[Gems-users] Message size and network latency

[Alberto Ros Bardisa <a.ros@xxxxxxxxxxx>]

Dear list,

I have noticed that changing the message size of some messages does
not affect the network latency for that message. 

For example in the MOESI_CMP_directory coherence protocol, I have
changed the message size from "MessageSizeType:ResponseLocal_Data" to
"MessageSizeType:Response_Control", and I have measured the latency of
the message before and after the change, finding the same result (8
cycles).

How does the MessageSize field affect the behaviour of the network?
What other parameters affects network latency?

Thanks in advance,

Alberto Ros.