I'm not an expert, but the application's memory usage being opaque to the kernel sounds vaguely like the problems Azul had scaling its Java runtime to large (>2

I'm not an expert, but the application's memory usage being opaque to the kernel sounds vaguely like the problems Azul had scaling its Java runtime to large (>2GB) heaps. Azul recently open sourced some of their kernel patches: http://www.managedruntime.org/faq http://www.managedruntime.org/faq But that is about all I know.