> From: Christopher Schultz [mailto:ch...@christopherschultz.net] > Subject: Re: tomcat memory usage > > What else goes into PermGen, other than java.lang.Class objects?
It varies by JVM level. In the original HotSpot implementation it was pretty much just the instances of java.lang.Class. As things evolved, a lot of class/method/field metadata migrated into PermGen from the C heap, pushed there, I suspect, by the growing use and sophistication of JMX and JVMTI, as well as making it easier for GC to clean up dead classes. AFAIK, none of these secondary structures are directly visible to Java code. - Chuck THIS COMMUNICATION MAY CONTAIN CONFIDENTIAL AND/OR OTHERWISE PROPRIETARY MATERIAL and is thus for use only by the intended recipient. If you received this in error, please contact the sender and delete the e-mail and its attachments from all computers.
