There is a fascinating talk by Cliff Click "A JVM Does That?" At the end he shares some opinion about what should be done by JVM or OS and what should change.

There is a fascinating talk by Cliff Click "A JVM Does That?" At the end he shares some opinion about what should be done by JVM or OS and what should change. video: https://youtu.be/uL2D3qzHtqY https://youtu.be/uL2D3qzHtqY slides: http://www.azulsystems.com/blog/wp-content/uploads/2011/03/2011_WhatDoesJVMDo.pdf http://www.azulsystems.com/blog/wp-content/uploads/2011/03/2... I remember a talk, where he was also talking about hardware. It does not seem to be this one. For example, a time register would be useful. Syscalls like clock_gettime are too slow. CPU info like cycle counts fail with dynamic frequency scaling.