How to implement memory sharing between .NET services?

Question

I am developing a .NET application that consists of multiple services needing to share data efficiently. I am exploring various methods to achieve this, and I am seeking advice on the best approach to take. Requirements:

**Shared DbContext:

All services should use the same DbContext instance to ensure consistency and avoid issues related to multiple contexts.

Thread Safety:

The solution must be thread-safe as the services might be accessed concurrently.

Scalability:

The solution should scale as the application grows and more services are added.

Performance:

The solution should not introduce significant performance overhead.

I have looked into several methods, including:

Memory-Mapped Files: Useful for high-performance inter-process communication but seems complex for scaling across multiple services. Named Pipes: Provides a way for processes to communicate but seems limited in scalability. RabbitMQ: An option for decoupled and asynchronous communication, but I'm not sure if it's the best fit for memory sharing.