted mine below for your reference (I'm using the Java EE version)...
-startup
plugins/org.eclipse.equinox.launcher_1.3.0.v20120522-1813.jar
--launcher.library
plugins/org.eclipse.equinox.launcher.win32.win32.x86_64_1.1.200.v20120913-144807
-product
org.eclipse.epp.package.jee.product
--launcher.defaultAction
openFile
--launcher.XXMaxPermSize
256M
-showsplash
org.eclipse.platform
--launcher.XXMaxPermSize
256m
--launcher.defaultAction
openFile
-vmargs
-Dosgi.requiredJavaVersion=1.5
-Dhelp.lucene.tokenizer=standard
-Xms1024m
-Xmx2560m