![]() ![]() Update : Starting with Java 8, both the permgen space and this setting are gone. ![]() Note that this other Oracle documentation lists the other HotSpot arguments. If so, the maximum permanent generation size canīe increased with the command-line option -XX:MaxPermSize=. TheseĪpplications may need a larger permanent generation to hold theĪdditional classes. Some implementations of JavaServer Pages (JSP) pages. However, someĪpplications dynamically generate and load many classes for example, The permanent generation does not have a noticeable impact on garbageĬollector performance for most applications. This Oracle article succinctly presents the working and parameterization of the HotSpot GC and advises you to augment this space if you load many classes (this is typically the case for application servers and some IDE like Eclipse) : The permanent space is where the classes, methods, internalized strings, and similar objects used by the VM are stored and never deallocated (hence the name).
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