.net - which IOC container is the most extensible and performant? -

There are several IoC containers, mainly in MEF, Spring, Castle Windsor, Unity etc. Most Extensible and High Performance?

For most projects, the performance of IOC containers is a non-issue , So it's a bad benchmark to select one on each other unless you have very specific performance requirements.

The MEF is a separate focus in the form of containers intended to be used as a plug-in repository (runtime search ) instead of traditional dependency injection, where you mostly Know statically what your components are and how they should be wired. It does not do better or spoil, it has a different purpose.

To see some Windsor-biased comparison.