The cool thing about doing it this way is that we gain persistence of memory even across reboots. I wonder if you could memory map a file that's mounted via NFS?
Like the shared memory tutorial, this one is also very basic and primitive. I'm assuming you've read that one, so I'll just hit the high points this time through..
Again, here too, the example consists of a server and a client sharing memory (the mem_map) and the server writing a a-z string to it which will be successfully converted to uppercase by the client.
Notice that, similarities in usage abound between the previous and the current tutorial which will prove to be a force for templatisation. For that we need to go ahead -- to the next tutorial!