Thanks Andrus, those are helpful tips. -Erlend
2012/2/7 Andrus Adamchik <[email protected]> > The best way is to use a profile like YourKit that can give you the exact > number. > > > Without a profiler, you'd have to experiment. My guess is that you are > less interested in absolute numbers (how big is my cache right now?), but > rather in a correlation of max cache size vs. the amount of heap space your > app requires (-Xmx). > > There are 2 shared caches in Cayenne - object cache and query cache. > Object cache size can be configured in the Modeler for a given DataDomain. > Query cache size configuration depends on implementation (MapQueryCache, > OSQueryCache, etc.) > > So you have these 2 numbers to play with. You fill the caches to the > maximum by doing some work in the app, and then check how much memory the > entire app is using after repeated garbage collection cycles (e.g. via > JConsole or VisualVM). > > Andrus > > > On Feb 4, 2012, at 1:55 AM, Erlend Birkenes wrote: > > Hi > > > > Is there a simple way to monitor or find out the memory usage of the > shared > > cache at runtime? > > > > > > -Erlend > >
