configure memory of eclipse

-startup
plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar
–launcher.library
plugins/org.eclipse.equinox.launcher.win32.win32.x86_64_1.1.300.v20150602-1417
-product
org.eclipse.epp.package.jee.product
–launcher.defaultAction

openFile
–launcher.XXMaxPermSize
768M
-showsplash
org.eclipse.platform
–launcher.XXMaxPermSize
768m
–launcher.defaultAction
openFile
–launcher.appendVmargs
-vmargs
-Dosgi.requiredJavaVersion=1.7
-Xms2048m
-Xmx2048m
配置jdk default vm arguments:
-Xms768M -Xmx768M -XX:PermSize=768M -XX:MaxPermSize=768M
–配置Intellij IDEA
-server -XX:PermSize=128M -XX:MaxPermSize=256m