Xms is the minimal value, while Xmx is the max. I suggest right-clicking the NetBeans shortcut, go to Properties, and on the Shortcut tab at the Target, add -J-Xmx1024m -J-Xms256m. "C:\Program Files\NetBeans Dev\bin\netbeans.exe" -J-Xms32m -J-Xmx512m -J-Xverify:none -J-XX: CMSClassUnloadingEnabled I have used some JVM parameters to set high memory usage and others: It is true that the Netbeans team improved startup speed but when it opens it begins to cache ALL. In Linux it is as slow as in Windows in the same machine (Ubuntu 8.04 圆4). Netbeans eats more RAM than my virtualized systems. ![]() My CPU use is normally at 30 percent with all my tools opened, I mean Netbeans, MS SQL Manager, Notepad, XMLSpy, Task Manager, Delphi, VirtualBox. Is my project just too large for Netbeans, if it has to read all files to get the state of files like error warnings, svn status and more? Can I disable all this? Is it possible to set it to scan only when I open a file? ![]() And when I said slow, I mean 3, 4, 5 minutes or more Netbeans is frozen. My project is a J2EE web application, more than 500 classes, only the project libraries not included (externals). In Task Manager netbeans.exe only shows no more than 20 Mb, java.exe more than 600Mb. I use the NOD32 Antivirus since for me it is the best in machine performance. I am on a Windows machine, specifically Windows Server 2008 Datacenter Edition 圆4,ĤGb of RAM, 3Ghz Core 2 Duo processor, etc. It is too slow and gets worse when you have been coding for some time. Is there a real way to get Netbeans to load and work faster?
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