Dynamic exclusion of RDMA-based shared memory communication based on performance-related data

A computer system for facilitating processing within a computing environment, the computer system comprising:

• a memory;
• and
• a processing circuit in communication with the memory, wherein the computer system is configured to perform a method, the method comprising:
• facilitating shared memory communication between systems of the computing environment capable of communicating over a network using transmission control protocol/Internet protocol (TCP/IP), where a network path between one system and another system of the computing environment passes through one or more routers of the network, and the facilitating comprises:
• obtaining performance-related data for shared memory communication of the one system with the other system across the network path using a remote direct memory access (RDMA) protocol;
• and
• based on the performance-related data, dynamically transitioning between the RDMA protocol and the TCP/IP protocol for shared memory communication of the one system with the other system across the network path.

A computer-implemented method of facilitating processing within a computing environment, the computer-implemented method comprising:

• facilitating shared memory communication between systems of the computing environment capable of communicating over a network using transmission control protocol/Internet protocol (TCP/IP), where a network path between one system and another system of the computing environment passes through one or more routers of the network, and the facilitating comprises:
• obtaining performance-related data for shared memory communication of the one system with the other system across the network path using a remote direct memory access (RDMA) protocol;
• and
• based on the performance-related data, dynamically transitioning between the RDMA protocol and the TCP/IP protocol for shared memory communication of the one system with the other system across the network path.