Hi, >Can anyone tell me how to make tomcat release memory after a servlet is
You can't. >finished? Now tomcat simply hold it and sooner or later my server starts >to swap processes because of it. It does so even if I force GC at the You can't force GC. System.gc() is only a suggestion to the collector and may be completely ignored. >end of the servlet. If it is left idle, it frees some over time, but it >takes to long. What you can do: - Allocate more memory to the heap, using the Java -Xmx parameter. - Better tune your memory profile by changing the ratio of new generation to old generation. Sounds like you're 90% new generation. See the -XX:MaxNewSize, -XX:NewSize (for JDK 1.3 and before) and also -XX:NewRatio parameter for JDK 1.4 and later. - Use a different, e.g. incremental (-Xincgc) or concurrent (on JDK 1.4 and later, -Xconcgc) garbage collector. - Ensure you don't keep references to object you don't need. If you keep strong references, the collecto won't deallocate these objects. Yoav Shapira Millennium ChemInformatics -- To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> For additional commands, e-mail: <mailto:[EMAIL PROTECTED]>