Consider reworking the cache report screen to start replace the cache drop down with a birds-eye view of all the registered providers showing how active/full each provider is at a glance. Then, clicking on a cache will load the detail screen you get today. Providers with issues (full or nearly full caches, or high miss ratios) could be marked red or something. Come to think of it-- the JVM chart would only need to exist on the "dashboard" view since it's not specific to any particular provider.
I think that would provide better macro-reporting and make the interface more intuitive for people using more than one provider.