Has there been any characterization to the code size impact and memory requirements for openAMP? It would be interesting to know how openAMP would impact small footprint RTOSes.
Understandably performance impacts are difficult to quantify, since there are numerous depenedencies and scenarios to consider. Has any level of characterization been done on this topic?
I don't know of any characterization that has been done, but it's easy enough to build the baremetal sample apps and get an idea.
Here's the size of the remote baremetal matrix multiply application and it seems reasonable in size.
text data bss dec hex filename 64500 2624 8840 75964 128bc matrix_multiply.out